eatm glossary of acronyms and abbreviations - … · eatm glossary of acronyms and abbreviations a...

EATM glossary of acronyms and abbreviations

_Tip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

__ (rho) Symbol for Range

22-D Two Dimensional

33-D Three Dimensional

44D-NAV 4-D (four dimensional) Navigation4-MAST 4-MAST Group

55ST-RSG Five-States Route Structure Group

996RIF Radio Interface

AA AmpereA Analysis (SASS-C)A AustriaA SMGCS Advanced Surface Movement Guidance and Control SystemsA/A Air/AirA/C, a/c AircraftA/D Analog-to-DigitalA/D Converter Analogue-to Digital Converter * A/G Air-Ground *A/I Accident(s)/Incident(s)A/L Auto Land *A/P Autopilot AA Approved agency *AAA Advanced ATC System Amsterdam / Contrôle régional avancé d’Amsterdam (FR)AAAV Azienda Autonoma di Assistenza al VoloAAAVTAG Azienda Autonoma Assistenza al Volo per il Traffico Aereo Generale (IT)AAC Airline Administrative ControlAAC Aeronautical Administrative Communications *AAC Alpha Attenuation CoefficientAACE Airfield Approach Control ElementAACI Airports Association Council InternationalAACO Arab Air Carriers Organisation

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Electronic source : www.eurocontrol.int/eatm/gallery/content/public/library/acronyms.pdf

Copyright EUROCONTROL 2004


ATip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

AAF ATM Added FunctionsAAFCE Allied Air Forces Central Europe AAFG ATM Added Functionality Sub-GroupAAFT ATM Added Functionality Sub-GroupAAG AIS Automation Group (EANPG)AAG AIS Automation GroupAAGDI / AGADE

Automated Air/Ground Data Interchange *

AAH Autonomous Aircraft HybridAAI Average Arrival IntervalAAIM Aircraft Autonomous Integrity Monitoring *AAIS Automated AISAAIU Air Accident Investigation UnitAALS Advanced Approach and Landing SystemAAM Airline Administration MessageAAP Advanced Automation Program (US)AAR Air-to-Air Refuelling AAS Aerodrome Advisory ServiceAAS Advanced Automation System (US)AASI Aeronautical Applications Service InterfaceAASR Airways and Airport Surveillance Radar *AAT Assigned Arrival TimeAAT Alpha Attenuation TestAATMS Advanced Air Traffic Management SystemAAUI Aeronautical Applications User InterfaceAB Action (data input) ButtonAB Audit BoardABAS Aircraft-based Augmentation System (EGNOS)ABC ATC Bypass Complex (MADAP)ABFG ATM Basic Functionality Sub-GroupABFG ATM Basic Functions Sub-Group ABI Advance Boundary Information (OLDI message)ABPSK Aviation Binary Phase Shift Keying *ABR Available Bit RateAC Assistant ControllerAC Advisory Circular *AC Assessment Centre *AC Alternating CurrentACA AUP / UUP Composition application (software)ACA Airspace Control ActivityACA Airport Co-ordinators Association ACA Air Traffic Centre Architecture (RADNET)Acad Academic establishments

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ACAD Auto Computer Aided Design (Operator-Input + Display System)ACAG Airspace Co-ordination Agencies ACAM Airport Capacity Airside Modelling ACARE Advisory Council for Aeronautics in EuropeACARS Aircraft Communications, Addressing and Reporting System *ACAS Airborne Collision Avoidance System * / Système anticollision embarqué (FR)ACAS I Aircraft Collision Avoidance System Version 1 *ACAS II Aircraft Collision Avoidance System Version 2 *ACAS III Aircraft Collision Avoidance System Version 3 *ACASA ACAS Analysis ACATF ATC Centre Communications Architecture Task ForceACC Group of Experts on Accident Investigation (ICAO)ACC Area Control Centre * / Centre de Contrôle Régional (=CCR)ACC Controller

Area Controller

ACC Loop Anticipation-Action-Comparison Loop *ACCA Air Charters Carriers AssociationACCATF Equipe spéciale “Architecture des communications des centres ATC” (FR)ACCEL AccelerateACCESS Aircraft Control Console for Experiments and Simulations StudiesACC-PC ACC Planning ControllerACCS Air Command and Control System (NATO)ACC-TC ACC Tactical Controller ACDMD Air Collaborative Decision Making DemonstratorACE Association des Compagnies Aériennes de la Communauté Européenne (FR)ACE Angiotensin Converting EnzymeACE ATC Communications EnvironmentACE Altimeter Control EquipmentACE Allied Command EuropeACF Avion de Combat Futur (FR)ACF Area Control Facility. See ACC or ARTCCACFT AircraftACG Group of Experts on the Abatement of Nuisance caused by Air TransportACG Advanced ATS Concept GroupACG ATS System Concept Working GroupACG ATM/CNS Consultation Group / Groupe consultatif ATM/CNS (FR)ACG Austro Control GmbHACG Advanced Concept Group (Eurocontrol) ACH ATC Flight Plan Change Message (IFPS)ACH ATC Flight Plan Change (CFMU)ACI Area of Common Interest * (SYSCO)ACI Airports Council InternationalACID Aircraft Identification * (ICAO)

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ACI-NA Airports Council International – North AmericaACK Acknowledge(ment) messageACL Aeronautical Clearances ServiceACM ATC Communication ManagementACM Acceptance of (Radar) Co-ordination MessageACM Airspace Control MeasuresACMS Aircraft Condition Monitoring SystemACN Aircraft Classification NumberACN Austrian Communication NetworkACN Airspace Co-ordination NotificationACNUSA Autorité de Contrôle des Nuisances Sonores Aéroportuaires (FR)ACO Airspace Co-ordination OrderACOC Agence Civile OTAN du Temps de Guerre (FR)ACOD Area Conflict Detection ACP Aeronautical Communications PanelACP Airspace Control PlanACP Abri Contrôle de Piste (FR)ACP African, Caribbean and Pacific StatesACP Accept Message (OLDI)ACP Allied Communications PublicationACP Acceptance MessageACP Area Control Procedural ACP Azimuth Change/Count Pulses *ACP Airspace Crossing Acceptance MessageACP Aircraft Control Position (window)ACPO Aircraft Position OperatorACPSC Advisory Committee on Procurement and Sales Contracts (Eurocontrol/DF)ACR Atlantic Co-ordinated RouteACS Airspace Control SystemACS Area Control SurveillanceACS Aircraft Call SignACS Advanced Communication System (EEC)ACSA Allied Communications Security AgencyACSE Application Control Service Element *ACT Activation message designator (OLDI)ACT/LAM Activation Message / Logical Acknowledgement MessageACTF Aeronautical Charting Task Force ACU Airspace / Antenna Control Unit. See BSUAD Airworthiness Directive *AD Air DefenceAD Aerodrome *AD Administrative Domain * (ENOC)AD Airspace Data Section (CFMU)

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ADA * High Order Programming Language ADAC Aeronautical Data and ChartingADAGES Action Plan Definition on the Basis of Architecture studies from GAAS for EATMS

/ Définition d’un plan d’action pour l’EATMS sur la base des études d’architecture du projet GAAS (FR)

ADAM Air Defence and Airspace Management Directorate (NATO)ADAP Automated Downlink of Airborne ParametersADAPT ATS Data Acquisition, Processing and Transfer Panel (ICAO)ADB Airports DatabaseADC Analog to Digital Converter *ADC Air Data Computer *ADC Air Defence Centre / Command ADC Aerodrome Control(ler)ADCA Air Defence Classification Area ADCE Aircraft Data Circuit-Terminating Equipment *ADCP Air Defence Command PostADD Architectural Design Document (EATMS)ADD Average Delay per Delayed Flight ADD Air Derived DataADD Architecture Description Document or Aircraft Downlinked DataADDI Automated Digital Data Interchange (ICAO)ADE Air Defence ElementADE Autonomous Display Equipment ADEG ATS Data Exchange GroupADEP Aerodrome of DepartureADES Aerodrome of DestinationADEXA Air Defence Exercise AreaADEXP ATS Data Exchange Presentation (message format used for IFPS) ; ATS Data

Exchange Program Format ; ATS Data Exchange Protocol Format / Protocole d’Echange de Données ATS (FR)

ADF Automatic Direction Finding System*ADF Adjusted Delay FactorADFL Augmented Dynamic Flight LegADGE Air Defence Ground EnvironmentADI Aerodrome Control Instrument ADI Attitude Display Indicator *ADIDS Advanced Data & Image Distribution System (CCTV Application)ADIRS Air Data Inertial Reference System *ADIS (P) Automated Data Interchange System (Panel) - ICAOADIZ Air Defence Identification ZoneADKAR Abgesetzte Darstellung von KARLDAP Radardaten (DE)ADLP Airborne Data Link Processor *ADM Airborne Data Bus*ADM Administrative / Administration

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ADM Average Delay per Movement ADMAR Abgesetzte Darstellung von MADAP Radar- und Flugplandaten (DE) / Affichage

déporté des données radar du MADAP (FR)ADMD Airspace Data Management & DistributionADMIT Administrative Information TechnologyADMSG Aeronautical Data Modelling Study GroupADNC Air Defence Notification Centre (GR) ADNET Administrative Network (Switzerland)ADNS Aeronautical Radio Incorporated Data Network Service * ADOC Air Defence Operations Centre ADOLT Air Defence Liaison TeamADORA Analysis and Definition of the Operational Requirements for ATMADP ATFM Delay PlanADP Activity Predictor DisplayADP Aéroports de Paris (FR)ADP Automated Data Processing or Auxiliary Data ProcessingADPG ATM Data Processing Sub-Group ADR Advisory RouteADR Air Data Reference ADR Airfield Damage RepairADR Average Delay per Regulated Flight ADREP Accident/Incident Reporting SystemADRS Air Defence Radar SiteADS Automatic Dependent Surveillance * / Surveillance dépendante automatique (FR)ADS-A Automatic Dependent Surveillance-AddressedADS-B Automatic Dependent Surveillance-Broadcast *ADS-C Automatic Dependent Surveillance-Contract *ADS-C ADS ContractADSEL Address Selective SSR System (UK)ADSG ATC and DP Strategy Sub-GroupADSIA Allied Data Systems Interoperability AgencyADS-ICG ADS Internal Co-ordination GroupADSP ADS Processor ADS-P Automatic Dependent Surveillance-Panel (ICAO) *ADS-PMB ADS Programme Management BoardADS-R Automatic Dependent Surveillance-Report *ADSU ADS UnitADT Approved Departure TimeADTI Additional Technical Information (ODS - ESCO)ADUG Airport Database User Group ADV Aerodrome Control VisualADVON Advanced EchelonAE Application Entity *

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AE ATM EngineeringAE Automatic Evaluation (SASS-C)AEA Association of European Airlines AECG ACAS Evaluation and Co-ordination Group (EATCHIP)AECMA European Association of Aerospace Equipment ManufacturersAEEC Airlines Electronic Engineering Committee *AEFMP Algeria, Spain, France, Morocco, Portugal Project AEGIS ATM European Group for Improvement of ScenariosAEGIS Airborne Early Warning Ground Environment Integrated SegmentAEG-TFK AEG-TelefunkenAEM BD Airports & Environment Management Business Division (Eurocontrol - DAS

Business Directorate)AENA Aeropuertos Españoles y Navegación Aérea (ES) / Spanish Airport and Air

navigation AdministrationAERA Automated En-Route Air Traffic Control *AEREA Association of European Research Establishments in AeronauticsAERO I/H+ Satellite Data 2, 3 servicesAES ATC Engineering Section AES Aircraft / Airborne Earth Station * (ICAO - ADS)AES Automatic Enhanced SurveillanceAEV Annual Equivalent ValueAEW Airborne Early WarningAEWPD Adapted EATMP Work Programme DocumentAF DME Arc to a Fix (ARINC 424 Path Terminator)AF Air Force AF Audio Frequency (VCS)AFAS Aircraft in the Future ATM SystemAFAST Active Final Approach Spacing ToolAFB Air Force Base AFC ATC Frequency Change (service)AFC Airport Facilities Control (ICAO)AFCAC African Civil Aviation CommissionAFCNF Air Force Central NOTAM Facility (US)AFCS Automatic Flight Control System *AFD Associated Flight Details AFFSC (E) Air Forces Flight Safety Committee (Europe)AFG Advisory Financial Group (ex-FCG/Eurocontrol) / Groupe Financier de

consultation (FR)AFG-TF Advisory Financial Group - Task Force on the Audit and Control BoardsAFI Africa-Indian Ocean Region (ICAO)AFIL Air Filed Flight Plan (CFMU) AFIS Airport/Aerodrome Flight Information Service *AFISO Aerodrome Flight information Service OfficerAFL Actual Flight Level

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AFL Assigned Flight LevelAFMS Advanced Flight Management SystemAFMSG Audit and Financial Matters Sub-GroupAFN Air Traffic Services Facilities Notification * (FANS)AFN BD Airspace/Flow Management & Navigation Business Division (Eurocontrol - DAS

Business Directorate)AFNOR Association Française de Normalisation (FR)AFP Active Flight Plan Processing AFP ATC Flight Plan ProposalAFPA Automated Flight Plan to Track AssociationAFPL ADEXP Filed Flight Plan (CFMU)AFS Aeronautical Fixed Services *AFS Advanced Functional SimulatorAFSATCOM Airborne Satellite Communication *AFSBW Amt für Flugsicherung der Bundeswehr (DE)AFSG Aeronautical Fixed Services GroupAFT Average Flight TimeAFTN Aeronautical Fixed Telecommunication Network * / Réseau du Service Fixe des

Télécommunications Aéronautiques (=RSFTA) (FR)AFUU Association Française des Utilisateurs d'Unix (FR)AFW Area Flows Window AGA Aerodromes (air routes and Ground Aids)AGARD Advisory Group on Aeronautical Research and Developments (NATO)AGAS High-Level European Action Group for ATM SafetyAGC Automatic Gain Control (VCS)AGC Ad-hoc Group of Commissioners (SRC)AGC Air-Ground Co-operative ATSAGCS Air-Ground Communication SystemAGCSG Air/Ground Communication Sub-Group Meeting AGDC Air/Ground Data CommunicationsAGDC-SG Air/Ground Data Communications Sub Group. See AGSGAGDC-TF Air/Ground Data Communications-TF (ODT)AGDL Air-Ground Data LinkAGDLS Air-Ground Data Link System Agency The Eurocontrol AgencyAGIFORS Airline Group of the International Federation of Operational Research SocietiesAGINF Air-Ground InfrastructureAGL Above Ground LevelAGLAE Air-Ground Data Link Applications Experimentation (FR)AGM Administrative and Guidance MaterialAGN AgendaAGOD Advisory Group on DeliverablesAGR Agreement

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AGSG Air / Ground Data Communication Sub groupAGSVC Air-Ground ServicesAGVC-SG Air/Ground Voice Communication Sub GroupAGY AgencyAHD Advanced Help DeskAHDG Assigned Heading AHEAD Automation and Harmonisation of European Aeronautical DataAHGSO Ad Hoc Group of Senior OfficialsAHMI Airborne Human Machine InterfaceAHRS Attitude and Heading Reference System *AI Aeronautical InformationAI Artificial IntelligenceAIAA American Institute of Aeronautics and Astronautics AIB Aeronautical Information Bulletin (EAD)AIC Aeronautical Information Circular *AICB Air Initiated Comm-B Protocol *AICG Airport Interface Co-ordination Group AICG Ab Initio Co-ordination GroupAICG ACAS Implementation Co-ordination GroupAICM Aeronautical Information Conceptual Model (EAD)AID Aid or Aircraft Identification *AIDA Aeronautical Information and Data handling AustriaAIDA Airport Surface Operations and Integration of Data with ATCAIDC ATS Interfacility Data Communications (ICAO)AIDS Aircraft Integrated Data SystemAIG ACAS Implementation Group ; Automatic Input GenerationAIG Accident Investigation [and Prevention]AIL Aeronautical Item Location Bank (ODS)AIM Aeronautical Information ManagementAIM ATFM Information Message (IFPS) AIM AFTN message typeAIM-FANS Airbus Interoperable Modular FANS AIMS Aircraft Integrated Monitoring (Information Management) SystemAIP Aeronautical Information Publication *AIPE Autorité Investie du PouvoirAIPN Appointing authority / Autorité investie du pouvoir de nomination (FR)AIR Air ControlAIR Armament Initiative and RequirementsAIR 4653 Aerospace Information Report 4653 – (Flight Management Systems Review)AIRAC Aeronautical Information Regulation and Control *AIRCOM Aircraft Communications *AIREP Air-Report (ICAO) AIRMET Air Meteorological Information Report

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AIRPROX The code word used in air traffic incident report to designate aircraft proximity (ICAO)

AIRPROX Aircraft Proximity ReportAIRSAW Airborne Situation AwarenessAIS Aeronautical Information Services * (ICAO) / Service d’Information Aéronautique

(=SIA) (FR)AIS AHEAD Aeronautical Information Services (AIS) Automation and Harmonisation of

European Aeronautical Data (AHEAD) ProgrammeAISAP AIS Automation Specialist Panel (EUROCONTROL)AISAS Aeronautical Information Services Automated SystemAISC Aeronautical Industry Service Communication *AISC Aeronautical Mobile Communications System PanelAISG AIS Automation Working Group (ICAO)AISOPS AIS Operations Sub-GroupAISPOP AIS Planning and Operations SubgroupAISS Aeronautical Information Server System (ODS)AIST AIS TeamAISTEC AIS Technical Sub-GroupAIS-TF AIS Training Task Force AISU Aeronautical Information Service UnitAITSC Administrative IT Steering Committee AIW Area Infringement WarningAIXM Aeronautical Information Exchange ModelAKARD Available Knowledge And required system Research and DevelopmentAL Alerting Service *AL Aircraft LabelAL AlbaniaALAR Approach and Landing Accident Reduction Task ForceALARP As Low As Reasonably PracticableALB Alternative LabelALCC Airlift Central Co-ordination CentreALCE Airlift Control Element ALCM Air Launched Cruise MissileALD Airlift DivisionALENA Accord de libre-échange pour l’Amérique du Nord (FR) / North American Free

Trade Agreement (=NAFTA)ALERFA Alert Phase *Alert Alert Phase *ALIM Altitude Limit (Positive RA Altitude Threshold)ALLA Allied Long Lines AgencyALMC Airlift Movement CellALO Air Force Liaison OfficerALPA Air Line Pilots AssociationALRC Altitude Reconstruction

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ALRT AlertALRTF ATCO Licensing Review Task ForceALS Automatizovany Letisni System (CZ) / Automated Airport SystemALS Automatic Line Switch (RMCDE)ALS Architecture Layer Structure (ISO) ALT Airborne Link TerminalALTRV Altitude Reservation SystemALUG AudioLAN Users GroupAM Attribute ModificationAM Airspace Management *AM Amplitude Modulation *AM ArmeniaAM Arrival Manager * AMA Airlift Management Agency AMAN Arrival Manager (APATSI) *AMC Airspace Management Cell *AMC ATC Microphone Check (service)AMC Aeromedical CentreAMC Acceptable Means of ComplianceAMC/CADF Airspace Management Cell - ECAC Centralised Airspace Data Function AMCP Aeronautical Mobile Communication Panel * (ICAO)AMD Arrival manager DisplayAMD Administrative Management DomainAMDAR Aircraft Meteorological Data Relay PanelAMDP Airspace Management Data ProcessingAMDP-TF EATCHIP Airspace Management Data Processing Task ForceAMDT Amendment (ICAO) AMDWP Aeromedical Working PartyAME ATM Message ExchangeAME Authorised Medical ExaminerAMEG Air Miss Evaluation Group (D)AMHS Aeronautical Message Handling ServiceAMI Administrative and Management Information SoftwareAMID Approach Multi-Input Device (ODID)AMJ Advisory Material JointAML (WP) Airfield Markings and Lighting (Working Party)AMN Airspace Management and Navigation (EATMP Unit)AMOC ATFM Modelling CapabilityAMOC ATFM Air Traffic Flow Management AMOS ARTAS Maintenance and Operational Support organisation AMPS American Mobile Phone SystemAMRSG ATCO Medical Requirements Study Group (UK)AMS ATC Model-Simulations Studies

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AMS Aeronautical Mobile Service * (8.33 User Guide)AMS Airspace Management ServiceAMS(R)S Aeronautical Mobile Satellite (Route) Service *AMSC Allied Military Security CodeAMSL Above Mean Sea Level AMSS Automatic Message Switching SystemAMSS Aeronautical Mobile Satellite SystemAMSS Aeronautical Mobile Satellite Services *AMSSP Aeronautical Mobile Satellite Service PanelAMT ADS Mediterranean TrialsAMTI Adaptive Moving Target IndicatorAN Access Node (RMCDE)ANA Aeroportos e Navegaçao Aérea (PT)ANA-EP Aeroportos e Navegaçao Aérea Empresa Pública (PT)ANC Air Navigation Commission * / Conference (ICAO)ANC Access Network Computer (RADNET) ANCAT Abatement of Nuisances Caused by Air Transport (ECAC environmental policy

committee (ENVAL)ANDB Automated NOTAM DatabaseANDRA Advanced Node for Data Relay in ATNANDS ANS DepartmentANERC Advanced New En-Route Centre (UK)ANM ATFM Notification Message (CFMU / ECAC States)ANOVA Analysis of VarianceANP Air Navigation Plan *ANPP Air Navigation Plan Publication ANS Air Navigation Service *ANS/CR Air Navigation Services of the Czech RepublicANSA International Advisory Group Air Navigation ServicesANSEP Air Navigation Services Economics Panel (ICAO) / Groupe d’experts sur

l’économie des services de navigation aérienne (FR)ANSI American National Standards InstituteANSO Air Navigation Services Offices (Irish aviation authority)ANSP Air Navigation Service ProviderANT Airspace and Navigation TeamAO Arrival Operations AO Airlines OperatorAO Aircraft Operator * (IFPS)AO Airport OperationsAO ATM OperationsAOA Aircraft Operating Agency (e.g. Airlines) *AOA ACARS over AVLCAOA ACARS Over AVLC

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AOB Any Other BusinessAOB Air Order of BattleAOB Angle of BankAOC Airline Operational Communications *AOC Aircraft Operations Centre (ICAO)AOC Aeronautical Operational Control *AOC Airline Operation ControlAOC Auxiliary Output ChipAOC Air Operator’s Certificate / Certificat de transporteur aérien (FR)AOC Assume of Control (ODID) AOC Aircraft Operating CompanyAOC Aeronautical Operational CommunicationsAOC Advanced Operational Capability (EGNOS)AOCD Airport Operations Concept DocumentAOCI Airport Operators Council InternationalAOCP Airborne Operational Computer ProgrammeAOF Allocation of FunctionsAOF AIS Office (EAD)AOI Aircraft Operations InformationAOI Area of Operational Interest AOI AIS OfficeAOIS Aeronautical Operational Information SystemAoL Area of ResponsibilityAOM Airspace Organisation and ManagementAOM Aircraft Operations ManualAOP Airport Operations Unit (EATM)AOP Aeronautical OSI ProfileAOP Airport Operations ProgrammeAOPA Aircraft Owner and Pilot AssociationsAOPG Aerodrome Operations Group (ICAO) / Groupe sur l’exploitation technique des

aérodromes (FR)AOPTF Aerodrome Operations Task ForceAOR Atlantic Ocean Region (ICAO)AOR Area of Responsibility *AOR-E Atlantic Ocean Region - East (ICAO) AORTF ATM Added Functionality Operational Requirements Task ForceAOR-W Atlantic Ocean Region - West (ICAO)AOS Airport Operations Strategy Drafting GroupAOT Airport Operations Team AOU Aircraft Operator Unit (CFMU)AOWIR Aircraft Operator What-If Re-routing / Outil de Simulation des Réacheminements

destiné aux exploitants d’aéronefs (FR)AOWP Airport Operations Work Plan

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AP Auto-Pilot AP Application Process *APANPIRG Asia/Pacific Air Navigation Planning and Implementation Regional Group *APAPI Abbreviated Precision Approach Path IndicatorAPARMO Asia/Pacific Approvals Registry and Monitoring OrganizationAPAS Actions de promotion d'accompagnement et de soutien (STAR) (FR)APATSI Airport / Air Traffic Systems Interface * (ECAC) / Interface Services d’Aéroport-

services ATS (FR)APB APATSI Project BoardAPC Airspace Policy Commission (ATFM)APC Aeronautical Passenger Communications / Correspondence *APC Aeronautical Public CorrespondenceAPC Assistant Planning ControllerAPD Activity Predictor Display APDLC Aircraft Proximity Data Link Communication (ICAO)APDSG ATM Procedures Development Sub-GroupAPE Analysis Programme for EvaluationAPEC Asia Pacific Economic CooperationAPERMECA Association pour le Perfectionnement des Méthodes de Contrôle de la

Circulation AérienneAPI Application Programming Interface (ODS)APIRG Africa-Indian Ocean Planning and Implementation Regional Group (ICAO)APL Abbreviated Flight Plan (IFPS)APL Applied Physics LaboratoryAPL ATC Flight PlanAPM Architecture Project Management APMB ACAS Programme Management BoardAPO Airport OperatorAPO Aircraft Performance and OperationsAPOD Airport of DebarkationAPP Approach Centre / Control *APP controller/director

Approach controller/director

App. AppendixAPPAG ATFM Policies and Principles Advisory GroupAPPA-SG ATFM Policies and Principles Advisory Sub-GroupAPP-ASS Approach-AssistantAPR Automatic Position Reporting APS Approach Control SurveillanceAPSB ACAS Programme Steering BoardAPSG ACAS Programme Steering GroupAPT Airport Traffic ManagementAPT Airport SimulationAPT Airport(s)

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APT Airspace Planning Team (EATCHIP) became ANT (March 94)APT BD Airport Throughput Business Division (Eurocontrol - DAP Business Directorate)APU Auxiliary Power UnitAPV Accurancy Position & VelocityAPW Area Proximity WarningAQAP Allied Quality Assurance Publication AQG Agency Quality GroupAQP Advanced Qualification Programme A-QPSK Aviation Quadrature Phase Shift Keying *AR Automatic ReminderAR Agency Representative (CIP)AR Air RouteAR-1 Approach Radar 1ARAC Aviation Rulemaking Advisory CommitteeARB Authoritative Representative BodyARC Airlift Requirement Centrearc assigned rate of climb/descent ARC Advanced Research for/in Air Traffic ControlARC 2000 Automatic Radar Control for the 21st Century (CEE)ARCA Advanced en-Route Centre for Air Traffic ManagementARCC Air Rescue Co-ordination CentreARCH Archives and Quality Control System (CFMU)ARCID Aircraft Identification * (CFMU)ARCOS Arrival Co-ordination System (D)ARCP Air Refuelling Control PointARDEP Analysis / Assessment of Research and Development in Eurocontrol

ProgrammesARDM Airspace Regulation, Design and ManagementARDRS Automatic Radar Data Recording SystemARDS ATM Architecture and overall system engineeringARETA ATM with RNAV in Extended Terminal AreaARFA Allied Radio Frequency Agency ARH ArchitectureARIBA ATM system safety criticality Raised Issues in Balancing Actors ResponsibilityARINC Aeronautical Radio Incorporated (US)ARINC 306 Guidance For Designers Of Aircraft - Electronic InstallationsARINC 307 Aircraft Integrated Data System Wire Bundle ProvisionsARINC 404A Air Transport Equipment Cases And RackingARINC 406A Airborne Electronic EquipmentARINC 408A Air Transport Indicator Cases And Mounting ARINC 413A Guidance For Aircraft Power Utilisation And Transient ProtectionARINC 414 General Guidance For Equipment And Installation EngineersARINC 415 Operation/Technical Guidelines On Failure Warning and Functional Test

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ARINC 419 Digital Data System CompendiumARINC 421 Guidance For Standard Subdivision of ATA Spec 100 Numbering System for

AvionicsARINC 422 Guidance For Modification Status Indicators & Avionics Service BulletinsARINC 424 Navigation System Data Base * ARINC 429 Mark 33 Digital Information Transfer SystemARINC 528 Airborne Tape RecorderARINC 533A Airborne HF SSB/AM System ARINC 541 Airborne Magnetic Flight Data RecorderARINC 542 Airborne Oscillograph Flight Data RecorderARINC 542A Digital Flight Data RecorderARINC 551 Airborne Glide Slope Receiver - Mark 2ARINC 557 Airborne Voice RecorderARINC 559A Mark 2 Airborne HF SSB/AM SystemARINC 561 Air Transport Inertial Navigation System - INSARINC 566 Airborne VHF Communications Transceiver And Mark 1 VHF SATCOM SystemARINC 566A Mark 3 VHF Communications TransceiverARINC 569 Heading and Altitude Sensor (HAS)ARINC 569 Airborne Distance Measuring Equipment ARINC 571 Inertial Reference System (INS)ARINC 572 Mark 2 Air Traffic Control TransponderARINC 573 Aircraft Integrated Data System (AIDS) Mark 2ARINC 574 Passenger Announcement, Entertainment & Service Multiplex SystemARINC 575 Mark 3 Subsonic Air Data System (Digital)ARINC 576 Mark 4 Subsonic Air Data SystemARINC 577 Audible Warning SystemARINC 578 Airborne ILS Receiver ARINC 579 Airborne VOR ReceiverARINC 585 Electronic Chronometer SystemARINC 591 Quick Access Recorder For Aids System (OAR)ARINC 592 Airborne Passenger Tape RecordARINC 594 Ground Proximity Warning System (GPWS)ARINC 595 Barometric Altitude Rate ComputerARINC 596 Mark 2 Airborne SELCAL SystemARINC 597 Aircraft Communications Addressing And Reporting System (ACARS)ARINC 597A Enhanced ACARS Avionics ARINC 59MA Airborne Announcement Tape ReproducerARINC 600 Air Transport Avionics Equipment InterfacesARINC 601 Control/Display InterfacesARINC 602 Test Equipment GuidanceARINC 602A Test Equipment GuidanceARINC 603 Airborne Computer Data LoaderARINC 604 Guidance For Design And Use Of built-In Test Equipment (BITE)

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ARINC 605 Users Guide For ARINC 616 Avionics Subset Of ATLAS LanguageARINC 606 Guidance For Electrostatic Sensitive Device Utilisation & Protection, Sup. 1ARINC 608 Standard Modular Avionics Repair And Test System (SMART)ARINC 609 Design Guidance For Aircraft Electrical Power Systems ARINC 610 Guidance For Design and Integration of Aircraft Avionics Equipment In

Simulators, Supplement 1ARINC 611 Guidance For The Design and Installation Of Fuel Quantity Systems, Sup. 1ARINC 612 BITE GlossaryARINC 613 Guidance for Using the Ada Programming Language in Avionics SystemsARINC 614 Standard Firmware Loader For Avionics ShopsARINC 615 Airborne Computer High Speed Data Loader, Supplement 3ARINC 616 Avionics Subset of ATLAS LanguageARINC 620 Data Link Ground System Standard And Interface SpecificationARINC 623 North American Specification for ACARS-Based MessagesARINC 624 Design Guidance For Onboard Maintenance SystemARINC 626 Standard ATLAS For Modular Test ARINC 627 Programmers Guide For Smart Systems Using ARINC 626 ATLASARINC 629 Multi Tester Data BusARINC 629 Multi-Transmitter Data BusARINC 631 Aviation Packet Communications Functional DescriptionARINC 651 Design Guidance For Integrated Modular ElectronicsARINC 659 Backplane Data Bus for Integrated Modular AvionicsARINC 701 Flight Control Computer SystemARINC 702 Flight Management Computer, Supplement 4 & 5ARINC 703 Thrust Control Computer ARINC 704 Inertial Reference System, Supplement 6ARINC 705 Altitude and Heading Reference System (AHRS)ARINC 706 Subsonic Air Data SystemARINC 707 Radio Altimeter, Supplement 6ARINC 708 Airborne Weather RadarARINC 709 Airborne Distance Measuring Equipment, Supplement 8ARINC 709A Precision Airborne Distance Measuring EquipmentARINC 710 Mark 2 Airborne ILS ReceiverARINC 711 Mark 2 Airborne VOR Receiver ARINC 714 Mark 3 Airborne SELCAL SystemsARINC 715 Airborne Passenger Address AmplifierARINC 716 Airborne VHF Communications TransceiverARINC 717 Flight Data Acquisition And Recording SystemARINC 718 Mark 3 ATC TransponderARINC 719 Airborne HF/SSB SystemARINC 720 Digital Frequency/Function Selection for AirborneARINC 722 Electronic Equipment Protection Video SystemARINC 723 Ground Proximity Warning System (GPWS)

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ARINC 724 Mark 2 Aircraft Communications ARINC 724A Mark 2 ACARS AvionicsARINC 724B Aircraft Communications Addressing and Reporting System (ACARS)ARINC 725 Electronic Flight Instruments (EFIS)ARINC 726 Flight Warning Computer SystemARINC 727 Airborne Microwave Landing SystemARINC 728 Avionics Refrigeration and Cooling System (ARCS)ARINC 729 Analog And Discrete Data Converter SystemARINC 730 Airborne Separator Assurance SystemARINC 731 Electronic Chronometer ARINC 732 Mark 2 Airborne Passenger Audio Entertainment Tape Reproducer, Supplement

1ARINC 735 Traffic Alert and Collision Avoidance System (TCAS), Supplement 1ARINC 737 On Board Weight and Balance System. Supplement 1ARINC 738 Air Data and Inertial Reference System (ADIRS)ARINC 739 Multi-Purpose Control and Display UnitARINC 740 Multiple-Input Cockpit PrinterARINC 7411P2

Aviation Satellite Communication System Part 2 - Satellite Design

ARINC 741P1 Aviation Satellite Communication System Part I - Aircraft Installation ProvisionsARINC 741P4 Aviation Satellite Communications System Part 4 - Specification and Description

LanguageARINC 742 Design Guidance For Windshear Warning and Guidance EquipmentARINC 743 Airborne Global Positioning System ReceiverARINC 743A GPS/GLONASS Sensor ARINC 744 Full Format PrinterARINC 745 Automatic Dependent Surveillance, Supplement 1ARINC 746 Cabin Communications System, Supplement 1ARINC 747 Flight Data RecorderARINC 748 Communications Management Unit (CMU)ARINC 750 VHF Data Radio (VDR)ARINC 751 Gate-Aircraft Terminal Environment Link (Gatelink) - Aircraft SideARINC 752 TFTS Airborne Radio Sub-SystemARINC 753 HF Data Link SystemARINC 757 Cockpit Voice Recorder (CVR) ARINC539A Airborne 400 Hz AC Tape ReproducerARLO Air Liaison OfficerARM ADS Report Message ARM Air Request MessageARM Anti Radiation MissileARM ArmeniaARMATS State Closed Joint-Stock Company of Armenian Air Traffic ServicesARN ATS Routes and Associated Navigation MeansARN-1 (Table) Basic ATS Route Network in the Lower and Upper Airspace

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ARN-2 (Table) Radio Navigation Aids Associated with the Basic ATS Route Network Terminal Area and Instrument Approach Procedures

ARN-V2 ATS Route Network – Version 2 (ECAC, EATMP) ARN-V3 ATS Route Network – Version 3 (ECAC, EATMP)ARO Air Traffic Service Reporting Office *ARP Aerodrome Reference Point / Aerospace Recommended PracticeARP Automated Route PlanningARP/TF Task Force on Arrangements and Regulatory Processes governing the Route

Charges System under the Revised ConventionARPA Advanced Research Project AgencyARQ Automatic Request Repeat / Automatic Response to QueryARR Arrival MessageARR SP Arrival Sequence PlannerARS Aeronautical Radio Navigation ServiceARS Avoidance Routing Scheme ARSA Airport Radar Service AreaARSC Air Rescue Sub CentreARSR Air Route Surveillance Radar * (US)ART Analysis and Replay ToolARTAS Air Traffic Management Surveillance Tracker and Server System / Système de

poursuite et serveur radar ATM (FR)ARTAS TF ARTAS Task ForceARTAS/CAMOS

ATM Surveillance Tracker and Server / Central ARTAS Maintenance and Operational Support

ARTCC Air Route Traffic Control Centre * (US)Artemis An ESA experimental telecommunications satellite hosting an EGNOS navigation

transponderARTES 9 Advanced Research in Telecommunication SystemsARTF Administrative Reform Task ForceARTS Automated Radar Terminal System ARTS Area Radar Training Squadron (US)ARU Airspace Reservation UnitARYM Ancienne République Yougoslave de Macédoine (FR)AS AirspeedAS AirspaceAS, A-S Anti Spoofing *ASA Airspace Safety Analysis GroupASA Automatic Slot AssignmentASA Aviation Safety AllianceASA Aircraft Situation Awareness ASA Automated Support to ATSASA System Automatic Slot Assignment SystemASAG Automated Support to ATS Focus GroupASAP Aircraft Separation Assurance Programme

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ASAP As soon as possible / practicable ASARS Air Surveillance Airborne Radar SystemASAS Airborne Separation Assurance System / Système de garantie de séparation des

vols (FR)ASC AscendingASCAP Automatic SSR Code Assignment ProcedureASCB Avionics Standard Communication Bus *ASCII American Standard Code for Information Interchange / Exchange *ASCOT Airport Slots Compliance ToolsASD Architecture and System Design Section (CFMU)ASD Air Situation DisplayASDA Accelerate Stop Distance AvailableASDAR Aircraft to Satellite Data RelayASDE Airport Surveillance Detection EquipmentASD-TF Air Situation Display Task ForceASE Application Service Element *ASE ATM Systems EngineeringASE Altimetry System ErrorASE Agence Spatiale Européenne (FR)ASECNA Agency for the Safety of Air Navigation in Africa and Madagascar * / Agence pour

la Sécurité de la Navigation aérienne en Afrique et à Madagascar (FR)ASEP ACCS Surveillance Exploratory Prototype (NATO / SHAPE)ASE-TF ATM System Engineering Task Force (EATM)ASHTAM NOTAM relating to volcanic and/or dust activity (ICAO)ASI Asia Region * (ICAO)ASI Aerospace Sciences Inc.ASIC Application-Specific Integrated Circuit *ASM Ad-hoc Schedule Message (CFMU) ASM AirSpace Management *ASMAC Automated System for Management of Aeronautical Information and ChartingASMC Aerodrome Surface Movement ControlASMC Airspace Management CommunicationsASMGCS Advanced Surface Movement Guidance and Control Systems * ASM-HB Airspace Management HandbookASMI Airport Surface Movement IndicatorASM-SG Airspace Management Sub-Group (Sub-Group of ANT)ASM-SG Airspace Management Subgroup (EATM)ASMT ATM Safety Monitoring Tool / Instrument de Contrôle de la Sécurité de l’ATM

(FR)ASMTF Airspace Management Task ForceASN Aviation Safety NetworkASN Abstract Syntax Notation *ASN 1 Abstract Syntax Notation One *ASNO Approach Sequence Number

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ASO Air Surveillance OfficerASOC Air Sovereignty Operations Centre ASOC Army Support Operations CentreASOP Airspace Organisation and ProceduresASP AIRCOM Service Processor (SITA)ASP ATM Service ProviderASP Air SpaceASP Air Navigation Service ProviderASP Arrival Sequence Plannerasp assigned speed ASP Aeronautical Information Service Staff Profile Task ForceASP Adjustable System Parameter (ODS)ASPP Aeronautical Fixed Service Systems Planning for Data Interchange Panel *ASQF Application Specific Qualification Facility (part of EGNOS)ASR Airport Surveillance Radar * (TAR)ASR BD Agency Safety Regulatory Business Division (Eurocontrol)ASRB Agency Safety Regulation Bureau (EUROCONTROL)ASRS Aviation Safety Reporting SystemASRT Air Support Radar TeamASSR Assigned SSR code (FPPS/DECADE)ASTA Airport Surface Traffic AutomationASTER Aviation Safety Targets for Effective RegulationASTERIX Radar Data Exchange - Focus GroupASTERIX All purpose Structured Eurocontrol Radar Information ExchangeASTF Air Server Task ForceAST-FP SRC Annual Summary Template - Focal Points GroupASTP ADS Studies and Trials Project ASTRA Customized version of ARTAS designed for airport surveillanceASU ACAS Support UnitASW Air Situation WindowASW Anti Submarine WarfareAT Austria, Republic of Austria (ISO Country Code)AT Actual Time Count DownAT Air TransportAT At TimeATA Actual Time of Arrival *ATA Air Transport Association (of America)ATAC Airspace Traffic Data Capture ATAF Allied Tactical Air Force / Force Aérienne Tactique (=FATA) (FR)ATAFF Air Traffic Arbitrated Free FlightATAG Air Transport Action GroupATAR Automatic Air Reporting ATARS Automatic Traffic Avoidance and Resolution System

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ATAS Air Traffic Advisory Service *ATC Air Traffic Control * / Contrôle de la circulation aérienne (FR)ATCA Allied Tactical Communications AgencyATCA Air Traffic Control Assistant ATCA Air Traffic Control Association (US)ATCAP Air Traffic Control Automation Panel (ICAO)ATCAS (Sweden) ATC Automated SystemATCC Air Traffic Control Centre / Centre de Contrôle de la Circulation Aérienne (FR)ATCC Air Traffic Control Clearance *ATCEUC Air Traffic Controllers European Unions Co-ordinationATCgram Illustration in graph form of the main functional levels of ATC systemsATC-HMI Air Traffic Control Human Machine Interface *ATCI Airport ATC and Information systemsATCO Air Traffic Controller or Air Traffic Control Officer / Contrôleur de la Circulation

Aérienne (FR)ATCRBS Air Traffic Control Radar Beacon System *ATCRU Air Traffic Control Radar Unit ATCS Air Traffic Control Service * / Service du Contrôle du Trafic Aérien (=SCTA) (FR)ATCSQ Air Traffic Control Safety QuestionnaireATCU Air Traffic Control UnitATD Along Track Distance *ATD Air Traffic Control & Data ProcessingATD Actual Time of DepartureATD Air Traffic Services DevelopmentATDS Airborne Tactical Data SystemATE Automatic Test EquipmentATFC Air Traffic Flow ControllerATFCM Air Traffic Flow and Capacity ManagementATFM Air Traffic Flow Management * / Gestion des courants de trafic aérien (FR)ATFMC Air Traffic Flow Management Communications ATFMO Air Traffic Flow Management OrganisationATFMP Air Traffic Flow Management Position (CFMU)ATFMS Air Traffic Flow Management SystemATFMU Air Traffic Flow Management UnitATFR Air Traffic Flow RegulatorATG Air Traffic GeneratorATI Automatic Tracking InitiationATIC Administrative and Technical Inspection Committee (Agency structure) / Mission

d’Inspection administrative et technique (=MIAT) (FR)ATIF ATN Trials Infrastructure ATILO Administrative Tribunal of the International Labour Organisation / Tribunal

Administratif de l’Organisation internationale du Travail (=TAOIT) (FR)ATIS Automatic Terminal Information Service *ATLAS Air Traffic Land and Air Study [or Airborne Systems] (European Commission)

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ATM Asynchronous Transfer ModeATM Air Traffic Management * + ... Message / Gestion de la circulation aérienne. (FR)ATM 2000+ ATM Strategy for the Years 2000+ATM 2000+ SB

ATM 2000+ Strategy Board

ATM R&D RG European ATM Research and Development Programme Review GroupATMAS Air Traffic Management Automated System (It. ATFM)ATMC Air Traffic Management CentreATMCP ATM Operational Concept Panel (ICAO)ATMCT Air Terminal Movement Control Team Centre (NATS UK)ATMG Air Traffic Management Group ATM-IS ATM Information ServiceATMO Air Traffic Management Organisation *ATMOS Air Traffic Management Operating SystemATMS Advanced Air Traffic Management SystemATN Aeronautical Telecommunication Network * / Réseau de télécommunications

aéronautiques (FR)ATN EURET see EURATNATN RD Aeronautical Telecommunication Network Routing DomainATN RDC Aeronautical Telecommunication Network Routing Domain Confederation *ATNAVICS Air Traffic Navigation, Integration and Co-ordination SystemATNC ATN and Communication ArchitectureATN-ES ATN End-SystemATNI Aeronautical Telecommunication Network Internet *ATNP Aeronautical Telecommunication Network Panel * (ICAO)ATNSI ATN System Inc. (US) ATN-VDL Aeronautical Telecommuncations Network / VHF Digital LinkATO Actual Time Overhead or Overflying (CFMU - CASA)ATO Airborne Traffic ObservationATOC Allied Tactical Operations CentreATOPS Advanced Transport Operating SystemATOT Actual Take Off Time (CFMU)ATRAC Air Navigation Services Employee Training ConceptATRACC ATC System for Riga Area Control CentreATRK Alone Track Error *ATS Air Traffic Services * ; Services de la circulation aérienne. ATS BD Air Traffic Services Business Division (Eurocontrol)ATSA Air traffic Services Authority (Bulgaria & Croatia)AT-SAT Air Traffic Selection and Training (US) ATSC Air Traffic Services Communications *ATSD Air Traffic Situation DisplayATSEP Air Traffic Safety Electronics PersonnelATSEX ATS External Communications

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ATSIS Air Traffic Services Investigation SystemATSN Air Traffic Service NetworkATSO Air Traffic Services OperatorATSO Air Traffic Services OrganisationATSORA Air Traffic Services Outside Regulated AirspaceATSP Air Traffic Service Providers ATSSD ATS Standards DepartmentATSU Air Traffic Service Unit *ATSup Air Traffic Supervisor ATT Along Track ToleranceATT Attitude IndicatorATWR Apron TWRATZ Aerodrome Traffic Zone *AU Arbitrary UnitAud Audio aids *AUG ARTAS User GroupAUP Airspace Use Plan AUS Airspace Utilisation ServiceAUSTRO CONTROL

Österreichische Gesellschaft für Zivilluftfahrt mbH (AT)

AUTOCAD Automatic Computer Aided Design AutoNav Auto-NavigationAUTOVON Automatic Voice NetworkAUW All Up WeightAV Audio-visual aids *AVASI Abbreviated Visual Approach Slope IndicatorA-VASIS Advanced Visual Approach Slope Indicator SystemAVENUE ATM Validation Environment for Use towards EATMSAVG Approach with Vertical GuidanceAVI Audio/Video InterleavedAVINOR Norwegian Air Navigation Service ProviderAVLC Aviation VHF Link ControlAVNET Assitenza al Volo Network (IT)AVOL Aerodrome Visibility Opera-tional LevelAVPAC Aviation VHF Packet Communications *AVT ADS-B Validation TestbedAW Area Width AW Aerial Work *AW/P Active Way Point *AWACS Airborne Warning and Control System / Système de détection aéroporté (=SDA)

(FR)AWIR Automatically generated What-If Re-routing / Outil de Simulation Automatique

des Réacheminements (FR)AWOG All Weather Operations Group

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AWOP All Weather Operations Panel * (ICAO)AWOS Automatic Weather Observing System *AWP Ancillary Working PositionAWP Arrival WaypointAWX All Weather AWY Airway *AZ Azerbaijan (ISO country Code)AZ Aerodrome zoneAZERTY (arrangement of keys on keyboard, French style)

BB BelgiumB&D Bearing and DistanceB&H Bosnia and HerzegovinaB/C Benefit / CostB/CRS Back Course *BA Bosnia and Herzegovina, Republic of Bosnia and Herzegovina (ISO Country

Code)BA Barometric Altitude *BAA British Airport AuthorityBADA Base of Aircraft Data ; Aircraft performance Data BaseBAF Belgian Air Force BARS Behaviour Anchored Rating Scales *BARTCC Berlin Air Route Traffic Control CentreBase AM Base Arrival ManagerBase AMD Base Arrival Manager DisplayBAST Basic ATC Skills TrainerBATAP ‘Type-B’ Application To Application ProtocolBAZ Bundesamt für Zivilluftfahrt (Austria) (AT) / Austrian aviation authorityBCA Border Crossing AuthorityB-CAS Beacon Collision Avoidance SystemBCBP Bilateral Communication Plan Co-ordination BCD Binary-Coded DecimalBCP Business Continuity PlanBd Baud * BDP Brussels ACC ComputerBDP Bureau de Piste (FR)BDR Battle Damage RepairBE Belgium (ISO Country Code)BEE Bureau Européen de l’Environnement (FR) BEI Banque Européenne d’Investissement (FR) / European Investment BankBELGOCONTROL

Belgian Operator of Air Traffic Management, both for airport and en-route traffic

BEM Boundary Estimate Message (SARP)

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BTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

BENELUX Belgium, Netherlands and Luxembourg BER Bite Error Rate *BERD Banque européenne pour la reconstruction et le développement (FR) / European

Bank for Reconstruction and Development (=EBRD)BFD Basic Flight Data messageBFL Blocked Flight Level AreaBFS (Z) Bundesanstalt für Flugsicherung (Zentralstelle) (DE)BFWG Budgetary and Financial Working GroupBG Bulgaria (ISO Country Code)BGD BackgroundBHCA Busy Hour Call AttemptBHL-System (Name of HR-registration system)BIAC Brussels International Airport Company BIF Deliver Implementation Benefits Faster (EATCHIP Adaptation)BIH Bureau International de l’Heure (FR)BIRD Banque Internationale pour la Reconstruction et le Développement (ONU) (FR) /

International Bank for Reconstruction and Development (=IBRD)BIRDTAM Bird hazard noTAM (NOTAM reporting bird hazard) *BIS Boundary Intermediate System *BIST Build-In Self Test (ODS)Bit Binary DigitBIT Built-In TestBITE Built-In Test Equipment *BM Basic MeasurementBMD Basic Measurement DisplayBMS Bureau Militaire de Standardisation (FR)BMUN Better Meet User Needs (EATCHIP Adaptation)BN Backbone Node (RMCDE/ RADNET) BNC BayoNet Locking Coax (connector)BNC Backbone Network Computer (RADNET)BNF Backus Naur FormBNL BeneluxBOI Biographical Oriented InterviewBOS Behaviour anchored Rating ScalesBP Business Plan *BPF Band Pass Filter *BPN Boundary Point of Entrybps bits per secondBPS Boundary Point Sector BPS BD Business Planning & Support Business Division (Eurocontrol)BPSK Binary Phase Shift Keying *BPSX Boundary Point Sector ExitBRA Bearing, Range and Altitude

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BTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

BRA Basic Rate AccessBrief BriefingBRITE Basic Research in Industrial Technologies for Europe = EURAMB-RNAV Basic Area Navigation / RNAV de baseBS Band Stop (ACS)BS BootStrap (RADNET Introduction - MAS)BSC Binary Synchronous Communications (CFMU)BSD Berkeley Software DistributionBSP Aircraft Parameter Downlink (service) BSS Best Signal Selection (ODS)BSU Beam Steering Unit *BT British TelecomBTC Basic Training CourseBTEC Business and Technician Education CouncilBTH (R) Beyond the Horizon (Radar)BUP BackupBVR Beyond Visual RangeBW Bandwidth *BWP Budget and Work Programme Planning / Planification du Budget et du

programme de travail (FR)BY Belarus (ISO Country Code)

CC ConsumablesC Band Frequency Band *C, C-, C++ Programming LanguageC/A Code Course / Acquisition Code *C/d Capacity demand ratioC/M Carrier-to Multi-Path Ratio *C/N Carrier-to-Noise RatioC/N0 Carrier-to-Noise-Density Ratio *C/S Call SignC102 (TSO) Helicopter Radar Approach, Issued 04/02/84 (RTCA DO-172, Issued 03/83)C104(TSO) Microwave Landing System (MLS) Receiving Equipment, Issued 06/82 (RTCA

DO-174, Issued 03/82)C105(TSO) Optional Display For Weather Radar, Issued 06/84 (RTCA DO-174, Issued 03/81)C110(TSO) Airborne Thunderstorm Detector, Issued 01/01/01,(RTCA DO-187, Issued 11/84C115(TSO) RNAV Equipment Using MultiSensor, Issued 06/86 (RTCA DO-187, Issued

11/84)C118(TSO) Airborne TCAS I Equipmen4 Issued 08/88 (RTCA DO-197, Issued 3/87)C119(TSO) Airborne TCAS II Equipment (RTCA DO-185, Issued 09/83)C120(TSO) RNAV Equipment Using OMEGA/VLF, Issued 01/88 (RTCA DO-185 issued 9/83)C2 level Security level in the United States Department of DefenseC2 Level Security Level in the United States Department of Defense

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CTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

C31d(TSO) High Frequency (HF) Communications Transmitting Equipment, Issued 04/84 (RTCA DO-163, Issued 03/76)

C32d(TSO) High Frequency (HF) Communications Receiving Equipment, Issued /83C34e(TSO) ILS Glide Slope Receive Equipment, Issued 01/88 (RCTA DO-192, Issued 07/86)C35d(TSO) Radio Marker Receiving Equipment, Issued 04/71 (RTCA DO-143, Issued 01/70)C36e(TSO) ILS Localizer Receiver Equipment, Issued 01/88 (RTCA) DO-195, Issued 11/86)C37d(TSO) VHF Comm transmitting Equipment, Issued 08181 (RTCA DO-157, Issued 08/81

(RTCA DO157, Issued 08/74)C38c(TSO) VHF Comm Receiving Equipment; Issued 08/81 (RTCA DO-156, Issued 08/74)C38d(TSO) Receiving Equipment, Issued 08/81 (RTCA DO186, Issued 1/84)C3CM(TSO) Command, Control and Communications CountermeasuresC3T Controller Tools and Transition Trials. See EVP.C40c(TSO) Airborne VOR Receiving Equipment, Issued 01/88 (RTCA DO-1996, Issued

11/86)C41d(TSO) Airborne ADF Equipment, Issued 05/86 (RTCA DO-179, Issued 05/82)C4I Command, Control, Communications, Computers and IntelligenceC50c(TSO) Audio Selector Panel and Amps, Issued 01/83 (RTCA DO-170, Issued 01/80)C57a(TSO) Headsets And Speakers, Issued 01/83 (RTCA DO-170, Issued 01/80)C58a Aircraft Microphones, Issued 01/83 (RTCA DO-170, Issued 01/80)C59 Selective Calling (SELCAL) Equipment, Issued 01/01 (RTCA DO-93, Issued 2/59)C60b RNAV Equipment Using LORAN -C, Issued 05/88 (RTCA DO-194, Issued 11/86)C63c Airborne Weather Radar, Issued 08/83 (RTCA DO-173 Issued 11/80)C65a Doppler Radar Air Speed Equipment, Issued 08/83 (RTCA DO-158, Issued

11/75)C66b Airborne DME (Distance Measuring Equipment), Issued 08/81 (RTCA DO-1514,

Issued 04/60)C67 Airborne Radar Altimeters, Issued 11/64 (RTCA DO-103, Issued 4/60)C68a Dead Reckoning Computer Equipment, Issued 08/83 (RTCA DO-158, Issued

10/75)C74e Airborne ATC Transponder Equipment, Issued 01/01 (RTCA DO 161A, Issued

05/76) C87a Low Range Radar Altimeters, Issued 01/01 (RTCA DO-155, Issued 01/74)C91a Emergency Locator Transmitter, Issued 04/85 (RTCA DO-183, Issued 5/83)C92b Ground Proximity Warning (GPWS) Equipment, 01/01 (RTCA DO-161A, Issued

05/76)C94a OMEGA Receiving Equipment, Issued 08/81 (RTCA DO-164A, Issued 09/79)CA Course to an Altitude (ARINC 424 Path Terminator)CA Computer AssociatesCA Civil AviationCA Conflict AlertCAA Civil Aviation Authority *CAAC Civil Air Authoriy - ChinaCAAS Computer Aided Approach SequencingCAAS Common AMHS Addressing SchemeCAC Centralised Approach Control

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CAD Computer Aided / Assisted DesignCAD/CAM Computer Aided Design / Computer Aided ManufacturingCADAS Computer Controlled Avionics Data Acquisition SystemCADF Centralised Airspace Data Function * (ECAC)CADIN Czech Automated Data Interchange NetworkCADS Combined Arrival and Departure Sequencing/Study (APATSI)CADS Computer aided Departure SystemCAE Computer Aided EngineeringCAEP Committee on Aviation [Environmental] Protection Emissions Operational

(Measures Working Group, WG/4) ; Commission on Aviation Environmental Protection (ICAO)

CAER Computer Assistance for En-Route ATCCAERAF Common American-European Reference ATN Facility / Dispositif ATN de

Référence commun pour les Etats-Unis et l’Europe (FR)CAFAC African Civil Aviation CommissionCAG Circulation Aérienne Générale (FR) / General Air Traffic * (=GAT)CAI Civil Aviation Inspection CAI Computer Assisted InputCAIIS Computer Aided Imagery Interpretation SystemCAIR Confidential Aviation Incident ReportingCAIRDE Civil Aviation Integrated Radar Display Equipment (IRE)CAL Computer Aided LearningCALLSGN CallsignCALM Computer Assisted Landing Management SystemCALS Computer-aided Acquisition and Logistic SupportCAM Computer Aided Manufacturing CAM Conflict Alert MessageCAM Circulation Aérienne Militaire (FR) CAMACA Commonly Agreed Methodology for Airport Airside Capacity AssessmentCAMI Civil Aeromedical InstituteCAMOS Central ARTAS Maintenance & Operational SupportCAMPS Computer Aided Message Processing SystemCAMUS Czech Automated Multi radar SystemCAN Proj. Croatian Air Navigation ProjectCANAC Computer Assisted National ATC Centre (B)CANSO Civil Air Navigation Services OrganisationCAO Computer Assisted OperationsCAOFA Co-ordination of Air Operations in the Forward AreaCAP Controller Access ParametersCAP Combat Air Patrol CAPAN Capacity Analyser CAPC Civil Aviation Planning Committee (NATO)CAPE Computer Assisted Planning ExperimentCAPSIN CAA Packet Switched Integrated Network (UK)

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CAR Caribbean Region *CARAT Computer-Aided Route Allocation ToolCARD CNS Applications – Research and DevelopmentCARD Conflict And Risk Display (ODID) CARE Co-operative Actions of ATM Research and Development in EurocontrolCARFE Conference on Airport and Route Facility Economics (ICAO) / Conference sur la

gestion des aéroports et des installations et services de route (FR)CARS Controller Acceptance Rating ScaleCART Classification And Regression TreesCAS Close Air SupportCAS Calculated Air SpeedCAS Collision Avoidance System CAS Calibrated Air SpeedCAS Computerised Assessment SystemCASA Computer Assisted Slot Allocation (CFMU)CASE Computer Aided Software EngineeringCase Case StudyCASI CFMU Aircraft Situation Image CASOR Civil Area Services Operations Room CAST Consequences of future ATM systems for air traffic controller Selection and

Training *CASTA Controller Associate for Strategic and Technical AdviceCat CategoryCAT Clear Air TurbulenceCAT Commercial Air TransportCAT Computer Assisted Teaching / TrainingCAT Continuous Attention TaskCAT x Category x Precision Approach (I *, II or III)CAT-1 Category OneCATCAS Copenhagen Air Traffic Control Automated System (DK)CATCO Chief ATC Operations CATIA TF on CNS/ATM Implementation AspectsCATSA Croatian air Traffic Services AuthorityCATSIM CAA Air Traffic Simulator (UK)C-ATSU Controlling ATS UnitCAUTRA Automated Computer System for Air Traffic / Coordinateur Automatique de Trafic

Aérien (FR)CAVOK Clouds and Visibility OKCb Cumulonimbus CB Central BatteryCBA Cross Border Area * CBA Cost Benefit Analysis *CBI Computer Based Instruction *

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CBN Common Backbone Network (subnetwork RAPNET = system of the national ATS, DFS = PSN)

CBPE Computer-Based Practical ExercisesCBPM Computer-Based Performance MeasureCBR Constant Bit RateCBS Cost/Benefit StudiesCBT Computer Based ToolCBT Computer Based Training * / Formation assistée par Ordinateur (FR)CC Contextual ConditionCCB Configuration Control BoardCCB Change Control BoardCCC Cellular CNS ConceptCCC Central Computer ComplexCCC Common Core Content (of ATC Training) *CCC Command, Control and CommunicationsCCCC Cross Channel Co-ordination CentreCCCI, C3I Command, Control, Communications and Intelligence (network)CCDS Code Callsign Distribution System CCE Commission des Communautés européennes ; Commission européenne (FR) /

Commission of the European Communities (=CEC) ; European Commission (EC)CCESC CEATS Chief Executive Standing ConferenceCCF Centralised Control Function (LATCC) CCFT Cold Cathode Fluorescent TubeCCG CEATS Co-ordination GroupCCG CEATS Co-ordination Group / Groupe de Coordination CEATS (FR)C-Channel Circuit Mode Channel *CCIP Code-Callsign Input Position (MADAP)CCIR International Consultative Committee for RADIOCCIS Closed Circuit Information SystemCCITT Consultative Committee on International Telegraph and Telephone (ITU) /

Comité Consultatif International Télégraphique et Téléphonique (UIT) (FR)CCL Code Callsign List CCL Croatia Control Ltd.CCM Centre de Contrôle Militaire (FR) / Military Control Centre (=MCC)CCM Computerized Control and Monitoring CCMG CEATS Civil/Military GroupCCMS Committee on the Challenges of Modern Society (NATO)CCP Configuration Control PlanCCP Circuit Switched Public Data Network CCR Centre de Contrôle Régional (FR) / Area Control Centre * CCR Cancel Contract Request CCS Code CallSignCCs Contractual Conditions CCTV Closed Circuit TeleVision

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CCW Counter-ClockwiseCD Conflict Display (ODID)CD Course to a DME Distance (ARINC 424 Path Terminator)CD Council Directive CD&A Conflict Detection and AvoidanceCD2 Common Digitizer 2CD-2 Transmission format for radar dataCDA Client Defined Area (CFMU)CDA Conflict Display Area. Coordination Approval / CoorDination Acceptance

(message)CDA Current Data Authority (ICAO)CDB Central Data BaseCDG Core Drafting Group (Selection)CDG Roissy Charles-de-Gaulle AirportCDI Coordination Information CDI Course Deviation IndicatorCDM Collaborate (Cooperative) Decision Making * / Prise de décision en Collaboration

(FR)CDMA Code Division Multiple Access *CDN Airspace Crossing Co-ordination MessageCDP Central Data ProcessingCDP Computer Diagnostics ProgramCDPS Central Data Processing SystemCDR Critical Design ReviewCDR Conditional Route *CDR Conflict Detection and ResolutionCDR Co-ordination Request (message) CDRL Contractual Deliverable Requirement ListCDRL Contracts Data Requirements List (MAS/DFS - ODS)CD-ROM Compact Disk / Read Only MemoryCDS Controller Display SupportCDSEPT Committee to Develop Standards for Educational and Psychological Testing of

The American Educational research Association, The American Psychological Association, and The National Council on Measurement in Education.

CDT Command Delivery TimeCDTI Cockpit Display of Traffic Information *CDTS Console Detailed Technical SpecificationCDU Control and Display UnitCE European Commission / Commission européenneCE Committee of Management (Eurocontrol) CE/R Enlarged Committee for Route ChargesCEAC Conférence Européenne de l'Aviation Civile (FR) (ECAC)CEAC Committee for European Airspace Co-ordination (NATO Group) renamed on

27.4.98 by the North Atlantic Council (=NATMC)

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CEATS Central European Air Traffic Services (Austria, Croatia, Czech Republic, Hungary, Italy, Slovakia and Slovenia [Bosnia, Herzegowina]) / Services de la Circulation Aérienne pour l’Europe Centrale (FR)

CEATS LSG Central European Air Traffic Services Legal Sub GroupCEATS UAC Central European Air Traffic Services Upper Airspace Control CentreCEATS WGMI CEATS Working Group on Management IssuesCEC Commission of the European Communities ; European Commission /

Commission des Communautés Européennes (=CCE) ; Commission européenne (FR)

CEE Communauté Economique Européenne (FR)CEE Centre Expérimental d'Eurocontrol (FR) / Eurocontrol Experimental Centre

(=EEC)CEECs Countries of Central and Eastern Europe ; Central and Eastern Europe Countries

/ Pays d’Europe centrale et orientale (=PECO) (FR)CEF Capacity Enhancement Function CEFA Co-operation for Environmentally Friendly Aviation (ERA, ACI, AEA, AECMA,

EBAA, EUROCAE)CEG CESC Executive GroupCE-GPS Complément européen au GPS / European GPS OverlayCEI Commission électrotechnique internationale (FR) / International Electrotechnical

Commission (=IEC)CELI Congressional Economic Leadership InstituteCEMA Chef d'Etat-Major de l'Armée (FR)CEMT Conférence Européenne des Ministres des Transports (FR) / European

Conference of Ministers of Transport (ECMT)CEN Committee for European NormalisationCENA Centre d'Etudes de la Navigation Aérienne (DGAC/DNA)CENELEC Committee for European Normalisation in the Electrotechnical FieldCEO Chief Executive OfficerCEP Circular Error Probable *CEPT European Conference for Posts and TelecommunicationsCER Cancel Emergency Mode Request CES Central and Eastern European States CES Capacity Enhancement Service (ATFM)CESAR Course Evaluation Sheets Analysis and ReportingCESC Chief Executive Standing ConferenceCESC Chief Executive Standing Conference (see CEO)CESNAC Centre d'Exploitation des Systèmes de la Navigation Aérienne Centraux (FR)CEU Central Executive Unit * (ATM / CFMU) / Organe exécutif central (OEC) (FR)CEU-E Central executive unit with Responsibility for Eastern Europe / Organe exécutif

central pour l’Europe de l’Est (=OEC-Est) (FR)CEU-W Central executive unit with Responsibility for Western Europe / Organe exécutif

central pour l’Europe Occidentale (=OEC-Ouest) (FR)CEV Centre d’essais en vol (FR) / Flight Testing CentreCEW Civil Engineering WorksCF Classification and Filtering

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CF Course to a Fix (ARINC 424 Path Terminator) CFAR Constant False Alarm Rate (or Regulation)CFB Central Flight plan BankCFCF Central Flow Control Facility (US)CFD Consistent Flight DataCFD Change to Flight Data MessageCFDS Central Flight Data Suite (PALLAS system)CFE Customer Furnished EquipmentCFEP Communications Front End ProcessorCFG CEATS Financial GroupCFI Customer Furnished InputsCFI Court of First Instance of the European CommunitiesCFIT Controlled Flight into TerrainCFL Cleared (Current) Flight Level *CFM EEC business area – support to ATFM (CFMU)CFM Central Flow Management (services) CFM Configuration ManagerCFMU (Eurocontrol) Central Flow Management Unit * ; Organisme central de gestion

des courants de trafic aérien (FR)CFMU Area States and Regions in the CFMU Operational AreaCFMUSC CFMU Steering CommitteeCFT Call for TenderCFTPD Central File of Transponder Performance Data (ECC)CFWG CEATS Financial Working GroupCGCB Common Ground Communications in the BalkansCGSO CEATS Group of Senior OfficialsCH Switzerland (ISO Country Code)CHA CharacterCHAID Chi Square Automatic Interaction DetectionCHAMP Collaborative and Harmonised ATCO Manpower TrainingChap. ChapterCHASEIT Collabotative Harmonisation of Architecture, System Engineering and Integration

Techniques (internal Eurocontrol Agency)CHG Change Message (IFPS)CHI Computer-Human Interface CHIEF Project Switzerland (CH), Italy (IT), Spain (ES), France (FR)CHIRP Confidential human Factors Incident Reporting ProgrammeCI Course to Intercept (ARINC 424 Path Terminator)CI Configuration Item *CIADN Croatian Integrated Aeronautical Data NetworkCIC Clearances and Information CommunicationsCICT Convergence and Implementation Coordination Team (renaming of SICT)CID Computer Interface Device

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CID Case Inspection DelayCIDIN Common ICAO Data Interchange NetworkCIEL Common Interface Exchange Language CIF Common Interchange FormatCILO Capacity Increase of Lower AirspaceCIM Customer Information Management CIMIC Civil-Military Interface CommitteeCIMIL Civil/Military Co-ordination * CIMSEL Civil Military SSR Environment Liaison Cell CINCAT Capacity Increase through Computer Assistance ToolsCINCENT Commander in Chief Central EuropeCINTIA Control of Inbound Trajectories of Individual AircraftCIO Conventional International OriginCIP Convergence and Implementation Programme * (EATCHIP)) / Programme de

Convergence et de mise en oeuvre / Réalisation (FR)CIP CFMU Implementation PlanCIPD Convergence and Implementation Programme Document * / Document

“Programme de Convergence et de mise en oeuvre” (FR)CIS Commonwealth of Independent States (States of former USSR) / Communauté

des Etats indépendants (=CEI) (FR)CIS Cooperative Independent Surveillance CIS Critical Incident StressCISCO Cisco Systems IncorporatedCISD Critical Incident Stress Debriefing *CISM Critical Incident Stress Management * (HRT)CISMO Centralised International System Management OrganisationCIT Critical Incidence Technique *CITRAC Common Interface for Trajectory CalculationCIU Cabin Interface UnitCIV Civil CJCE Cour de justice des Communautés européennes ; Cour de justice européenne

(FR) / Court of Justice of The European Communities (=CJEC, COJEC)CJEC Court of Justice of The European Communities (=CJEC, COJEC now European

Court of Justice) / Cour de justice des Communautés européennes ; Cour de justice européenne (=CJCE) (FR)

CJI Controller Justification Indicator CL ClearedCL Connectionless Mode Service *CLA OCM Clearance Echoback Message (message in the OCM Service)CLD DCL Clearance Message (message in the DCL Service)CLIMAX Multi-station carrier offset mode, with voting overrideCLNP Connection Less Network Protocol *CLNS Connection Less Network Service *CLTP Connection Less Transport Protocol *CLW Communications List Window

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CLX OCM Clearance MessageCM Configuration Managementcm CentimeterCM Configuration (Context) Management *CM Common Memory (CBN - CNG)CM Conformance Monitoring *CM Critical Milestone (MAS/DFS - ODS)CMA Context Management Application CMA Central Monitoring Agency (NAT)CMB Combined * (PSR and SSR)CMC Constant Mach ClimbCMC CIDIN Management CentreCMC Central Master ClockCMCES Comité Minstériel de Coordination Economique et Social (FR)CMCSG Civil and Military Co-ordination Sub-GroupCMG Crisis management GroupCMIC Civil Military Interface Standing Committee (New Convention) ; Comité

permanent d’interface civile et militaire (FR)CMID Communciations "middleware"CMIP Contract Management and Inspection ProceduresCMIS/CMIP Common Management Information Service / ProtocolCMM Capability Maturity ModelCMMC Common Maintenance Monitoring and Control CMMC Central Monitoring and Management CentreCMOS Complementary Metal Oxid Semiconductor CMP Configuration Management PlanCMS Common Modular Simulator (CMTP)CMS Central Message SwitchCMSA Carrier Sense Multiple Access (ICAO-ADS)CMT Core Management TeamCMT Critical Milestone Test (MAS/DFS - ODS)CMTF Equipe spéciale civile-militaire d’EASIE (FR)CMTP Common Medium Term Plan (Eurocontrol) / Plan commun à moyen terme

(=PCMT) (FR)CMU Communications Management Unit *CMV Coverage Measurement Volume *CN Change NoticeCN Corporate NetworkCN Permanent Commission for the safety of air navigationCN Common Network (INTNET/RADNET) CNACC Common National Area Control CentreCNATCC Common National Air Traffic Control Centre (Bulgaria)CNES Centre National d'Etudes Spatiales (FR) / French National Space Agency.

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CNG Common Network GroupCNL Cancel(lation) message (ICAO)CNLCOND ATFM Exceptional Condition Cancellation MessageCNLREG ATFM Regulation Cancellation MessageCNS Communication, Navigation and Surveillance *CNS Study Group of AlternatesCNS/ATM Communication, Navigation and Surveillance * / Air Traffic Management *CNS/ATM-1 Communication, Navigation and Surveillance * / Air Traffic Management Package

1CO Connection Mode Service *COBALT Common Objective Alignment Team (EATCHIP Adaptation) COBT Calculated Off Block Time (CFMU)COC Combat Operations Centre or ConceptCOCESNA Central American Corporation For Air Navigation Service *COCOS Computer Controlled SSR Code Assignment ProceduresCOD Common Medium-Term Plan Overview DocumentCODA Central Office of Delay Analysis / Service Central d’Analyse des Retards de

Trafic (FR)CODA Centre d'Opérations de Défense AérienneCODEC Coder/Decorder * (ACS)CODOI Centre d'Opérations de la Direction Opérationnelle Intégrée (FR)CoE Centre of ExpertiseCOF Change of Frequency COFA Comando Operacional Força Aérea (PT)COFAR Common Options for Airport RegionsCOFEE Checked Operational data FEEderCOG Coordination Group (meeting of the EANPG) (ICAO)COHO Coherent OscillatorCOHOR Association française des coordonnateurs d’aéroport (FR)COLL CollapseCOLOC Change of Location of CommandCoM EUROCONTROL Committee of ManagementCOM Circulation Opérationnelle Militaire (FR) / Operational Air Traffic * (=OAT)COM Communications (ICAO) COM Team Communications TeamCOM/DIV ICAO Communications Divisional MeetingCOM/MET Communications / Meteorology Divisional MeetingCOM/OPS Communications / OperationsCOMALF-E Commander of Airlift Forces – EuropeCOMED Combined Map and Electronic DisplayCOMG Communications Group COMIL Coordination Centre for Military Airspace Use (D)COMIL-1N ATS Coordination Centre for Military Airspace Utilisation - Phase 1 Network

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COMLAN COMmunication Local Area Network Comm-B Mode S downlink format DF20 or 21COMNAV Groupe de travail sur les Télécommunications et les installations de navigation

(CEAC)COMP Operating CompanyCOMPAS Computer Oriented Metering Planning and Advisory System (D)COMSEC Communications SecurityCOMT Communications TeamCOMUTA Comité des Usagers du Transport Aérien (FR)COMX Undefined Future Communication System (ODS)CON Contract Change NoteCONDAR Conflict Detection and ResolutionCONDOR Confidential Direct Occurence Report CONF ConflictCONFACP Conflict AcceptCONOPS Concept of Operations of Mode S in EuropeCONP Connection Oriented Network ProtocolCONS Connection-Oriented Network ServiceCONT ContinueCont’d ContinuedCONUS Continental United StatesCOO CoordinatorCOORD Co-ordinationCOP Co-ordination Point (SYSCO)COP Contingency Operations Plan COPG Common Operating Procedures GroupCOPP Connection Oriented Presentation ProtocolCOPS Common Operational Performance Specifications *COR CorrelateCORA Conflict Resolution AdvisorCORA1 Conflict Resolution Assistant 1CORBA Common Object Request Broker ArchitectureCorC++ Computer languageCORE Controlled Requirements ExpressionCORE CORE Requirements for ATM Working Positions *COROM Cognitive Competencies Model CORTA Cellule d'Organisation et de Régulation du Trafic Aérien (ATMC French

equivalent) (FR)CORUM Training and Human Resources Consultancy CompanyCOS Chief of StaffCOS Computer Operating StationCOSAAC Common Simulator to Assess ATMF Concepts COSAC Community System for Air Cargo

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COSIBA COmmon SImulations in the BAlkansCOSP Connection Oriented Session ProtocolCOSPAS Space system for the search of vessels in distress (translated from Russian)COST (European) Cooperation in the Field of Scientific and Technical ResearchCOSYNUS AIRBUS Training DatabaseCOTP Connection Oriented Transport Protocol COTS Commercial Off-The-Shelf (System)CP CWP Processor UnitCP Contact Person (Eurocontrol)CP Change ProposalCP Conflict Probe (PATs)CP Circular PolarisationCPA Closest Point of ApproachCPC Constant Pitch ClimbCPC Control and Processing CentreCPCs Certified Professional Controllers (US) CPD Continuous Professional Development *CPD CEATS Strategy, Planning and Development ProgrammeCPDLC Controller Pilot Data Link Communications *CPF Central Processing FacilityCPG CESC Preparation GroupCPI Californian Psychological InventoryCPL Commercial Pilots LicenseCPL Current Flight Plan *CPL Customer Priority Listing (NOG)CPR Conflict Prediction and ResolutionCPS Central Print Service (ODS) / Central Processing SystemCPS Characters Per Second CPT CockpitCPU Central Processing UnitCR Central RegionCR Course to a VOR Radial (ARINC 424 Path Terminator)CR(A)OC Central Region (Air) Operations CentreCRAF Computer Resolution Advisory FunctionCRAF Central Reservation Airspace FacilityCRAF Civil Reserve Air FleetCRAFS Civilian Request for Airspace and Flight Data System CRAM Conditional Route Availability Message *CRAM An AFTN message typeCRAMI Centro de Retransmisión Automática de Mensajes Integrado (ES) / Automatic

Messages Retransmission Integrated CenterCRATF Communications Requirements Analysis Task ForceCRC Control and Reporting Centre

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CRC Cyclic Redundancy Check *CRCO Central Route Charges Office (Eurocontrol)CRD Conflict Risk DisplayCRDA Converging Runway Display AidCRDS Colour Raster Scan DisplayCRDS CEATS Research & Development & Simulation CentreCREME Creating the EATCHIP Management Environment (EATCHIP Adaptation)CRF Central Repair Facility (RMCDE - MAS) CRM Cockpit / Crew Resource Management * CRM Collision Risk Modelling * (ICAO - ADS)CRM Co-ordination Revision MessageCRMCS Central RADNET Monitoring and Control System CRNA Centre Régional de la Navigation Aérienne (DGAC/DNA/SCTA) (FR)CRS Schéma de Réacheminement d’Urgence (FR)CRS Contingency Routing System CRS Controller Route Sequence (FPPS/DECADE)CRS Computerised Reservation SystemCRT Choice Reaction TimeCRT Cathode Ray Tube (ODS) CS CesiumCS Communcation SystemsCS Callsign or Contract SignatureCS CzechoslovakiaCSA Configuration Status AccountingCSAC Cooperative Structural Airspace Concept (ICAO)C-SAS Cranfield Situation Awareness ScaleCSC Computer Software Component (ODS)CSC Computer Sciences CorporationCSC Common Signalling ChannelCSCE Conférence sur la Sécurité et la Coopération en Europe (FR) / Conference on

Security and Cooperation in Europe (=CSCE)CSCI Computer Software Configuration Item (ODS)CSCW Computer Supported Co-operative Work CSD Concept and System Domain (EATMS)CSD Context Specification Document (EATMS)CSD Context and Scope DocumentCSDT Concept & Systems Development TeamCSDT Context and System Domain TeamCSEL Combat survivor evader locatorCSF Critical Success Factor (EATMS, CSD)CSFR Czech and Slovak Federal RepublicCSI Combined Safety InvestigationCSI Critical Success Indicator

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CSM Central Service Modules (RMCDE / RADNET)CSM BD Communication & Surveillance Management Business Division (Eurocontrol -

DAS Business Directorate)CSMA Carrier Sense Multiple AccessCSMA/CD Carrier Sense Multiple Access with Collision Detect * CSN Channel Sequence NumbersCSP Communication Service ProviderCSPD Unit CEATS Strategy, Planning and Development UnitCSPDU CEATS Strategic Planning & Development UnitCSR Cursor CSR Customer Service Requests (NOG - database for DPN operators)CSSR Conventional SSRCSU Computer Software Unit (ODS)CSU Control Sector UnitCSU-P Centre Supervisor (MADAP)CT Centre (select)CT Cooperative Tools (PATs)CT Core Tasks *CT Core Team CTA Cognitive Task Analysis *CTA Control Area *CTA Calculated Time of Arrival * (CFMU)CTAS Center-TRACON Automation SystemCTB Co-operative Tube BasedCTC Cancel All Contracts And Terminate Connection Request (ICAO)CTD Calculated time of DepartureCTF Communication Task Force (EATCHIP)CTG Common Training Group (of AISAP)CTI Collegiate Training Initiative (US)CTMO Central Air Traffic Flow Management Organisation (ICAO concept)CTO Computed Time Over (CFMU - CASA) CTO Calculated Time Over *CTOT Calculated Take Off Time * (CFMU)CTR Controller or Control Zone *CTRS Common Time Reference System (ODS)CTS Command Tracking StationsCTS Contractual Technical SpecificationCTWUEC Committe of Transport Workers’ Unions in the European Compmunity (now FST

Federation of Transport Workers’ Unions in the European Union = acronym formed from its French title)

CU Control UnitCUG Closed User GroupCUP CWP-Unit Processor CUP Computer Utility Program

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CUR Current Sector or Centre or Controller CV Curriculum VitaeCVFR Controlled Visual Flight RulesCVO Code Validity OverlapCVR Console Voice RecorderCVR Cockpit Voice RecorderCVSM Conventional Vertical Separation MinimumCW ClockwiseCWAR Continuous Wave Acquisition RadarCWBS Contract/Complete Work Breakdown Structure *CWBT Computer/Web-Based TrainingCWDPS Central Weather Data Processing System CWIR CFMU Generated What-If Re-routingCWP Controller Working Position (ODS)CWS Collision Warning SystemCY Cyprus (ISO Country Code)CYPRO Cyprus Project for ATC Improvements CYTA Cyprus Telecommunications AuthorityCZ Czech Republic (ISO Country Code)CZM Conventional Zero MeridianCZW Conflict Zoom Window (ODID)

DD DisplayD Danger AreaD DayD GermanyD&D Distress and DiversionD.O.T Department of TransportD/A Digital-to-AnalogD/L Data Link *DA Descent AdviserDA Dimensional AspectDA Decision AltitudeDA Direct Access (VCS) DA/H Decision Altitude Height *DAA Dynamic Airspace AllocationDAARWIN Distributed ATM Architecture based on RNAV, Workstations, Intelligent tools,

and NetworksDABS Discrete Address Beacon System (US)DAC Deployable ACCS ComponentDAC Direction Aviation CivileDAC Dynamic Air Traffic Control Test

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DTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

DACT Dissimilar Air Combat TrainingDAF Demand Adjustment Factors (CFMU)DAI Direct Access Intercom (VCS) DAISY Distributed Airport Information System (RUN)DAIW Danger Area Altitude Warning (or Area Proximity Warning)DAKOS Daten Kommunikations-System (DE) / Network for German areaDAKOS/CBN DAKOS Common Backbone Network (Germany)DAP Downlink Aircraft ParameterDAP EATM Directorate ATM Programmes (Eurocontrol)DAPs Downlinked Aircraft ParametersDARC Direct Access Radar ChannelDARGNE Study Group on Designators for ATS Routes, Geographical Points and

Navigation Elements (ICAO)DAS EATM Directorate ATM Strategies (Eurocontrol)DAS DME Based Azimuth SystemDAS Dual Attachment Station (ODS - FDDI) DASA, Dasa Deutsche AerospaceDASR Department of ATC Systems ResearchDAT Digital Audio TapeDAT Differential Aptitude TestDATAS Datalink and Transponder Analysis SystemD-ATIS Data Link Air Terminal Information ServiceDATMAS Danish Air Traffic Management Automated SystemDATS TF Delegation of ATS Task Force (ANT)D-ATSU Downstream Air Traffic Service Unit *DAVINCI Departure and Arrival Integrated Management System for Cooperative

Improvement of Airport Traffic FlowdB decibel DB Data Base *dB(HL) Decibels (Hearing Loss)DBC Data Bank COMECONDBE Data Bank EUROCONTROLdBi decibel with respect to an isotropic antennadBm decibel, referenced to 1 milliwattDBMS Data Base/Data Bank Management SystemDBP Deutsche Bundespost (Telecom) (DE)DBS Data Base SystemdBW decibel, referenced to 1 wattdBZ decibel, units of reflectivityDC Departure Clearance * (ICAO)DC, d.c. Direct Current / Device Control DCA Designated Control AreaDCA Director(ate) of Civil Aviation

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DCA Lietuvos Respublikos Civilines Aviacijos Direkcija (LT) / Lithuanian State Enterprise

DCA Department of Civil Aviation (various countries)DCAM Department Civil Aviation of MaltaDCC Data Country Code (CCITT X.121 Structure)DCC Détachement Civil de Coordination (FR)DCCVC Direct Controller-Controller Voice CommunicationDCDU Datalink Control and Display UnitDCE Data Circuit-terminating Equipment (RADNET / RMCDE)DCE Data Communications Equipment *DCE Distributed Computing EnvironmentDCF Discounted Cash Flow DCF77 German time standard, Digital Clock Function emitting on 77.5 kHz with callsign

DCFDCFEP Data (Digital) Communications Front End ProcessorDCIA Dependent Convergent Instrument ApproachesDCL Departure ClearanceDCM Downstream Clearance Message (Service)DCM Decomposition and Consolidation MatrixDCM Document Configuration Management (EATCHIP/EATMP)DCOS Deputy Chief of StaffDCP Display Control PanelDCPC Direct Controller Pilot Communication *DCPs Dedicated Personal ComputersDCR Design Certification Review (ODS) DCR Display Control Readout (EAS)DCRCO Director Central Route Charges OfficeDCS Data Communications SystemDCT Direct RoutingDCT-LB Direct Telephone – Local BatteryDCTS Digital Communications Terminal System (UACM)DCU Display Control UnitDCW Digital Chart of the WorldDCW-DEM Digital Chart of the World - Digital Elevation ModelDDA Downstream Data AuthorityDDB Dynamic Databank/Database *DDC Data Display Console DDD Detailed Design DocumentDDE Dynamic Data ExchangeDDL Data Description LanguageDDM Data Display MonitorDDP Distributed Data ProcessingDDP Declaration of Design Performance

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DDS Digital Data StorageDDU Display Drive UnitDE Germany (ISO Country Code)DEA Data Exchange Agreement Debrief Debriefing *DECADE DFS/EUROCONTROL Common ATC Development (ESCO)DECCA Hyperbolic Area Navigation System *DECnet Digital Equipment Network DED Director EATCHIP Development (in the former Agency structure) / Direction

Développement EATCHIP (FR)DEE Data Entry EquipmentDEEC Director of the Eurocontrol Experimental CentreDEFAMM Demonstration Facilities for Airport Movement Management (Alcatel) Deg Degrees (Radar Standard)DEG Data Environment Generator (ODS)DEGS Degraded Systems CapabilityDEI Directorate EATCHIP Implementation (in the former Agency structure) / Direction

Réalisation d’EATCHIP (FR)DEL Deliverable *DEL Delete DEM German MarksDEMETER Distance Measuring Equipment TracerDEMETER DME Metering (analysis tool for DME coverage / NAVSEP) Demo Demonstration *DEP Departure Message/ListDEP TC Departure Tactical ControllerDEPA Departure AirfieldDEPCOS Departure Coordination SystemDEP-VKL Departure Controller DER Departure End of the RunwayDERA Defense Evaluation and Research Agency (UK) (see QinetiQ)DERD Darstellung Extrahierter Radar Daten (DFS) (DE)DERD-X Display of Extracted Radar Data – Extension (-Mini Computer)DERD-X/XL Display of Extracted Radar Data – Expanded/Expanded with LANDES Draft Eurocontrol Standard DocumentDES Data Exchange SystemDESC DescendingDEST Destination Aerodrome (Airfield)DETF Data Exchange Trest Facility DETR Department of the Environment, Transport and the Regions (UK)DETRESFA the code word used to designate a distress phase *DEV Domain Executive ViewDF Direction Finding * or Display Field (VCS)

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DF Directorate Finance / Direction des FinancesDF Direct to a Fix (ARINC 424 Path Terminator)DFDAU Digital Flight Data Acquisition UnitDFIS Data Link Flight Information Service (ICAO)DFL Division Flight LevelDFL Dynamic Flight LegDFS Detailed Functional Specification (CBN - CNG) DFS German ATC Corporation (Deutsche Flugsicherung GmbH)DFTI Distance from Touchdown IndicatorDG Drafting GroupDG8 Drafting Group 8 (HUM, HRT….)DGAC Direction Générale de l'Aviation Civile (FR)DGAC Direction Générale de l'Aviation Civile (FR)DGCA Director General of Civil Aviation DGE Director General EurocontrolDG-GNSSTF Drafting Group of the Task Force on the allocation of GNSS costsDGNSS Differential Global Navigation Satellite System *DGOF Director General’s OfficeDGON Deutsches Gesellsehaft für Ortung und Navigation (DE) / German Institute for

NavigationD-GPS Differential Global Positioning System * (ICAO - ADS)DGS Director General Secretariat DGVII Directorate General of Transport / European CommissionDH Decision Height *DHMI Devlet Hava Meydanlari Isletmesi (TU) / State Agency for Airports and Air Traffic

Control DHP Direct Host ProcessorDHR Directorate Human ResourcesDHT Data Handling ToolsDi DetectabilityDIA Data Information Analysis Business Division (Eurocontrol - DAP Business

Directorate)DIADAM Distributed ATM Data ManagementDIANA Documento del Impacto de la Armonización / Integración de la Navegación

Aérea en Europa (ES)DIANS Director Institute of Air Navigation ServicesDIB Directory Information Base DICE Direct Course ErrorDID Direct Identification DataDIGEST Digital Exchange StandardsDIL Data Items ListDILCS Dedicated Intelligence Loop Circuits SystemDIN Deutsche Industrie NormDIRA Department for Interdisciplinary Relations of Aviation

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DIRCAM Direction de la Circulation Aérienne MilitaireDIRECT Dynamic Resectorisation and Route Coordination SystemDIS Data Displayed DIS Directorate Infrastructure ATC Systems and Support (Eurocontrol, EATMP) /

Direction “Infrastructure, Systèmes ATC et Appui” (FR)DIS/HUM ATM Human Resources Unit (also know as HUM unit)DIV DIVert(ing) or DIVergingDJD Design Justification DocumentDK DenmarkDL Data Link *DLA ATS message indicator for delay (ICAO)DLARD Data Link Application Requirements Document (Description) (ICAO)DLASD Data Link Application System DocumentDLCRD Data Link Communication Requirement DocumentDLE Data Link Entity *DLF Data Link Frame *DLH Deutsche Lufthansa (Germany) DLIC Data Link Initiation Capability (ICAO)DLL Data Link Layer *DLL Delay Locked Loop *DLPU Data Link Processing (Processor) UnitDLR Deutsches Zentrum für Luft- und Raumfahrt e.V. / German Aerospace Centre

(formerly the ‘German Aerospace Research Institute)DLS Data Link SplitterDLW Departure List Window (ODID)DM Departure Manager * (PATs)DMA Decision Making Aids DMA Divergence Monitoring and AlertDMA Direct Memory Access DMA Defense Mapping Agency * DMAN Departure Manager *DMAS Director Maastricht Control CentreDMC Detachment of Military Coordinators (FR)DME Distance Measuring Equipment *DML Data Manipulation LanguageDMP Documentation Management PlanDMS Database Management SystemDMSS Development Maintenance and Support ServiceDNA Direction de la Navigation Aérienne (DGAC) (FR)DNAs ECAC Directors of Air NavigationDNIC Data Network Identification Codes (CCITT X.121 Structure)DNS Digital Network SignallingDOC Designated Operational Coverage

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DOC Direct Operating CostDOC Document (ICAO)DoD Department of Defence (US)DoD MIL Department of Defence - militaryDODAR Diagnosis, Options, Decision, Assessment and RevisionDOF Date of Flight (CFMU) DOI Domain Of InterestDOI Department of IndustryDOP Dilution of Precision *DOP Daily Operations PlanDoR Domain of ResponsibilityDORA Directorate Operational Research and Analysis (UK)DOS Disk Operating SystemDOT Department of TransportationD-OTIS Data Link Operational Terminal Information ServiceDOTS Dynamic Ocean Tracking System *DOVE Data Link Operational Validation ExerciseDP Data ProcessingDP Data ProcessingDP Discussion Paper DP&P Data Processing and PeripheralsDPA Distinguishing Path Attribute *DPC Defence Planning Committee DPDG Diplomatic and Protocol Drafting GroupDPE Digital Plot Extractordpi dots per inchDPL Displayed Flight PlanDPL Deputy Project LeaderDPL Duplicate PlanDPM Delta-Plane Motorisé (FR)DPS Distributed Processing System DPS Data Processing SystemDPS Detailed Production SpecificationDPSADD-TF Data Processing Systems Architecture Description Document Task Force (ATD)DPSK Differential Phase Shift KeyingDPT Dynamic Time-based PlanningDQTS Data Quality Tool SetDR Disaster RecoveryDR Dead Reckoning *DRA Defence Research Agency (UK)DRACAS Data Reporting And Corrective Action SystemDRAM Dynamic Random Access MemoryDRC Dynamic Route Change

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DRC Defence Review CommitteeDRC Data RecordingDRCP Data Reduction Computer Program DRDF Digital Readout Direction FinderDRF Document Review FormDRF Departure Flow RegulationDRH Direction des Ressources Humaines (=DHR) (FR)DRMS Distance Root Mean Square *DRUG Dutch Radars Users Group (NL-Eurocontrol)DRUM Diagnostic Recorder for Usability MeasurementD-RVR Data Link Runway Visual RangeDS Data SourceDSA Directory System AgentDSA Director(ate) Safety, Airspace, Airports and Information Services (Eurocontrol,

EATMP) / Direction “Sécurité, Espace aérien, Aéroports et Services d’information” (FR)

DSAP Destination Service Access Point (RMCDE / RADNET)DSB Double Side Band (8.33 User Guide) DSC Downstream ClearanceDSCVHF Digital Selective Calling - Very High FrequencyDSF Distribution and Switching FacilityDSI Data Source Interface (ODS)DSI Denmark Sweden Interface *DSM Departure Suspense MessageDSP Domain Specific Part *DSP Datalink Status PanelDSP Digital Signal Processor *DSS Data Systems Specialist DSS Decision Support SystemDSS Direct SubsystemDSS Direct Sequence spread Spectrum DSS1 Digital Subscriber Signalling No1DST Decision Support ToolsDST Direct Support Task *DSU Data-Source Selector UnitDSU Direct Support UnitDT&E Development, Test and EvaluationDTE Data Terminal Equipment * (RMCDE)DTED Digital Terrain Evaluation Data (ECAC)DTED Digital Terrain Elevation DataDTF Data Link Test Facility (ICAO)DTMF Dual Tone Multifrequence (code) DTN Data Transport Network

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DTP Desk Top PublishingDTS Data Terminal SetDTS Data Transmission SystemDTU Data Transmission Unit (VCS)DTVOR Doppler Terminal VORDU Digital User SignallingDU Display UnitDUA Directory User AgentDUA Dedicated User AreaDUAT Direct User Access TerminalDUAU Data Update and Access Unit DUEV Daten Übertragungs- und Verteiler-System (DE)DÜS DüsseldorfDÜV Datenübertragungs und Verteiler System (DE)DVAS Documentation and Visual Aids SpecialistDVI Direct Voice InputDVO Direct Voice OutputDVOR Distance VORDVOR Doppler VORDVP Development and Verification Platform (part of EGNOS)DWP Departure WaypointDYNAV Dynamic Route AvailabilityDZ Algeria (ISO Country Code)

EE SpainE+M signallingEA Europe AirsportsEAA European Aviation AgencyEAC East Assistant ControllerEACAC Evolutionary AIR Ground Cooperative ATM ConceptEACG European ATFM Consultation GroupEACNSISG EATCHIP Architecture and CNS Infrastructure Sub-GroupEAD European AIS Database / Base de données AIS européenneEAD Earliest Arrival Date EAD BUP EAD Backup SiteEAD SF EAD Surveillance FunctionEAD SGR EAD Sub-GroupEAD WP EAD Working PositionEADCOS EAD Co-ordination SubgroupEADI Electronic Attitude Director IndicatorEAD-ONL EAD Online EnvironmentEAD-TDS EAD Test and Development Environment

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ETip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

EADTF European AIS Database Task ForceEAD-TRG EAD Training EnvironmentEAG Event Analysis GroupEAG European ATFM GroupEAG European ATFM Consultation Group and its two Subgroups (Operations and

Systems Sub-Group) / Groupe ATFM européen (FR)EAIP Electronic AIPEAIP-TF Electronic Aeronautical Information Publication (Task Force)EAM Eurocontrol Airspace ModelEAMG (EATCHIP) European ATFM Management Group (supervision of the CFMU)EAMG SSG EAMG Systems Sub-GroupEAN European ATSO Network EANPG European Air Navigation Planning Group * (ICAO)EAO Enseignement Assisté par Ordinateur (FR) (=CBT)EAP EATCHIP Alignment ProcessEAPM ECAC Airspace Planning ManualEARTS En-Route Automated Radar Tracking SystemEAS European AIS SystemEAS EUROCONTROL Advisory Service / Division “Services consultatifs d’Eurocontrol

(FR)EASA European Aviation Safety Authority ; Autorité européenne de la sécurité aérienne

(FR)EASG EASIE ATM Support GroupEASIE Enhanced Air Traffic Management and Mode S Implementation in Europe * EAT Expected / Estimated Approach Time *EATCFMU European Air Traffic Central Flow Management UnitEATCHIP European Air Traffic Control Harmonisation and Integration Programme (see

EATMP) ; Programme européen d’harmonisation et d’intégration du contrôle de la circulation aérienne (FR)

EATCHIP LO EATCHIP Liaison Officer EATCHIP OCD

Operational Concept Document

EATCOS ECAC TF on the Integration of European ATC SystemsEATF EATMS Architecture Task ForceEATM European Air Traffic Management (Eurocontrol)EATMP European Air Traffic Management Programme (former EATCHIP) / Programme

Européen de gestion de la Circulation aérienne (FR)EATMS European Air Traffic Management System *EATN Experimental Aeronautical Telecommunication Network (RADNET)EATN European ATNEAWDG EATMS Architecture Workshop Drafting GroupEB Executive Board (of the EUROCONTROL Agency)EBAA European Business Aviation Association EBCDIC Extended Binary Coded Decimal Interchange CodeEBP Emergency Bypass Processor (ODS)

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EBRD European Bank of Reconstruction and Development (=BERD)EC European CommissionEC European CommunityEC European CommunitiesEC Executive Controller (also referred to as ‘Radar Controller’)EC Eyes closedECA Executive Controller AssistantECAC European Civil Aviation Conference *ECAC area European Civil Aviation Conference Area *ECAC Reference Levels

European Civil Aviation Conference Area Reference Levels *

ECAC Strategy

European Civil Aviation Conference Strategy *

ECAF ECAC Centralised Airspace Facility ECAM Electronic Centralised Aircraft Monitoring (airbone display)ECARDA European Coherent Approach to Research and Technological Development for

ATMECBAG EATCHIP Cost-Benefit Advisory GroupECC EATCHIP Co-ordination CommitteeECC-AIRS European Co-ordination Centre for Aircraft Incident Reporting Systems (EC)ECCG Experimental Centre Consultation Group / Groupe Consultatif sur le Centre

expérimental (FR)eCE enlarged Committee for Route ChargesECEF Earth-Centered-Earth-Fixed *ECG EATMP Communication GatewayECHO EATCHIP CNS/ATM Holistic Model Using RM-ODPECHQ Eurocontrol Headquarters ECI Every-Citizen-InterfaceECI EAD Client InterfaceECIP European Convergence and Implementation Plan / Plan européen de

convergence et de réalisation (FR)ECIPD Document ECIPECIT EAD Client Interface TerminalECIT-SDR ECIT System Design ReviewECIV ECI Validation SuiteECM Executive Control MessageECM Extended Callsign MenuECM Electronic Counter Measure / MessageECM EATCHIP Co-ordination MeetingECMA European Computer Manufacturers' AssociationECMT European Conference of Ministers of TransporteCN enlarged Commission ECODA Enhanced Central Office for Delay AnalysisECP Engineering Change Proposal

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ECP Expedite Clearance ProcedureECR Event Contract Request (ICAO)ECRG Experimental Centre Review GroupECRSG EATMS Concept & Requirements Sub-GroupECSC European Conference on Satellite CommunicationsECSTF ETFMS Communications and Systems Task ForceECT European Coordination TeamECTF EATMS Concept Task Force ECU European Currency Unit / Unité de compte européenne (FR)ED Error DetailEd(s) Editor(s)ED50 European Datum 1950 (Geodetic system)ED70 European Datum 1970 (Geodetic system)ED87 European Datum 1987 (Geodetic system)EDA Electro-Dermal Activity measurementEDAG European Delay Analysis System Advisory GroupEDAS European Delay Analysis SystemEDB Environmental Data Base EDD Electronic Data DisplayEDD / TID EDD / Touch Input DeviceEDDF Environmental Data Processing and Distribution FunctionEDDUS EDD Update SystemEDD-VKL EDD-controller/planner-controllerEDI Electronic Data Interchange / Echange de Données Informatisés (FR)EDIFACT Electrical Data Interface for Administration Commerce and Transport (ODS)EDISOFT Empresa de Serviços e Desenvolvimento de Software, S.A. (PT)EDMS Engineering Data Management System (ODS - MAS)EDP Electronic Data Processing EDP Environmental Data ProcessingEDPD Environmental Data Processing and DistributionEDS Explosives Detection SystemEDV Elektronische Daten Verarbeitung (DE) (=EDP)EE Estonia (ISO Country Code)EEB European Environmental BureauEEC EUROCONTROL Experimental Centre (FR)EEC European Economic CommunityEEC/BSC Eurocontrol Experimental Centre / Building Steering Committee (decision DG)EEE Etudes, Essais and Experimentation EEG ElectroencephalogramEEI Essential Elements of InformationEEIG European Economic Interest GroupEEPROM Electrically Erasable Programmable Read-Only Memory (EEC)EES European Eastern States

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EET Estimated Elapsed Time *EFDFMG EUROCONTROL Flow Data and Flow Management GroupeFDP European Flight Data ProcessingEFIS Electronic Flight Instrument SystemEFL Entry Flight Level *EFL Estimated Flight Level EFMS Experimental Flight Management System * EFP España-France-Portugal Plan (co-operation agreement)EFPD Extended Flight Plan DescriptionEFPM Extended Flight Plan MessageEFPS External Front Processing System (PALLAS system)EFQM European Foundation for Quality Management / Fondation européenne pour le

management par la qualité (FR)EFR Extended Flight Rules (FREER)EFS Electronic Flight StripEFS Extended Flight StoreEFTA European Free Trade AssociationEG Egypt (ISO Country Code)EGA Enhanced Graphics Adapter EGATCM Eurocontrol Guild of Air Traffic Controllers - MaastrichtEGATS EUROCONTROL Guild of Air Traffic ServicesEGD EATMP Generic DocumentEGERIA Engineering Group for European Integration ATCEGIP European Gateway for INO ProvisionEGNOS European Geostationary Overlay Service * (SNA) / Service complémentaire

géostationnaire européen de navigation (FR)EGNOS-EM European Global Navigation Overlay Service – East MediterraneanEGPWS Enhanced Ground Proximity Warning SystemEGU European Gliding UnionEHA European Helicopter AssociationEHD Danger Area * (followed by identification) [NL]EHF Extremely High Frequencies *EHQ Eurocontrol Headquarters EHR Restricted Area * (followed by identification) [NL]EHSI Electronic Horizontal Situation IndicatorEHT Extemely High TensionEIA Electronic Industries AssociationEIAP European Integrated Aeronautics ProgrammeEIB European Investment Bank / Banque Européenne d’Investissement (FR)EIF Extended Interface FunctionEIIC Electronics Installation and Implementation CentreEIPA European Institute of Public AdministrationEIRP Effective / Equivalent Isotropic Radiated Power *

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EIS EUROCONTROL Implementation SupportEIS Environmental Information Sampling EL Electro-LuminescentEL/KYB Eectro-Luminescent KeyboardELEV Elevation * (environment)ELINT Electronic IntelligenceELM Extended Length Message *ELS Electronic Library Service (System)ELS Emergency Landing StripELS-OP TF Mode S Elementary Surveillance - Operational IntroductionELT Emergency Locator TransmitterELVIRA Extremely Low Visibility Instrument Rotorcraft ApproachesELW Extended Label WindowEM Error MechanismE-mail Electronic mail service EMAS Environmental Management Audit System (Hamburg Airport)EMB Executive Management Board EMC ElectroMagnetic Compatibility EMC EATMP Management CommitteeEMCC EATMP Management Coordination CommitteeEMCON Emission ControlEMCR(ATC) Requirements for European Class 3 Medical Certification of Air Traffic ControllersEME Eurocontrol Military Expert / Expert Militaire d’Eurocontrol (FR)EMERALD EMErging and Activities of reLevance to ATM concept Definition (European

Commission)EMEU EATMP Military Expert UnitEMF Exercise Management Facility (Simulator)EMG ElectroMyoGram EMG Emergency (ICAO)EMG EAD Management GroupEMH EATMP Management HandbookEMI Electromagnetic InterferenceEMIRA Eurocontrol Maastricht Information Retriever ApplicationEMIS EATCHIP Management Information SystemEMM Extractor Monitoring Message *EMOSIA European Model for ATM Strategic Investment AnalysisEMOTION 7 European Maintenance Of TCAS II Logic Version 7.0EMP ElectroMagnetic PulseEMS European Mobile System EMS EATCHIP Management SupportEMSO EATCHIP Management Support Organisation EMSS European Mobile Satellite ServicesEMT Eye-Movement tracking

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EMTO ECAC Medium Term Objectives Group (to deal with ‘Constraints to Growth’EMU Extended Memory UnitEMU European Monetary UnionEN Euro Norm (CEE)EN EnablerENA Escuela Nacional de Aeronáutica (ES)ENAC Ecole Nationale de l’Aviation Civile (FR)ENAC Ecole Nationale de l'Aviation Civile (FR)ENAV Ente Nazionale di Assistenza al Volo (IT)ENG EngineeringENHANCE EuropeaN Harmonised Aircraft Noise Control modelling Environment (NATS-

DORA)ENJJPT Euro-NATO Joint Jet Pilot Training ENNA Etablissement National de la Navigation Aérienne (FR)ENOC European Network Operating(tion) Concept ENPRM Eurocontrol Notice of Proposed Rule-Making ; Avis européen de proposition de

réglementation (FR)ENR En-route * (ICAO)ENRI Electronic Navigation Research Institute (US - ADS)ENV EnvironmentENV Environment System (CFMU)EO Executive Objectives (EATMS - CSD)EO Eyes OpenEOBT Estimated Off Block Time * (CFMU)EOC Edge Of Coverage EOCD EATMS Operational Concept DocumentEODP EATMS Options Discussion PaperEOG ElectroOculoGramEOIG EGNOS Operators and Infrastructure Group – the ATS providers in the states

formerly known as the IKD StatesEOLIA European Pre-operational Datalink Applications ProjectEONS Eurocontrol Open and Generic Graphic System / Système graphique ouvert et

générique d’Eurocontrol (FR)EOQ European Organisation for QualityEP Expert PanelEPAC EATCHIP Policy and Allocation Committee EPAC Eurocontrol Programme Appraisal Committee EPB EATCHIP Project Board EPC Enhanced Planning and Coordination function (project of MDP phase I)EPCM Enhanced Planning Control MessageEPD EATCHIP Planning Division (Eurocontrol)EPG EASIE Policy GroupEPHOS European Handbook for Open Systems

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EPIC European Programme for the Implementation of a Common geodetic reference frame (WGS 84)

EPIC Extended PCM Interface Controller (ACS)EPIC Emergency Procedures Inforamtion CentreEPM EATCHIP Planning MethodEPM Electromagnetic Protection ModificationEPMB EASIE Programme Management BoardEPR, DGS/EPR

External and Public Relations / Relations extérieures et communication (FR)

EPROM Erasable-Programmable Read-Only-Memory EPRT External Processing Response Time EPS Exercise Preparation Suite (Simulator)EPSU European Public Service UnionEPT Estimated Parking Time *EPT Eurocontrol English language Placement TestEQPM Equipment and SystemsEqpt EquipmentEQUATOR Environment for Qualitative Temporal Reasoning (AI)Equipe R Perception des redevances de route au titre des accords bilatéraux passés avec

des Etats non contractants (FR) / Collection of air navigation charges under bilateral agreements with non-Contracting states (= R Team)

ER En-Route *ER TC En-Route Tactical Controller ERA European Regional Airlines OrganisationERABIS (Swedish) Route Invoicing SystemERATO En Route Air Traffic OrganiserERCG External Relations Coordination GroupERCS EXM Resistant Communications SystemERD End Routing Domain *ERDF European Regional Development Fund / Fonds européen de développement

régional (FR) (=FEDER)ERFA Conference on the Economics of Route Air Navigation Facilities and Airports

(ICAO) / Conférence sur l’économie des installations et services de navigation aérienne de route et des aéroports (FR)

ERIP EAD Remote Interface PackageERIS EATMP Referenced Industry-based Simulation & Trials PlatformERIS EATMP Reference Industry-Based ATM Simulation and Trials PlatformERM En-Route Metering ERM Estimate Revision MessageERN Earth Referenced Navigation *ERNP European Radio Navigation Plan (European Commission)ERP Extracted Route Points (FPPS/DECADE)ERP Effective Radiated Power *ERP Event-Related PotentialER-PC En-Route Planning Controller

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ERS Extracted Route SequenceERS Early Retirment SchemeERSS Eurocontrol Radar Surveillance Standard ERT Execution Reference TimeERV ECM Resistant VoiceES Eurocontrol Standard * (Document)ES Emergency System (ODS)ES End Service / System *ES Spain (ISO Country Code)ESA Electronically Scanned ArrayESA European Space Agency (=ASE) ESARR Eurocontrol Safety Regulatory requirementsESARR 5 EUROCONTROL Safety Regulatory Requirement for ATM Services' Personnel

(SRC)ESC BD European ATM Systems & Convergence Business Division (Eurocontrol)ESCAPE EUROCONTROL Simulation Capability And Platform for Experimentation * /

Potentiel de simulation et plate-forme d’expérimentation d’Eurocontrol (FR)ESCAT Emergency Security Control of Air TrafficESCO Executive Support and Coordination Office ESDF Environmental Static Data Processing and Distribution FunctionESDI Enhanced Small-Device Interface ESE Equivalent Spherical ErrorESF Essential Support FacilitiesESI EAD System InterfaceESL Entry Sequence ListESME Enhanced Simulation Modelling EnvironmentESP En-route Spacing (Program) ESPRIT European Strategic Programme for Research and Development in Information

TechnologyESRS EUROCONTROL Standard Document for Radar Surveillance in En-Route and

Major Terminal AreaEST Boundary Estimate MessageEST Estimate message designatorEST ATC EstimateESTB EGNOS System Test Bed ESTEC European Space Technology and Research CentreESTEEM Elaboration of a Strategy for the Transition from EATCHIP phase III to the EATMSESUP Eurocat Support SystemET Executive TaskET (Shuttle) External TankET Error TypeETA Estimated Time of Arrival * / Estimating ArrivalETD Estimated Time of DepartureETE Estimated Time of Entry

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ETFDD Electronic Tabular Flight Data DisplayETFDM Electronic Tabular Flight Data MessageETFMS Enhanced Tactical Flow Management System / Système amélioré de gestion

tactique des courants de trafic (FR)ETG European GNSS Tripartite Group (European Community, Eurocontrol, European

Space Agency)ETL Extended Track LabelETMA Extended Terminal Manoeuvring AreaETMS Enhanced Air Traffic Management SystemETO Estimated Time Over * (significant point)ETOPS Extended Range Twin Engined OperationsETOT Estimated Take Off Time *ETR ETSI Technical Report ETRAS Easy Transported Radar Analysis SystemETREM Eurocontrol Technical Requirements Model (EAS)ETRF European Terrestrial Reference FrameETS Early Termination of ServiceETSI European Telecommunications Standard(isation) InstituteETX Estimated Time of ExitEU Electronic UnitEU European UnionEU-ACA European Union Airport Coordinators Association (represent more than 120

airports throughout the European Union)EUCARF European Central Altitude Reservation Facility EUM, EUMED, Eumed

Europe Mediterranean Air navigation Region (ICAO)

EUR EuroEUR EuropeanEUR ANP Air Navigation Plan in Europe (ICAO Region)EUR ATN European ATNEUR RAN European Regional Air Navigation (Meeting)EUR RASC Regional AIS System Centre inside the ICAO EUR regionEUR Region European Region * (ICAO)EURACA European Air Carrier Assembly EURAM European Research in Advanced Materials = BRITEEURAP European Regional ATS Packet Switching Network (DAKOS+CBN)EURATN European experimental Aeronautical Telecommunications Network / Réseau

européen de télécommunications aéronautiques (FR)EURET European Research for Transport (European Communities) ; Specific Resource

and Technological Development Programme in the Field of TransportEURO EurocontrolEuro 88 States and Regions in the CRCO Are in 1988EURO/5-States RSG

Eurocontrol/5-States Route Structure Group

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EUROCAE European Organisation for Civil Aviation Equipment manufacturers / Organisation européenne pour l’équipement électronique de l’aviation civile (FR)

EUROCAEDS European Organisation for Civil Aviation EquipmentEUROCONTROL

European Organisation for the Safety of Air Navigation *

EUROPILOTE European Organisation of Airline Pilots AssociationsEUROSIM Eurocontrol Simulator at the Institute of Air Navigation Services EUROSTAT Statistical Office of the European CommunitiesEUR-RAN European Regional Air NavigationEUTELSAT European Telecommunications Satellite OrganisationEV Earned ValueEVAS EATMS Validation StrategyEVP EATMP Validation Project * (formerly C3T)EVP EATMP Validation PlatformEVS Enhanced Visual SystemEVS Evaluation System (ODS)EWA Error Warning AreaEWAN EGNOS Wide Area NetworkEWBS EATCHIP Work Breakdown StructureEWG Executive Working Group EWP EATCHIP Work ProgrammeEWP EATMP Work ProgrammeEWP Enhanced Working PositionEWPA EATCHIP Work Programme AdaptationEWPD EATMP Work Programme DocumentEWPD EATCHIP Work Programme Document *EWS Experimental Workstation SimulatorEWS Early Warning SystemEWT EATMS Working Team (CSD)Ex Exercisesex GDR ex German Democratic Republic EXC Executive ControllerEXCOND ATFM Exceptional Condition Notification MessageEXP ExpectedEXPLT ExtrapolateEXSPEC Exercise Specificationextra EUR RASC

Regional AIS System Centre outside the ICAO EUR region

FF FranceF&CM Flow And Capacity ManagementF/G ForegroundF18 Field 18 of Flight Plan

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FTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

FA Course from a Fix to an Altitude (ARINC 424 Path Terminator)FAA Federal Aviation AuthorityFAA Federal Aviation Administration (US)FAA-STD-042 National Airspace System Open System Interconnection Naming and Addressing

(ISO Standards for Open Systems Interconnection and Data Communication published by ISO, International Standards Organisation).

FAATC FAA Test CentreFAC Flight Augmentation ComputerFAC Final Approach Course (same as IS) FACC Feature and Attribute Coding CatalogueFACET Fast ACC Capacity Evaluation ToolFACF Final Approach Course FixFacil FacilitationFACTOR Development of Functional Concepts from the EATMS Operational RequirementsFACTS Future Area Control Tools SupportFADE Federal Aviation Administration's (FAA) Airline Data ExchangeFADEC Full Authority Digital Engine ControlFAF Final Approach Fix *FAI Fédération Aéronautique Internationale (FR)FAN False Alarm Normaliser (radar) FANOMOS Flight track and Aircraft NOise MOnitoring System (RMCDE)FANS Future Air Navigation Systems * (ICAO)FANS-1 Future Air Navigation Systems 1, an initial operational datalink package for the

South PacificFANS-A Future Air Navigation Systems A, an initial operational datalink package for

AIRBUS aircraftFANSTIC Future ATS and New Systems Impacts on CockpitFAP Future ATM Profile (simulation Brétigny) / Profil ATM futur (FR)FAR False Alarm RateFAR Federal Aviation RegulationsFARAWAY Fusion of Radar and ADS Data through two WAY datalinkFAS Final Approach Segment *FAS Flight level Allocation System FASID Facilities And Services Implementation Document (ICAO)FASTER Future AO-ATM-Airports Synergy Towards Enhanced OperationsFAT Force Aérienne Tactique (FR)FAT Factory Acceptance Test FATA Force Aérienne Tactique Alliée (FR) (OTAN) / Allied Tactical Air Force (=ATAF)FATAC French Air Force Tactical Air CommandFATCA Federal Air Traffic Control Authority (Yugoslavia)FATMI Finnish Air Traffic Management IntegrationFATUREC Federation of Air Transport User Representatives in the EECFAWP Final Approach WaypointFAX Facsimile

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FB FallBackFBS Fall-Back SystemFBU Flight Briefing UnitFC Feeder ControllerFC Formalised ClearancesFC Frequency ChangeFC Course from a Fix to a Distance (ARINC 424 Path Terminator)FCA Funtional Configuration Audit (MAS - ODS)FCB Frequency Coordinating Body FCC Federal Committee for CommunicationsFCC Flight Control Computer FCC Flow Co-ordination CellFCD Flow Control DecisionFCDS Frequency Channel and Distribution SystemFCE Flow Control ExecutionFCG Financial Consultation Group (AFG)FCM Flow and Capacity ManagementFCM Flight Confirmation Message (CFMU)FCNP Fire Control and Navigation PanelFCO Future Concepts (EATCHIP domain)FCOM Flight Crew Operating ManualFCOT Future Concepts Team FCR Flow Control RequestFCS Frame Check Sequence (RMCDE)FCTL Flow Control *Fd Doppler FrequencyFD Flight DirectorFD Flight Data *FD Course from a Fix to a DME Distance (ARINC 424 Path Terminator)FDA Flight Data AssistantFDB Full Data BlockFDDI Fiber Distributed Data Interface (LAN - RMCDE / MAS)FDDI Fiberoptical Digital Data Interchange FDE Flight Data ExchangeFDE-ICD Flight Data Entry – Interface Control DocumentFDFM Flight Data and Flow ManagementFDFMG Flight Data and Flow Management Group (CFMU)FDG Flight plan Data GeneratorFDG Flight Data Group (MAS)FDM Flight Data ManagementFDMA Frequency Division Multiple Access *FDMAS Flight Data Management Automated System (It. ATFM)FDMD Flight Data Management and Distribution

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FDMS Flight Data Management SystemFDO Flight Data Operations Division * (CFMU) / Division “Exploitation des données de

vol”FDP Flight Data Processing / Flight-plan Data ProcessorFDPD Flight Data Processing and DistributionFDPE-TF Flight Plan Related Data Exchange Task ForceFDPI Flight Data Processing Inter-operability (formerly eFDP – European Flight Data

Processing System)FDPS Flight Data Processing System * / Système de traitement des données de vol

(FR)FDR Flight Data Recorder (CDB / CFMU)FDS Flight Data SectionFDSU Flight Data Storage UnitFE tones injected by the Far End switchFEAST First European ATCO Selection Test Package *FEATS Future European Air Traffic Management Systems (ICAO)FEC Forward Error Correction *FED Fonds européen de développement FEDER Fonds européen de développement régional (= ERDF)FEP Front End ProcessorFES Fixed Earth StationFEV1/FVC Forced Expiratory Volume (in one second) / Forced Vital CapacityFFA Functional Failure Analysis (ODS)FFAP FAA Free Flight Action Plan FFAS Free Flight AirSpaceFFI Final Factory Inspection (CBN - CNG)FFM Frankfurt/MainFFM Free Flight ModeFFS Führungs und Förderungs System (DE) (DFS) / Leadership and promotion

systemFFSC Free Flight Select Committee (RTCA)FFTF Future Functions Task Force (4-States/Eurocontrol)FFU Fire Fighting Unit FHA Functional Hazard Assessment FHSS Frequency Hopping Spread Spectrum FI Finland (ISO Country Code)FIAT First Installed Article TestFIB Forward Information Base *FIC Flight Information Centre *FIC Frequency IntercomFIDS (Swedish) Flight Information Display SystemFIFO First in, First outFIFU/TF Task Force on Financial Information to UsersFIN Financial Services

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FIN FinlandFIR Flight Information Region * / Région d’information de vol (FR)FIRST Flexible Independent Radar Skill Trainer (MAS) FIS Flight Information Service * FIS-B Flight Information Service - BroadcastFISC Flight Information Services CommunicationsFISO Flight Information Service OfficerFIT Flight Integration TaskFIT FANS Interoperability Team FIT Flight Plan Input TerminalFIT Factory Inspection Test FITAMS Flight Trials of ATN and Mode S activityFIW Flight Input (Information) Workstation (IFPS)FIX Fixpoint FKE Führungskräfte Entwicklung in der DFS (DE) / Management development

programmeFL Flight Level * FLAS Flight Level Allocation System / Scheme *FLINT Flight Intent TrialsFLIP Flight Information PublicationFLIPCY Flight Plan ConsistencyFLO Flow meetingsFLO ATS/ATFM Co-ordination meeting (ICAO)FLOE Informal ATS / ATFM Co-ordination Meeting – Europe EastFLOEast Informal Flow control Meeting – Europe East (ICAO/EANPG)FLOS Flight Level Orientation Scheme FLOW Informal ATS / ATFM Co-ordination Meeting – Europe WestFLOWest Informal Flow control Meeting – Europe West (ICAO/EANPG)FLOWTAM NOTAM on ATFM Measures FLS Flight Suspension Message (CFMU)FLT/PLN Flight Plan *FLTAB Flight Level TableFLTP Flexible Luxembourg Training PlatformFM Frequency ManagementFM Frequency ModulationFM Flow Manager FM Course from a Fix to a Manual Termination (ARINC 424 Path Terminator)FMAQ Flight Management Attitudes QuestionnaireFMC Flight Management Computer * / ControlFMCG Flow Management Co-ordination GroupFMEA Failure Modes and Effects AnalysisFMECA Failure Modes, Effects and Criticality AnalysisFMG Flow Management Group (ICAO)

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FMG Frequency Management GroupFMGC Flight Management and Guidance ComputerFMGS Flight Management and Guidance System FMI Fonds monétaire international (FR) / International Monetary Fund (=IMF)FMP Flow Management Planning / Position * (CFMU - ECAC States) / Poste de

gestion des courants de trafic (FR)FMPG Flow Management Planning GroupFmRgt Fernmelderegiment (DE)FMS Flight Management System *FMU Flow Management Unit *FMU Flight Management UnitFN False NegativeFNM Flight Notification Message (CFMU)FNPT Flight and Navigation Procedure Trainer FNS FREQUENTIS Network SystemFOC Full Operational Capability *FOC Flight Operations ControlFOCA Federal Office for Civil Aviation (Switzerland)FOCA Floor of Controlled AirspaceFOCUS Futura Posición del Controlador para UCS SACTA (ES)FOM Figure of Merit * (ICAO - ADS)FOR-DEC Facts, Options, Risks and Benefits, Decision, Execution and CheckFOU Frequency of UseFour-state BFWG

Four-State Budgetary and Financial working Group

FP False Positive FP Flight PlanFP Framework Programme (of the European Commission)FP 5 Fifth Framework Programme of the European Community for Research,

Technological Development and DemonstrationFPA False Plot Analysis *FPAP Flight Path Alignment PointFPB Flight Progress BoardFPC Flight Planning CentreFPCP Flight Path Control PointFPDETF, FPRDETF

Flight Plan related Data Exchange Task Force

FPDPS Front Panel Data PortsFPF Flight Plan FallbackFPFS First Planned First ServedFPL Filed Flight Plan * (ICAO format)FPL Full-Performance Level (US) FPL Flight PlanFPL (Filed) Flight Plan

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FPLA Field Programmable Logic Array FPLMTS Future Public Land Mobile Telecommunications SystemFPM Flight Progress MessageFPM Feet-per-MinuteFPM Flight Position Monitor *FPM Flight Path Monitor (PATs)FPO Flight Plan OfficeFPP Flight Plan ProcessingFPPS Flight Plan Processing SystemFPPU Flight Planning and Flight Progress UpdatingFPS Flight Plan Server (MADAP) FPS Flight Progress StripFPS Functional Performance Specification (EATCHIP)FPT Flight Plan TerminalFPWO Flight Plan Work Station Operator (IFPS)FPZ Flight Path Zone (ODID)FQR Formal Qualification ReviewFQT Formal Qualification TestingFR France (ISO Country Code)FRA Failure Reporting and Analysis (ODS)FRA Free Route AirspaceFRAC Free Route Airspace Concept (Eurocontrol)FrameAPS Frame Maker Aeronautical Publishing SystemFRAP Free Route Airspace ProgrammeFRAP5 5th Free Route Airspace ProjectFRB Failure Review Board (ODS) FREER Free Route Experimental Encounter Resolution / Système expérimental de

maintien autonome de la séparation sur routes libres (FR)FREER Freer FlightFREGATE Filtre de Régulation Ergonomique de la Gestion des Secteurs & d'Anticipation

des Tâches Excessives (FR)Freq Next Sector frequencyFRF Further Route of FlightFRG Federal Republic of GermanyFRM Financial Resources Management Core TeamFRN Field Reference NumberFRS Functional Requirements Specifications (EATMS)FRUIT False Replies Unsynchronised in TimeFRUIT * False Replies from Unsynchronised to Interrogator TransmissionFS Foot Switch (VCSFS Functional Statement (ICAO - ADS) FSA First System Activation (message)FSD TF Functional Specification Development Task Force (EASIE/MODE S)

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FSK Frequency Shift KeyingFSM Frequency Shift ModulationFSP Flight Strip PrinterFSPEC Field SPECification (ASTERIX), field of variable length, indicating which data

fields are present in a record and in which order (see also Record)FSS Flight Service Station * (US)FSSkt-A Flugsicherungssektor A (DE) / GAF sectors MAS UAC-Lippe Radarft FeetFTA Fault Tree AnalysisFTC Fast Time Constant FTE Full Time EquivalentFTE Full Time EmployeeFTE Flight Technical Error *FTFM Filed Tactical Flight Model (CFMU)FTmn False Track Length MeanFTP File Transfer Protocol FTprob False Track ProbabilityFTS Functional and Technical SpecificationFTS Fast-Time Simulation SystemFTsd False Track Length Standard DeviationFTT Flight Technical Tolerance FUA Flexible Use of Airspace * / Utilisation flexible de l’espace aérien (FR)FUAG Flexible Use of Airspace Group (sub-group of APT). See FUSGFUCOZOC Fuel Consumption Estimator in a ZOCFUSG Flexible Use of Airspace Sub-Group (Sub-Group of ANT)FUT, FCO Future ConceptsFVHF Future VHF System Study FVS Flight Verification SystemFWC Flight Warning ComputerFX Field Extension Indicator (ASTERIX)FY Fiscal YearFYP Five Year ProgrammeFYROM Former Yugoslav Republic of Macedonia

GG Group TrainingG/A Ground / Airg/dl grammes per decilitreG/G Ground/GroundG/T Gain over noise Temperature RatioG/w GatewayG2G Gate-to-GateGA General Aviation *

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GTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

GAAP Generally Accepted Accounting PrinciplesGAAS Generic Approach for ATM SystemsGa-As Gallium-ArsenidGACC General Aviation Consultative CommitteeGACS Generic ATN Communication ServiceGAF German Air ForceGAFLO German Air Force Liaison OfficerGAFO German Air Force Office GAFOR General Aviation Forecast (Meteo)GAIT Ground-Based Augmentation and Integrity Technique *GAMA General Aviation Manufacturers AssociationGAME GEADGE/ADKAR Message ExchangeGAP Global Action PlanGARTEUR Group for Aeronautical Research and Technology in EuropeGASC Global Aviation Satellite Communications SystemGASP Global Aviation Safety PlanGASR Group of AGA Safety Regulators (AOT list)GAT General Air Traffic *GATE Group of ATM in the Eastern Part of the ICAO EUR Region, including Middle AsiaGATM Global Air Traffic ManagementGb GigabyteGB Great Britain GB United Kingdom (ISO Countries Codes)GBA Geostationary Broadcast Area GBAS Ground Based Augmentation SystemGBCC Ground Based Control ComplexGBDA Gestor de Base de Datos de Adaptación (ES) / Environment Data Base ManagerGC Graphics ControllerGC Ground ControllerGCA German Cockpit AssociationGCA Government Quality AssuranceGCA Ground Controlled ApproachGCAS Ground-based Collision Avoidance SystemGCE General Certificate of Education GCL Graphical Information Category Cursor Line (EAS)GCS Ground Control SegmentGCSE General Certificate of Secondary EducationGCST Group for Coordination of STAR (Studies, Tests and Applied Research)GCTA Gestion des Courants de Trafic Aérien (=ATFM)GCWP Generic Controller Working PositionGD General Display and Data HandlingGDCA General Directorate for Civil Aviation (SP)GDCE Ground Data Circuit Terminating Equipment *

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GDLP Ground Data Link Processor *GDM Graphical Information Category Dynamic Maps GDOP Geometric Dilution of Precision *GDP General Data ProcessorGDP Gross Domestic ProductGDS Gestionnaire de Supervision (FR) (OCD)GE GeorgiaGEADGE German Air Defence Ground EnvironmentGEDARC Groupe d'Experts de Détection Automatique et Resolution des conflits (FR)

(SPACDAR)GEMS Generic Error-Modelling SystemGEN General GENOFIC General North Sea Flight Information CentreGEO Geostationary Satellite Orbit *GEOREF Geographical Reference *GEOS Geo-Stationary SatelliteGEOSTAR Multipurpose Satellite System Using Fixed Orbit Satellites (US)GEPNA Groupe Européen de Planification de la Navigation Aérienne (FR) (=EANPG)

(ICAO)GERAC EANGP WG on Coordination of the Implementation & Operation of an Improved

EUR AFTN/AFSGERAC Group on European Regional AFTN/AFS Implementation and Operation

CoordinationGES Ground Earth Station * (ICAO - ADS)GETALIS Sistema de Gestão de Tráfego Aéreo de Lisboa (PT) / Future Lisboa Air Traffic

Management SystemGFDI GNSS Fault Detection and Isolation *GFM Graphical Information Category Fixed Maps GGCS Ground/Ground Communication System (ICAO)GGDC Ground/Ground Data CommunicationGGDC-SG/GGDCSG

Ground/Ground Data Communications Sub-Group

GGSNIF Ground/Ground Subnetwork InfrastructureGGVC-SG/GVCSG

Ground/Ground Voice Communications Sub-Group

GHMI Ground Human-Machine InterfaceGHz GigahertzGIB Global Navigation Satellite System Integrity Broadcast *GIB GPS Integrity BroadcastGIC GNSS Integrity Channel *GIC Geostationary Integrity Channel *GICB Ground Initiated Comm B Protocol * (Mode S)GIPS General Image Processing SystemGIPS Global Initial Positioning SystemGIPS Giga Instructions Per Second

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GIS Geographical Information SystemGISP Global Internet Service ProviderGLONASS Global Orbiting Navigation Satellite System * / Système mondial de satellites de

navigation (FR)GLOSS Global Sea Level Observing SystemGLSU GPS Landing System UnitGM Guidance MaterialGmbh Gemeinschaft mit beschränkter Haftung (DE)GMC Ground Movement controlGMD General Meeting of DirectorsGMS Ground Monitoring System GMS Ground Movement SurveillanceGMT Greenwich Mean Time. See UTCGMU GPS Height Monitoring UnitGMV Grupo de Mecánica del Vuelo (ES)GNC Global NAVCOM * (IATA/ICAO Conference) GND Ground Control service / facilityGND Ground Level GNE Gross Navigational Error *GNLS GNSS Navigation and Landing System *GNLU GNSS Navigation and Landing Unit *GNP Gross National Product GNS Global Navigation SystemGNSS Global Navigation Satellite System * / Système mondial de navigation par satelliteGNSSP Global Navigation Satellite System Panel * (ICAO)GOMS Goals, Operators, Methods, Selection (rules) *GOSPAR GPS Operational Control System Performance Analysis and ReportingGOTV GNSS Operational Test and ValidatonGP Glide PathGPEA Groupe Permanent de l'Espace Aérien (FR)GPIWG Glide Path Intercept Waypoint GPS Satellite Navigation and Global Positioning System * GPS Geographical Paging / Positioning System *GPSSU GPS Sensor UnitGPTP Guided Part-Task Practice *GPV GNSS Performance Validation GPWS Ground Proximity Warning SystemGR GreeceGRACE Geographical Association and Classification of Events *GRADE Ground Return Area Digital EliminatorGRANAS Global Radio Navigation System (D)GRAS Ground-Based Regional Augmentation SystemGRIGRI Gestures, Recognition on Interactive Graphical radar Images

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GROBI Graphical Object InterfaceGROUP SIMUL

Groupe Simulation *

GRS GroB-Rundsicht Radar (DE)GrW Group WorkGS Ground SpeedGS Glideslope *GS Graphical Station GSA Guided Skill Acquisition *GSC Gaining Stakeholder Commitment (EATM)GSE Ground Support EquipmentGSFL Groupe d’experts “Sélection, formation et licences du personnel ATS” (FR) / ATS

Selection, Training and Licensing Panel (Eurocontrol) (=STLP)GSIMUL Guided Simulation *Gsimul Group SimulationGSM Global System for Mobile Communications *GSM Graphical Information Category Scale MarkingGSNA Ground-Supported Navigation AdvisoryGSO Geosynchronous OrbitGSO Group of Senior Officials GT Ground TransmitterGT2 Ghost Track rate (radar standard)GTB General Tool BoxGTBF (4 Etats)

Groupe de travail budgétaire et financier (FR) / Four-State Budgetary and Financial Working Group

GTC Gain Time ControlGTE Groupe tripartite européenGtG programme

Gate-to-Gate programme

GTID Group training – Instructor-dependentGTIS Ground-based Traffic Information SystemGTMD Group Training – Material-dependent GTO Geosynchronous Transfer OrbitGTP Groupe de travail “Pensions” / Pensions Working Group (= PWG)GTr Ghost Track RateGTRC General Technical Requirements and ConditionsGTS Global Telecommunications SystemGTVS Ground based Transponder performance Verification System (SCT)GUI Graphical User InterfaceGUI Guidelines (EATCHIP/EATMP/EATM)GUIDE General User Interface Device (ODS)GWL Graphical Information Category Weather Lines

H

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HTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

H HungaryH, h HourH/M/L High/Medium/Low (ATC Complexity)H16 Hours 16, Availability 16 hours/day, 7 days/weekH24 Hours 24, Availability 24 hours/day, 7 days/weekHA High AvailabilityHA Holding to an Altitude (ARINC 424 Path Terminator)HAD Human Aspects DevelopmentHADAMARD Multi-radar processing written in ADA HAI Helicopter Association InternationalHALO High Altitude, Low OpeningHALS / DTOP High Approach Landing System / Displaced Threshold OperationsHAMMER High-level All-purpose Monitoring and Management Equipment for RADNETHAT Height Above Touchdown *HATR Hazardous Air Traffic Report HAW Horizontal Aid Window (ODID)HBS Hotline Back-up SystemHCA Human-Centred AutomationHCAA Hellenic Civil Aviation AuthorityHCD Hard Copy DeviceHCI Human Computer Interface/InteractionHCP Hard Copy PrinterHCT Human-Computer TrustHD Harmonisation DocumentsHD Help DeskHDB Historical Data Base (ODS)HDBK Handbook HDD Head Down DisplayHDG Heading *HDLC High Level Data Link CommunicationHDLC High Level Data Link Control Protocol * (RADNET)HDOP Horizontal Dilution of Precision *HDS Help Desk StaffHED Heading *HEI Human Error IdentificationHEIDI Harmonisation of European Incident Definitions Initiative for ATM (SQS)HEL High Energy LaserHELLANET Hellenic aeronautical NetworkHEO Highly inclined Elliptical Orbit HEP Human Error ProbabilityHEP Horizontal Expansion ProgrammeHERA Human Error in ATM *(Project)HERAS Hellenic Radar System

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HERMES Harmonised En-Route Metering and Spacing (Sequencing)HESSD Human Error, Safety and Systems DevelopmentHEX Horizontal Expansion (of 8.33 kHz deployment)hex hexadecimalHF High Frequency *HF Holding to a Fix (ARINC 424 Path Terminator)HF Human Factors * (Modules = HRT)HFDL High Frequency Data LinkHFFG Human Factors Focus GroupHFIAI Human Factors in Incident and Accident Investigation (HRT)HFS Human Factors Studies HFSG Human Factors Study Group (ICAO)HFSG Human Factors Sub-Group (EATCHIP/EATM/HUM/HRT)HFTE Human Factors Testing and EvaluatingHFX Holding FixHg MercuryHHmm Hours and minutesHHMMSS hour-hour / minute-minute / second-secondHI FI SIM High-Fidelity Simulator *HIDE Harmonised, Integrated Development Environment HIFA Human Integration in Future ATM Systems *HIP Hearing of Interested Parties / Audition des parties intéressées (FR) HIPER-LAN High Performance Local Area NetworkHIPS Highly Interactive Problem Solver / Système hautement interactif de planification

et de résolution (FR)HIRO High Intensity Runway OperationsHIRTA High Intensity Radio Transmission AreaHIT Hardware Integration Test (MAS/DFS - ODS)HIT Hughes Improved TerminalHITL Human-In-The-LoopHLA High Level AirspaceHLD Hold ListHLDC High Level Data Link ControlHLLC High Level Link Layer ControlHLT Heavy Load Threshold HM Holding to a Manual Termination (ARINC 424 Path Terminator)HMATTF Handling of Military Air Traffic Task ForceHMD Horizontal Miss Distance (filter) (TCAS/ACAS)HME Height Monitoring Element HMI Human Machine Interface * or Interaction / Interface Homme/machine (FR)HMR Helicopter Main RoutesHMT Hand Microphone TelephonesHMU Height Monitoring Unit * (in connection with RVSM)

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HMZ Slovenian National Hydrometeorological InstituteHND Hand over keyboard buttonHNS Host Nation Support HNSE Horizontal Navigation System ErrorHO Hours Office, Availability during office hoursHOA Hand-off AcceptanceH-OFF-A Hand-Off AcceptH-OFF-P Hand-Off ProposeHOL High Order LanguageHOLD Hold(ing)HOOD Hierarchical Object Oriented Design HOP Hand-off ProposalHOP Harmonisation of Operational Procedures (AT, CH, DE)Hor Horizontal HOSP Hospital FlightHP High PrecisionHP Horse-PowerHp / hPa hectopascalHPA High Power Amplifier *HPC Hughes Programming Centre (NPC)HPD Horizontal Polar Diagram *HPRT HMI Preview Response TimeHPZ Helicopter Protection ZoneHQ Headquarters (EUROCONTROL Agency)HR Croatia, Republic of Croatia (ISO Country Code)HR Human ResourcesHRA Human Reliability Assessment / Analysis *HRD Human Resources DirectorateHRFG Human Resources Framework GroupHRI Human resources International (Israël)HRIS Human Resources Information SystemHRM Human Resources Management * / Services de gestion des ressources

humaines (FR)HRP Human Resources Planning and Corporate Services / Planification et aspects

généraux des ressources humaines (FR)HRPTSG Human Resource Planning and Training Study Group (ICAO)hrs hours HRS ATM Human Resources Management Programme (EATMP)HRS PSG Human Resources Programme Steering GroupHRSC Human Resources Steering Committee (Training Programme Ab Initio, CC)HRT Human Resources Team HRV Heart-Rate VariabilityHS Headset

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HSA Hollandse Signaal Apparaten (NL)HSCT High-speed Civil TransportHS-DTS High Speed Data Transmission SystemHSM High Speed ModemHSP Human Factors Sub-Programme (EATM/HUM/HRS)HSP Human Factors Sub-Programme (EATM/HUM/HRS)HST High Speed TrainHST Hypersonic TransportHTA Hermes Training Aircraft HTA Hierarchical Task Analysis *HTD History Trial Dots (ODS)HTI Human Technology IntegrationHTML Hypertext Markup LanguageHTTP Hypertext Transport ProtocolHTZ Helicopter Traffic ZoneHU Hungary, Republic of Hungary (ISO Country Code)HUD Head up DisplayHUM Human Resources (Domain/Unit)HUM BD Human Factors Management Business Division (Eurocontrol - DAS Business

Directorate)HUM RES Human ResourcesHUMR Human ResourcesHW, h/w Hardware HWCI Hardware Configuration Item (MAS/DFS - ODS)HWG Harmonisation Working GroupHWP Holding WaypointHWU Hardware UnitHz Hertz * (cycle per second)

II ItalyI and Q Channels

In-phase and Quadrature channels *

I(Fd) MTI Improvement FactorI/A Incident AnalysisI/O Input / Output I/R Interrogator/ResponsorIA Indirect AccessIA Instantaneous AccessIA International AlphabetIA/CC Indirect Access/Common Control IA-5 International Alphabet Number 5 *IAA Irish Aviation AuthorityIAAE International Association of Airport Executives

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ITip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

IACA International Air Carrier AssociationIACH Individual ATC Flight Plan Changes (CFMU)IACS INTERGRAPH Aeronautical Charting SystemIACSP International Aeronautical Communications Service ProvidersIAEA International Atomic Energy AgencyIAF Initial Approach FixIAFP Individual ATC Flight Plan ProposalIAG Interim Airport Group IAG International Association of Geodesy IAIP Integrated Aeronautical Information Package (EATCHIP)IAL Instrument Approach and Landing (Chart)IAL International Air-radio Limited (UK)IAM Institute of Aviation MedicineIAMF International Aviation Monetary FundIANS Institute of Air Navigation Services (Luxembourg)IANSSC IANS Steering CommitteeIAO Internal Audit OfficeIAOPA International Council of Aircraft Owner and Pilot AssociationsIAPL IFPS APL Message IAR Instrument Autonomous RulesIAR, IARTF Institutional Arrangements and Requirements Task ForceIARR IFPS ARR MessageIAS Indicated Air SpeedIASA International Aviation Safety AssessmentIAS-TFA Implementation of Airspace Strategy - Task Force "A" of ASMSG (Eurocontrol-IAS-TFB Implementation of Airspace Strategy - Task Force "B" of ASMSG (Eurocontrol-IATA International Air Transport Association / Association du transport aérien

internationalIATC International Air Traffic ControlIATTF IFPS Acceptance Test Task ForceIAW In accordance withIAWP Initial Approach WaypointIB Information (display) ButtonIBAA International Business Aviation Association IBAC International Business Aviation CouncilIBAP Industry Based PrototypeIBF Institut für Begleitforschnung und psychologisches Qualitätsmanagement (DE)IBILS Integrity Beacon Landing SystemIBM International Business Machines (US)IBP Industry-Based PrototypesIBRD International Bank for Reconstruction and Development (= BIRD)IC Integrated CircuitIC Intercom

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ICAA International Civil Airport AssociationICAO International Civil Aviation Organisation *ICAO EUR European Region of the International Civil Aviation OrganisationICB International Competitive Bidding ICBM Intercontinental Ballistice MissileICC Inter-Centre CommunicationsICCAIA International Coordinating Council of Aircraft Industry AssociationsICCS Integrated Communication Control SystemICCT Internal Communications Core TeamICCU Intercomputer Communications UnitICCVC Indirect Controller-Controller Voice CommunicationICD Interface Control Document (OLDI)ICET IATA Capacity Enhancement TeamICHG IFPS CHG MessageICIP Inital CIP (APT)ICM Interline Communications Manual *ICNA Ingénieur du contrôle de la navigation aérienne (FR) / Air Traffic Control EngineerICNI Integrated Communications, Navigation and IdentificationICNL IFPS CNL Message ICNL Individual Cancel (CFMU)ICO Intermediate Circular OrbitICON Involved ControllersICP Interactive Control PanelICP Internal Clarification ProjectICR Interactive Conflict ResolutionICR Integrated Cancellation RatioICT Information and Communication TechnologyICWG Interface Control Working GroupICWS Integrated Control Work Station ID Identification (ICAO)ID Identifier ID Information Display IDA Indirect Access (VCS)IDA Initial Distribution Area (IFPS)IDB Integrated Database (DBE + DBC)I-DCTS Interim Digital (Data) Communications Terminal SystemIDHS Intelligence Data Handling SystemIDL Interface Definition LanguageIDMS Integrated Database Management SystemIDP Initial Domain Part *IDRP Inter Domain Routing ProtocolIDS Information Display SystemIE Ireland (ISO Country Code)

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IEC International Electrotechnical Commission/CommitteeIEEE Institute of Electrical and Electronic Engineers (US)IEP Information Exchange ProgrammeIES Interface Editor System IETF Internet Engineering Task ForceIETF Internal EATMS Task Force IF Intermediate Frequency *IF Initial Fix (ARINC 424 Path Terminator)IF Intermediate FixIFA Image Frequency AttenuationIFALDA International Federation of Airline Dispatchers’ AssociationsIFALPA International Federation of Airline Pilots Association IFATCA International Federation of Air Traffic Controllers Associations / Fédération

internationale des associations de contrôleurs du trafic aérien (FR)IFATSEA International Federation of Air Traffic Safety Electronic AssociationsIfB Institut für Begleitforschung (DE) / Institute for Evaluation ResearchIFD Initial Functional Description / EASIEIFDS Interactive Flight Data SystemIFF Identification Friend or FoeIFFITAF IFPS-DBE Functional Interface System Task-ForceIFFN Identification Friend, Foe or NeutralIFG-NME WG Implementation Facilitation Group of the National Management Experts Working

GroupIFL Intermediate Flight Level *IFLIPS Integrated Flight Prediction System IFOR Implementation Forces (UN, NATO)IFPD Individual Flight Plan DataIFPL Individual Flight Plan MessageIFPL IFPS Filed Flight PlanIFPN IFPS NetworkIFPP Initial Flight Plan ProcessingIFPPS Integrated Flight Plan Processing SystemIFPRU IFPS Responsible UnitIFPS Initial Flight Plan Processing SystemIFPS, I²FPS Integrated Initial Flight Plan Processing System * (CFMU) / Système intégré de

traitement initial des plans de vol (FR)IFPU Initial Flight Plan Provisioning UnitIFPU(-2) Integrated initial Flight Plan Processing System (Unit 2)IFPZ IFPS Zone IFR Instrument Flight Rules * / Règles de vol aux instruments (FR)IFRB International Frequency Registration BoardIFSA Institu Français de Sécurité AérienneIFTO International Federation of Tour OperatorsIGA International General Aviation

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IGCN Independent Ground Communications NetworkIGP Ionospheric Grid PointIGS International GPS Reference NetworkII Interrogator IdentityIIMSES Initial Implementation of Mode S Enhanced Surveillance (a common project UK,

France, Germany, Benelux, including POEMS)IIS Internal Information System IISLS Improved Interrogation Side Lobe Suppression *IISLS Improved Interrogation Side Lobe SuppressionIKBS Intelligent Knowledge Based SystemIKD States In Kind Delivery States (France, Germany, Italy, Spain, UK, represented by their

ATS providers DNA, DFS, ENAV, AENA, NATS)IL Israël (ISO Countries codes)ILC IATA Learning CentreILO International Labour Organisation / Organisation Internationale du Travail (=OIT)ILS Integrated Logistic SupportILS Instrument Landing System *ILSP Integrated Logistic Support ProgramIM Information Management *IMA Integrated Modular Avionics IMAGE Instrument Macroscopique d'aide à la Gestion de l'espace (FR) (CORTA)IMAL Integrity Monitoring Alarm LimitIMAP Internet Message Access ProtocolIMAWP Initial Missed Approach Waypoint *IMC Instrument Meteorological Conditions *IMF International Monetary FundIMM Interacting Multiple Models, a generally applicable algorithm of track state

estimationIMO International Maritime Organisation / Organisation maritime Internationale (= OMI)IMP Implementation Services IMPACT Information Market Policy ActionsIMPACT Innovative Methodology for the Projection of ATM Concepts onto the Training of

ATCOsIMPACT Methods and tools to assess IMPACT on future ATM systems *IMPACT Informal Management Panel for ATC TrainingIMPACT (Model)

integrated Model of Perceived Awareness Control (model)

Impl Implementation *IMPLAN Implementation Plan (Cross Reference for internal traceability)IMTEG ILS/MLS Transition EUR Group (EATCHIP)IMUX Input MUltipleXer INA Institut de la navigation aérienne (Luxembourg) / Institute of Air Navigation

Services (=IANS)InCAS Interactive Collision Avoidance SimulatorINCERFA Uncertainty Phase *

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Ind Industry IND SIMUL Individual Simulation *INFR-C Infrastructure CreationINI Initial Approach ControllerINM Integrated Noise Model (software developed by the US FAA, manufacturer

Aerospatiale Matra Airbus)INMARSAT International Mobile Satellite Organisation *INO International NOTAM Operation (EATCHIP)INR Input ReconstructionINRIA Institut natinal de Recherche d’Information et d’Automatique (FR) / National

Institute for Computer Science and Automation Research.INS Inertial Navigation System *INST InstallationINSTAR Institutional Arrangements for European Air Traffic ManagementINSTILUX Eurocontrol Institute of Air Navigation Services (LU)Int International INTELSAT International Telecommunications Satellite OrganisationINTER The ATN Internet StrategyInteractive Interactive training *INTERCAUTRA

Internal CAUTRA protocol

INTL InternationalINTNET Integration Network (for flight data exchange) / Réseau intégré pour échange

de données de plans de vol entre Centres - civil/militaire (FR)Intruder Aircraft against which TCAS issues an advisory INU Inertial Navigation UnitINV Inventory AnalysisINV Inverse / InvertedINV Innovative Studies and Technological Assessment (ARDEP)INWP Intermediate WaypointIO, I/O Interoperability - Input / OutputIOATF IFPS Operational Advisory Task ForceIOC Initial Operational Capability *IOCD Initial Operational Concept DocumentIOCP Internal Operational Clarification ProjectIOD Issue of Data ION Institute of NavigationIOP Input / Output Processor (RMCDE)IOP Interoperability Programme IOR Indian Ocean Region (ICAO)IOR INMARSAT Indian Ocean RegionIOSS Input Output Sub SystemIP Internet Protocol *IP Information Button (mouse)

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IP Information PaperIP Information Processing LevelIPAG Intellectual Property Advisory Group (Policy Guidelines for Intellectual Property

Rights)IPAS Integrated Preparation and Analysis SystemIPAX Internet Protocol for Aeronautical ExchangeIPB Inner Performance Boundary (Tunnel Concept) *IPC Intermittent Positive Control IPCC Intergovernmental Panel for Climate ChangeIPG Integration Project GroupIPL Initial Programme LoadingIPL Intermediate Flight PlanIPR Intellectual Property RightsIPRs Intellectual Proprietary RightsIPRT Internal Processing Response Time IPS’s Intellectual Proprietary RightsIPSE Integrated Programming Support EnvironmentIPSky Internet Technology in the SkyIPT Internal Processing Time IPv6 Internet protocol version 6IQ Intelligence QuotientIQ Iraq (ISO countries codes)IQM Integrated Quality Management (for Radar Sensor)IR Iran (ISO countries codes)IR Integrated ReceiverIRAS Interactive Radar Analysis SystemIREN Incident Reporting European NetworkIRF Incident Report Form (DECADE)IRF Interrogation Repetition Frequency * (radar standard)IRIG (clock) IRL IrelandIRMA Intermediate Redesigned MCC Architecture (ESCO/DECADE)IROI Instantaneous Return on InvestmentIRPL Internal Repetitive Flight PlanIRR Internal Rate of ReturnIRS Interface Requirements SpecificationIRS Inertial Reference SystemIRS Intermediate Route Sequence (FPPS/DECADE)IRT Interrogation Repetition TimeIRU Inertial Reference Unit IRVR Instrument Runway Visual RangeIS Intermediate System *IS Iceland

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IS Interface SpecificationISA Independent Safety AuditorISA International Standard AtmosphereISA Instantaneous Self-AssessmentISA Innovative Slot AllocationISDN Integrated Services (switched) Digital Network * (=RNIS)IS-ES Intermediate System - End System ISL Intermediate Supplementary Flight Level *ISLS Interrogation Side Lobe Suppression *ISM Information Security ManualISMF Information Security Management FrameworkISMG Institute Strategy and Management Group (EUROCONTROL, IANS)ISO International Standards Organisation / Organisation internationale de

normalisationISO 10737 Transport Layer Management (Standards For Open Systems Interconnection

And Data Communication Published by ISO)ISO 7498-3 Basic Reference Model Part 3, Naming And Addressing (Standards For Open

Systems Interconnection And Data Communication Published by ISO)ISO 8072 Transport Service Definition (Standards For Open Systems Interconnection And

Data Communication Published by ISO)ISO 8073 Connection-Oriented Transport Protocol Specification (Standards For Open

Systems Interconnection And Data Communication Published by ISO)ISO 8073 AD 1

Connection-Oriented Transport Protocol Addendum 2, Class Four Operation Over Connectionless Network Service (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 8208 International Organisation for Standardisation X.25 Packet Level Protocol for Data Terminal Equipment Document.

ISO 8326 Basic Connection-Oriented Session Protocol Specification (Standards For Open System Interconnection And Data Communication Published by ISO)

ISO 8327 Basic Connection-Oriented Session Protocol Specification (Standards For Open Systems Interconnection And Data Communication Published by IS0)

ISO 8348 Network Service Definition (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 8348 AD 1

Network Service Definition, Addendum 1, Connectionless Mode Transmission (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 8473 Protocol For Providing The Connectionless-Mode Network Service (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 8649 Service Definition For The Association Control Service Element (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 8650 Protocol Specification For The Association Control Service Element (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 8822 Connection-Oriented Service Definition (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 8823 Connection-Oriented Presentation Protocol (Standards For Open Systems Interconnection And Data Communication Published by ISO)

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ISO 8878 International Organisation For Standard Use Of X25 To Provide OSI (Open Systems Interconnection) Connection Mode Network Services (Standards For Open Systems Interconnection And Data Communication Published by ISO)

ISO 9000 International Standards For Quality Management, 1990ISO 9072-1 Remote Operations - Part 1, Model. Notation And Service Definition (Standards

For Open Systems Interconnection And Data Communication Published by ISO)ISO 9072-2 Remote Operations - Part 2, Protocol Specification Version (Standards For Open

Systems Interconnection And Data Communication Published by ISO)ISO 9545 Protocol For Providing The Connectionless-Mode Network Service (Standards

For Open Systems Interconnection And Data Communication Published by ISO) ISO 9595 Common Management Information Service Definition (Standards For Open

Systems Interconnection And Data Communication Published by ISO)ISO 9596 Management Information Protocol - Part 1, Specification (Standards For Open

Systems Interconnection And Data Communication Published by ISO)ISO/IEC International Organisation for Standardisation / International Electrotechnical

CommitteeISO/OSI Interconnexion de systèmes ouverts (FR) / Open System InterconnectionISPACG Informal South Pacific ATS Co-ordination GroupISPL Individual Supplementary Flight PlanISPS Information Security Policy StatementISQMS Integrated Safety and Quality Management System (Safety Domain)ISR Independent Standby RadioISS Indirect sub-SystemISS Implementation Support Services ; Implementation Support to States / Services

de mise en oeuvre rendus aux Etats (FR)ISSS Initial Sector Suite System (FAA) IST Indirect Support Task *IT Information TechnologyIT Italy, Italian Republic (ISO Country Code)ITA Institut du Transport Aérien / Institute of Air TransportITA Integrated Task Analysis * (of ATCOs)ITA International Telegraphic AlphabetITA-2 International Telegraph Alphabet Number 2 *ITAEG Information Technology Advisory Expert Group (Standardisation, EPD -

CEN/CENELEC/ETSI)ITAM Integrated Task Analysis Methodology *ITASPS Informal International Civil Aviation Organisation Trans Siberia, Trans Asia,

Cross Polar Routes Steering Group (ICAO)iTEC-FDP Interoperability Through European Collaboration -- Flight Data Processing ITF International Transport Workers Federation ITI Italian InterfaceITID Individual Training- Instructor-dependentITIRS International Terrestrial Reference SystemITM Intermediate Approach controllerITMD Individual Training Material-dependentITR International Transit Route

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ITS Integrated Tower SystemsITSEC Information Technology SecurityITSTC Information Technologie Steering CommitteeITT Invitation Property RightsITU International Telecommunications Union * (=UIT)ITU WARC-95 International Telecommunication Union World Radio ConferenceITU-R International Telecommunications Union - RadioITU-T International Telecommunications Union - TelecommunicationsIUCM IFPS Unit Configuration ManagerIVF Independent Variable FilterIVR Immersive Virtual RealityIVSN Initial Voice Switched NetworkIWGE International Working Group on (air) ExercisesIWP Intermediate Waypoint

JJAA Joint Aviation Authority (consists of 29 ECAC National Aviation Authorities /

Autorités conjointes de l’aviation (FR)JAA AMC JAA Acceptable Means of ComplianceJAA OPS Joint Aviation Authorities Operations CommitteeJAAB/JAA-B Joint BoardsJAAC/JAA CE JAA CommitteeJAARC JAA Research CommitteeJAC Joint Airmiss Committee (UK)JACC Joint Area Control CentreJAMC Joint Airspace Management Cell (UK)JAR Joint Aviation Regulations JAR-ATS-OPS

Joint Airwothiness Requirements-Air Traffic Services-Operations

JAR-FCL Joint Aviation Requirements - Flight Crew Licensing (JAA)JAR-OPS Joint Airworthiness Requirements OperationsJAVA Java Programming languageJD TF Job Description Task ForceJIT Joint Implementation Team (chaired by Eurocontrol) (ESCO) MADAP/KARLDAPJMCT Job Management Consultative Team [job analysis]JOINT Joint Operational Incidents TrainingJOT Joint Operational Team (ESCO) JPALS Joint Precision Approach and Landing SystemJPDA Joint Probabilistic Data AssociationJPEG Joint Photographic Expert GroupJSP Joint Services PublicationJSSI JAA's Safety Strategy InitiativeJST Joy Stick JTIDS Joint Tactical Information Distribution System *

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JTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

JURG Joint Users’ Requirements Group (Eurocontrol Representative’ in the IATA/AEA )JVM Java Virtual Machine

KK, k Symbol for kilo (103)KABA Kontrastive Aufgabenanalyse in Büro (DE) / Contrastive Task Analysis of Office

WorkplacesKAR KarlsruheKARLDAP Karlsruhe Automatic Data Processing and Display System / Système

automatique de traitement et d’affichage des données du Centre de Karlsruhe (FR)

KB Kilo ByteKbps Kilobits per secondKBS Knowledge-Based SystemKDS Keyboard Display System (Station)KECU Thousands of European Currency Units KEMA Keuring van Elektrotechnische Materialen (NL) KfV Kuratorium für Verkehrssicherheit (AT) / The Austrian Traffic Safety BoardKhz KiloHertz *KIAS Knots Indicated Air SpeedKIDS Karlsruhe Interim DCTSKIS Keyboard Input Station KLDAP KARLDAP + Langen (D)KLM Royal Dutch AirlinesKLOC thousand lines of codeKlu Koninklijke Luchtmacht (NL) - Royal Dutch Air Forcekm, KM kilometreKm/h kiliometres per hourKNMI Koninklijk Nederlands Meteorologisch Instituut (NL) / Royal Netherlands

Meteorology InstituteKOX Karlsruhe Operational ExchangeKPA Key Performance Area (PRC)KPI Key Performance IndicatorKPT Karlsruhe Planning TeamKR Knowledge of ResultKR 20 A measure of the internal consistency, or homogeneity, or scalability, of a test

material (Ferguson, 1976).KSA Knowledge, Skills, AbilitiesKSAO Knowledge, Skills, Abilities, and Other personal requirementsKSD Kontrollstreifendruck (DE)KT or kt knots * (i.e. 1 NM/hour)KTD Keyboard Tabulator DisplayKUAC Karlsruhe Upper Aispace Control CentreKurtosis A term which refers to the flatness or peakedness of one distribution in relation to

another (Ferguson, 1976).

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KTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

KW, kW KilowattKYB Keyboard

LL Locator L LuxembourgL Tones injected by the local switchL/T Long-TermLA LAN AdapterLA Local Action *LAA Local Area Augmentation *LAA Laboratoire d’Anhropologie Appliquée (FR)LAAS Local Area Augmentation System Lab Laboratory (sound or multimedia)LACK The positive logical response message used for air/ground data communications,

as defined within the ICAO Manual for ATS Data Link ApplicationsLACK Logical Acknowledgement *LAD Look Ahead DisplayLADGNSS Local Area Differential GNSS *LADGNSS Landing GNSSLADGPS Local Area Differential Global Positioning SystemLAF Local Adaptation Functions (MADAP)LAHSO Land & Hold Short OperationsLAM Ljubljana ATC Data Processing SystemLAM Logical Acknowledgement Message * (OLDI)LAMPS Long Term ATCO Manpower Planning Simulation *LAN Local Area Network * / Réseau local LAN NMS Local Area Network Management SystemLANDA Logistics and AdministrationLANSU Local Air Navigation Service Unit (DFS)LAP-B Link Access Procedure (Protocol type B)LAR/LRR Long Range RadarLARS Lower Airspace Radar ServiceLAS Last Assigned Landing SlotLAS Lower Airspace SectorLASER Light Amplification by Stimulated Energy RadiationLASKA Learning And Skills Acquisition *LASS Local Area Augmentation SystemLAT Latitude LATC Local Air Traffic ControlLATCC London Air Traffic Control CentreLATCO Licensing of Air Traffic Control Officers (ICAO Study Group)LAU Local Approach Unit

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LTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

LAW Aviation LawLB Local Battery (circuits)LBA Luftfahrtbundesamt (D)LCC Lifetime Cycle CostingLCD Liquid Cristal DisplayLCG Load Classification GroupLCIP Local Convergence and Implementation PlanLCIPD Local Convergence and Implementation Programme Document / Document CIP

localLCM Late Change (modification) Message (designator) (IFPS)LCN Load Classification Number LCN Local Communications NetworkLDA Landing Distance AvailableLDA Landing Distance AvailableLDB Limited Data BlockLDGNSS Local Differential Global Navigation Satellite SystemLDGNSS Local Differential Global Navigation Satellite SystemLDT Logistic Delay TimeLec Lecture *LED Light Emitting DiodeLEFCO Project for the procurement of new ATM facilities in Nicosia ACCLEFD Local Essential Flight Details (MADAP)LEN Length IndicatorLEO Low Earth Orbit Les Lesson */ Demonstration *LF Low Frequency *LF Late Filer (IFPS)LFC (Swedish) Air Defence Centre or (unit)LFHB Low Flying HandbookLFL Last (reported) Flight LevelLFP Low Pass Filter *LFPP Limited Flight Plan ProcessingLFS Low-Fidelity-SimulationLFV Luftfartsverket (SE) (CAA of Sweden) LgUM Longitudinal acceleration Uniform MotionLHCP Left Hand Circular PolarisationLHR London Heathrow (UK)LIDO Lufthansa Integrated Dispatch OperationLIM/MID/RAN Limited Middle East Regional Air Navigation Conference (ICAO)LINK 2000+ LINK 2000+ ProgrammeLIP Light-penLISREL Linear Structural RelationsLIW Label Input Window

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LLC Link Layer ControlLLC Logical Link Control (RMCDE) LLC-I Logical Link Control - Class ILLM L-band Land MobileLLT Low Light TelevisionLLTR Low Level Transit RouteLLWAS Low Level Windshear Alert System *LLZ Localizer * (part of an ILS system)LM Low/Medium ATC ComplexityLMO Leadership Management and Organisation (EATCHIP)LMT Local Mean Time LNA Low Noise Amplifier *LNA/DPLX Low Noise Amplifier/Diplexer *L-NAV Lateral NavigationLNO Olno (Belgium sector indication)LO Local OscillatorLoA Line of Action LOA List of AbbreviationsLoA, LOA Letter of Agreement * ; Letter of Offer and AcceptanceLOC Lines of CommunicationsLOC Loss of Control AccidentLOC. Localiser *LoFA Longitudinal acceleration Fast AccelerationLoFD Longitudinal acceleration Fast DecelerationLOFT Line-Orientated Flight Training LoL Loss of LicenceLoL List of LotsLON LongitudeLOP Local Operating ProcedureLOPAR Low Powered Acquisition RadarLORAN, LORAN-C

Long Range Navigation */Hyperbolic Navigation System

LOS Level Safety *LOS Line of Sight *LoSA Longitudinal acceleration Slow AccelerationLoSD Longitudinal acceleration Slow DecelerationLoTA Longitudinal acceleration Typical AccelerationLoTD Longitudinal acceleration Typical DecelerationLOW Lower airspaceLR Linear RegressionLRC Legal ReCording LRC Legal Requirement Cell

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LRI Légiforgalmi és Repülőtéri Igazgatóság (Hungary)LRL Local Recording LogisticsLRM Line Replaceable ModuleLRM Logical Rejection MessageLRNZ Luftraumnutzungszentrale (DE) / Airspace and traffic management centreLRR Long Range Radar (SRE)LRS Local Route SequenceLRU Line Replaceable Unit *LRU Lowest Replacable UnitLRW Long Range Warning (IFPS)LS Loudspeaker LSA Logistic Support AnalysisLSA Lowest Safe AltitudeLSB Least Significant BitLSC Life Support Cost (Cyprus)LSP Loud SpeakerLt Sequence Time RequirementLT Lithuania (ISO Country Code)LTF Licensing Task ForceLTIOV Latest Time Information of ValueLTM Long Term Memory *LTM Local Traffic ManagementLTO Landing and take-off CycleLTOG Long Term Objectives Groups (EASIE, PHARE, FEATS, COPS etc)LTP Landing Threshold Point LTP Legal and Technical PanelLTSS Long Term Systems StudiesLTV Load Threshold Values * (CFMU)LU LuxembourgLUG Leerdam Users' GroupLUGS Link up Glons-SemmerzakeLUX Luxembourg (ISO countries Code)LV Laser VisionLV Latvia (ISO 2 character country Code)LVA Large Vertical Aperture LVB Luchtverkeersbeveiliging (RLD-NL)LVNL Luchtverkeersleiding Nederland (NL)LVTO Low Visibility Take-offLWG Licensing Work Group

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MTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

MM Many-to-Many relationshipM Modules (replaceable)M Symbol for Mega (10+6)m Symbol for milli (10-3)m. metrem/sec Metres per secondM/T Medium-TermMA Member AssociationMA Message Assurance *MA Morocco (ISO Countries Codes) MAAFAS More Autonomous Aircraft in the Future ATM SystemMAC Military Airlift CommandMAC Mid-Air CollisionMAC Management Advisory CommitteeMAC Medium Access Control * (RMCDE)MAC Message for the Abrogation of Coordination (OLDI)MACC Military Area Control CentreMACC Manchester Area Control CentreMACE Malvern Capacity EstimateMACE Multi-criteria analysis for Concept EvaluationMACEN Mando Centra MACS Multiple Access Communications System MAD Model of Activity for DesignMADAP Maastricht Automated Data Processing and Display System * / Système de

traitement et d’affichage automatique des données du Centre de Maastricht (FR)MADREC Maastricht Data Recording *M-ADS Modified Automatic Dependent Surveillance (ICAO)MAESCAPE Eurocontrol Simulation Capability and Platform for Experimentation tailored to

Maastricht UAC requirementsMAESTRO Means to Aid Expedition and Sequencing of Traffic with Research and

Optimisation / Moyen d'Aide à Ecoulement Séquencé du Trafic avec Recherche d'Optimisation (FR)

MAHF missed Approach Holding FixMAHWP Missed Approach Holding WaypointMAN Manual MessageMAN Metropolitan Area NetworkMANACT Manual Activation messageMANs Metropolitan Area NetworksMANSUP ATC Modernisation ProjectMANTEA Management of Surface Traffic in European AirportsMAP Military Assistance ProgramMAP Mapping

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MAP Maintenance Action PlanMAPI Messaging Application Programming InterfaceMAPt Missed Approach PointMAR Mode A ReconstructorMARRES Manual Radar Return Exploitation SystemMARS Military Air Route Structure MARS Maastricht Reserve SystemMARSA Military Authority Assumes Responsibility for Separation of AircraftMART Message Acknowledge Response Time MARTOS MADAP Real-Time Operating SystemMAS Multiple Access Store MAS Manage AirspaceMAS Middle AirspaceMAS Manual Assume of Control Message (OLDI)MAS Military Agency for StandardisationMAS Message Assurance ServiceMAS (UAC) Maastricht Upper Area Control CentreMASAW Minimum Safe Altitude WarningMASOR Military Area Services Operations RoomMASP Minimum Aviation Specification PerformanceMASPS Minimum Aircraft System Performance Specification (ICAO) ; Minimum Aviation

System Performance StandardsMASS Multi-Aircraft Simplified SimulatorMASS Multi Aircraft Simplified SimulatorMAST Multi-Aircraft Simulation TerminalMAST 4 4 States Integration and Maastricht Development Steering GroupMAT Mackinnon Aerospace and TrainingMAT Message Acknowledge TimeMATCC Military ATC Centre MATD Minimum Approach-to-terrain DistanceMATE Multi-Aircraft Training EnvironmentMATIAS Magyar (Hungarian) Automated and Integrated Air Traffic Control SystemMATO Military Air Traffic OperationsMATOS Modélisation et Allocation de Tâches entre Opérateur et Système (FR)MATRAC Military Air Traffic Radar Control CentreMATS Manual of Air Traffic ServicesMATSE Meeting (of ECAC Transport Ministers) on the Air Traffic System in EuropeMATWP Missed Approach Turning WaypointMAV Medium Access ControlMAWP Missed Approach Waypoint MAZ Mini ASCAP-ZKSD CouplingMB MegabyteMb Milibars

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MB MariBorMBB Messerschmitt, Bölkow and Blöhm (DE)MB-II Multibus II (RMCDE)MBO Management by ObjectivesMbps Mega Bits per secondMBR Mittel-Bereich radarMBS Mobile Broadcast ServicesMC Main Computer MC Monaco (ISO Countries Code)MCA Minimum Crossing AltitudeMCC Main Computer Complex (Maastricht)MCC Mission Control Centre MCC Military Control CentreMCDU Maintenance and Control Display UnitMCDU Multi-Function Control and Display UnitMCDU Multi-purpose Control and Display Unit (ACARS)MCE Management Centre Europe (seminars/courses)MCF Manning Calculation FormulaMCG Maastricht Co-ordination Group MCG Minimum Climb GradientMCH Modified Cooper-Harper rating scale for system workload assessmentMCI Mobile Communication InfrastructureMCI Mobile Communication Infrastructure MCMG Military Committee Meteorological GroupMCP Management Control Point *MCP Mode Control PanelMCS Multi-Aircraft Cockpit SimulatorMCS Monitoring and Control SystemMCS Master Control Station *MCSG Military Committee Staff GroupMCT Maastricht Co-ordination Team MCTR Military CTRMCU Main CWP-UnitMD Moldova (ISO 2 characters Country Code)md Man DayMDA/H Minimum Descent Altitude/HeightMDD Meteorological Data Distribution (function)MDF Main Distribution FrameMDI Minimum Departure Interval (CFMU)MDI Manage Document InputsMDI Multiple Document InterfaceMDNS Managed Data Network ServiceMDP MADAP Data Processor

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MDP Maastricht Development Plan MDS Minimum Detectable SignalMDS Management Document StorageMDT Mean Down TimeMEA Minimum En-route Altitude (ICAO)MEB Main Earthing BarMECA Model for the Economical evaluation of the Capacities of the ATM systemMECO Main Engine CutoffMECU Millons of ECUMEDICIS Mécanisme d'Echange et de Diffusion d'Information Cartes Inter Systèmes (FR)MEDLL Multipath Delay Lock Loop MEDUP Mediterranean Update ProgrammeMEDUP Mediterranean Upgrade ProgrammeMEF Minimum Essential FacilitiesMEFISTO Modelling, Evaluating and Formalising Interactive Systems using Tasks and

Interaction ObjectivesMEG MagnetoencephalographyMEL Minimum En-route LevelMEMPAC CBT on Memory, Perception, Cognition and Attention *MEO Medium Earth OrbitMERISE Méthodes Eprouvées de Ralentissement Important et Significatif des Etudes(FR)MES Mobile Earth StationMET Meteorological or request METAR MET Meteorological (office) / Services Météorologiques pour la navigation

aérienne(FR)MET/AIS Meteorological and Aeronautical Information processing SystemMET/TF Task Force on the Allocation of Meteorological Costs to Civil Aviation UsersMETAR Meteorological Aerodrome ReportMETARs Meteorological Aviation Routine Weather Reports / Actual ReportMEURO Millions of EUROMF Multiplication Factor MF Metering FixMF Medium Frequency *MF Manning FactorMFA Message Format AreaMFAL Major Functional Areas List (ODS)MFC Multi-Frequency Coding (telephone system)MFC/LB Multi-Frequency Coding / Local BatteryMFC-R2 Multi Frequency Compelled - R2MFDA Military Flight Data AssistantMFF Mediterranean Free FlightMFG Manpower Focus GroupMFL Military Flight List

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MFLOPS Million Floating Point Operations per Second MFPU Mobile Field Processing UnitMFS Message from ShanwickMFUR Most Frequently Used route / Route la plus fréquemment utilisée (FR)MGC Main Graphics Controller MGT ManagementMGV Miss Generation Volume *MHF Medium High FrequencyMHS Message Handling ServicesMHT Multi Hypothesis TechniqueMHT Multi Head TrackingMhz Megahertz *MIAT Mission d’inspection administrative et technique (FR) / Administrative and

Technical Inspection Committee (=ATIC)MIB Management Information Base *MIC Microphone (VCS)MICA Mode S Interrogator Code Allocation MICAM Military Code Allocation Method MICoG Mode S IC Co-ordination GroupMICUP Méthode d’Interaction Constante des Unités Programmées (FR) / Computerized

unit constant interaction method.MID Middle-East Region * (ICAO) / Moyen-OrientMIDAS Man-machine Integration Design analysis SystemMIDS Multi-Function Information Distribution SystemMIF MTI Improvement FactorMIG Mikojan - GurevichMIL Military OrganisationsMIL BD Military Business Division (Eurocontrol)MIL FS Militärische Flugsicherung (DE)MILATCC Military Air Traffic Control CentreMILE Multiple Integrated Laser Engagement SystemMIL-HDBK Military Handbook MILREP Military RepresentationMILSATCOM Military Satellite CommunicationsMIL-STD Military StandardMIN Message Identification Numbermin minutesMINIPLN Set of Flight plan related information provided by an FPPS to an ARTAS Unit,

used for track labellingMIO Military Sector Input OperatorMIP Multinational Information ProductionMIPS Million Instructions per SecondMIR Master Inspection Record MIRACULIX Multi Interface Radarformat Calculator and User Line Information Exchange

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MIS Manual Input StationMIS Management Information SystemMIS Management Information Service/Systems User *MITRE Massachusetts Institute for Technology, Research and EngineeringMIW Message In WindowMK The former Yugoslav Republic of MacedoniaML MilitaryMLD Military Liaison DivisionMLDT Mean Logistic Down Time MLS Microwave Landing System *MLS Microwave Landing SystemMLT Multi-LaterationMM Mental Model *mm Man-Monthmm MillimetreMM Middle Marker *MMC Multimedia Computer *mmHg Millimeters of mercury (a unit of pressure)MMI Man-Machine Interface. See HMIMMIL Martin-Marietta International LinkMMOC Martin-Marietta Overseas CorporationMMPI Minnesota Multi-phasic Personality InventoryMMR Multi-Mode Receiver *MNC Major NATO Commander MNCC Multinational Coordination CentreMNPS Minimum Navigation Performance SpecificationMNPSA Minimum Navigation Performance Specification Airspace *MNS Mobile Network ServicesMNT Mach Number Technique *MNWG Multi-national Working GroupMOA Memorandum of AgreementMOB MobileMoC Memorandum of Co-operation MOC Minimum Obstacle Clearance MOCBITE Maastricht Operational Computer Based Information, Training and Examination

SystemMOD Ministry of DefenceMODCOND ATFM Exceptional Condition Modification MessageMODE C Altitude Reporting Mode of Secondary Radar (ICAO)Mode S Mode Select *Mode S-SG Sub-Group for the initial implementaion of Mode S Enhanced SurveillanceMODREG ATFM Regulation Modification MessageMOF Mode of Flight *

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MoF Minister of FinanceMOFL Longitunal Mode of FlightMOFR Mode S FDPS RequirementsMOFT Transversal Mode of FlightMOFV Vertical Mode of FlightMON Centre of Expertise MonitoringMONA Monitoring Aids*MONA User Monitoring Aids User *MOPS Minimum Operational Performance Standards (Specifications) / FAAMOPS Minimum Operational Performance SpecificationsMOR Military Operational Requirements MORS Mandatory Occurrence Reporting SchemeMOS Minimum Operating StripMOSD Mission, Objectives and Strategy DocumentMOT Ministry of TransportMOT&E Multinational Operational Testing and EvaluationMOTNE Meteorological Operational Telecommunications Network EuropeMOU, MoU Memorandum of UnderstandingMOUSES, MOUSES TF

Mode S Operational Use of Enhanced Surveillance Task Force

MOW Message Out Window MOX (-B) Maastricht Operational Telephone Exchange (version B)MP Manpower Planning *MP Mental Picture *Mp MicroprocessorMP Maintenance PlanMPA MOF Performance AnalysisMPA Maritime Patrol aircraftMPA Military Planning AssistantMPC Message Processing CentreMPC Military Planning ControllerMPDR Medium Powered Doppler RadarMPEG Moving Pictures Expert Group MPL Mini Flight PlanMPLS Multi-Protocol Label SwitchingMPO Management Project OfficeMPO Maastricht Project OfficeMPR Medium Powered RadarMPR Swedish National Board for Measurement and TestingMPRT Menu Preview Response TimeMPs Manpower PlannersMPS Minimum Performance SpecificationMPS / MPSG Manpower Planning Sub-Group

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MP-SEC Management Planning System Evaluation and ControlMPT Minimum Performance Transponder MPX Multiplex (Transmission)MRA Military Reserved AirspaceMRA Mandatory Route Activation/Cancellation/Modification MessageMRC Monitoring and Remote ControlMRC Military Radar ControllerMRCA Multirole Combat AircraftMRDP Multi Radar Data Processing MRDPS Multi Radar Data Processing SystemMRDV Multi Radar Daten Verarbeitung / Multi-Radar Processing SystemMRI Master Record Index (MAS - ODS)MRI Magnetic Resonance ImagingMRK Marker (RLB) MRL Minimum Risk LevelMRM Minimum Required Manoeuvre (OCD)MRRP Minimum Risk Routing PointMRS Monitoring and Ranging StationsMRSA Mandatory Radar Service AreaMRT Mean Response TimeMRT Monitoring R/T, an ACM service messageMRT Multi Radar TrackingMRTS Multi Radar Tracker and Server (System) MRT-VU Multi Radar Tracking using Variable Update *MRU Projekt Marknadsföring Rekrytering Urval och Utbildning (SE) / Project for

marketing, recruitment, selection and training for ATCO students, in SwedenMRVA Minimum Radar Vectoring Altitudems millisecondMS MicrosoftMS TF Mode S System Task ForceMSA Minimum Sector AltitudeMSAS MTSAT Satellite Based Augmentation System *MSAW Minimum Safe Altitude WarningMSB Most Significant BitMSC Maastricht Steering CommitteeMSC Meteorological Services Communication MSC Miscellaneous Simulation FacilityMS-DTS Medium Speed-Data Transmission SystemMSF Master Simulation FacilityMSG Manpower Sub-Programme (HRS)MSG Manpower Sub-GroupMSG MessageMSGDLP Mode S Ground Data Link Processor

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MSK Minimum Shift KeyingMSL Mean Sea LevelMSP Mode S Specific Protocol *MSP Multi-sector planning MSRT Mean Services Restoration TimeMSS Message Storage SystemMSS Maintenance and Support ServicesMSSA Message Switching SystemMSSR Monopulse Secondary Surveillance RadarMST Multiple Sensor TrackingMSTU Multiple Stagger Trigger UnitMSU Management Storage UnitMSUP Military SUPervisorMT Malta (ISO 2 characters country Code)MTA Military Training Area MTA Message Transfer AgentMTAC Multiple Time Around ClutterMTAT Multiple Time Around TargetsMTBCF Mean Time Between Critical FailuresMTBF Mean Time Between FailureMTBR Mean Time Between RemovalsMTCA Medium Term Conflict Alert / Assistance (ODID)MTCD Medium Term Conflict DetectionMTCDR Medium-Term Conflict Detection and ResolutionMTCEP (Short) & Medium Term Capacity Enhancement PlanMTD Moving Target Detection *MTD Mean Down Time MTD Micro Tabular DisplayMTF Modulation Transfer FunctionMTI Moving Target Indicator *MTMA Major TMAMTN Mega Transport NetworkMTOM Maximum Take-Off MassMTOW Maximum Take-Off WeightMTP Medium Term PlanMTPA Mobile Transponder Performance Analyser Mtraq Multi track quality (RADNET)MTS Memory Time Switch (ACS)MTS Manoeuvrable Target SimulatorMTSAT Multi-Functional Transport Satellite *MTTF Mean Time To FailureMTTR Mean Time To RecoverMTTR Mean Time To Repair/Restore (CBN - CNG)

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MTTRlru Mean Time to repair LRUMTTRp Mean Time to repair productMTTRsru Mean Time to repair SRUMTU Master Trigger Unit MU Management Unit (ACARS)MUAC Maastricht UAC (Upper Area Control Centre)MUDPIE Multiple User Data Processing Interactive EnvironmentMURATREC Multi Radar Trajectory Reconstruction (System) *MUSAC Multiple Switching and Confirming (VCS)MUT Mean Up TimeMUX MultiplexMVE Move (RLB)mW MilliwattMW Megawattmw Man WeekMW Microwave link MWA Message Warning AreaMWO Meteorological Watch OfficeMWP Meteorological Working Position (CFMU)MWT(A) Mean Waiting Time, AdministrativeMWW Upper Wind and Temperature Forecast (message)MXCOP MADAP Exit Co-ordination PointMXFL MADAP Exit Flight Level

NN Neper n Symbol for nano- (10-9)N/A Not ApplicableN/C Not ComparableNABS National Augmentation Broadcast SystemNAC North Atlantic CouncilNACMA NATO Agency for Air Command and Control System ManagementNADC NATO Air Defence CommitteeNADGE NATO Air Defence Ground EnvironmentNADIN National Airspace Data Interchange Network (US) NAEW & C NATO Airborne Early Warnings (and Control)NAFTA North American Free Trade Agreement (Canada, US, Mexico)NAGU Notice Advisory to GLONASS UsersNAI Non Automated InitiationNAIA New Athens International AirportNAIS Norwegian Aeronautical Information SystemNAK Negative Acknowledgement (ICAO)NALLA National Long Lines Agency

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NTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

NAM North America Region * (ICAO)NAMC National Airspace Management Cell NAME Nadge - ADMAR Message Exchange NAMILCOM NATO Military CommitteeNAMSA NATO Maintenance and Supply AgencyNAMSO NATO Maintenance and Supply OrganisationNANU Notice Advisory to NAVSTAR UsersNAP National Associated Programmes NAP Noise Abatement Operating ProcedureNAR North American Route System *NARDS Norwegian Automatic Dependent SurveillanceNARFA National Radio Frequencies AgencyNARG Navigation Aids and Area Navigation Group (ICAO - EANPG)NARSIM NLR ATC Research Simulator NAS Naval Air StationNAS National Airspace System (US)NAS Network Administration System (DAKOS, FFM / RAPNET - MAS UAC)NASA National Aeronautics and Space Administration (US)NASA RTLX NASA Raw Task Load indeXNASA TLX NASA Task Load indeXNASC National AIS Service CentreNASPAC National Airspace Performance Analysis CapabilityNAS-Plan National Airspace Plan NAT North Atlantic Region * (ICAO)NAT ADS North Atlantic Automatic Dependent SurveillanceNAT ATMG North Atlantic Air Traffic Management *NAT CADAG North Atlantic Communications Automation and Data Link Applications Group *NAT CMA North Atlantic Region Central Monitoring AgencyNAT IMG North Atlantic Implementation Management Group *NAT MWG North Atlantic Mathematicians Working Group *NAT OPS MNG

North Atlantic Operations Managers Meeting *

NAT PCO North Atlantic Programme Coordination Office (ICAO)NAT RSSIG North Atlantic Reduced Separation Standard Implementation Group *NAT SPG North Atlantic Systems Planning Group * NAT VSIG North Atlantic Vertical Separation and Implementation Group *NAT NAM North Atlantic / North America (ICAO Regions) NATCON North Atlantic ConceptNATINAD(S) NATO Europe Integrated Air Defence (System)NATMC NATO Air Traffic Management Committee (former CEAC)NATMC National Airspace and Traffic Management Centre (Germany)NATMC NATO ATM CommitteeNATN (Swedish) National Aeronautical telecommunications Network

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NATO North Atlantic Treaty OrganisationNATS National Air Traffic Services (UK)NATS National Air Traffic Services (UK)NATSPG North Atlantic Systems Planning Group (ICAO)NAT-TFG North Atlantic Air Traffic Forecasting Group *NAV Navigation (Eurocontrol EATMP Domain name)NAV-1 Radar Data System (Portugal) NAVAID Navigation(al) AidNAVDB Navigation Data BaseNAVIAIR Flyvesikrinstjenesten (Danish Air Navigation Service Provider)NAVSAT Navigation(al) aid. See SATNAVSAT Navigation SatelliteNAVSEP Navigation and Separation Specialist PanelNAVSTAR Navigation Satellite Timing and Ranging SystemNBA Finnish CAA (SU)NBAA National Business Aviation AssociationNC Non-ConformanceNC Normally ConnectedNC Non-CriticalNCAA NATO Civil Aviation AuthorityNCAA Norwegian Civil Aviation AuthorityNCAB National Civil Aviation Board NCAIC National Civil Aviation Information CentreNCCA No Clearance to Civil AircraftNCIPD National CIP DocumentsNCMS Network Channel Management StationNCN Non Compliance NotificationNCOP Entry Coordination Point NCS Navigational Computer SystemNCS Network Communication SystemNCS Network Control System / Station (CBN - CNG)NCW Non Conformance Warning * ND Navigation Display ND Network Digit (CCITT X.121 Structure)NDA Non Disclosure AgreementNDA National Distribution AgencyNDA Next Data Authority (ICAO)NDB Non-Directional Beacon *NDE Node ProcessorNDI Non Development ItemsNDS Nuclear Detection SystemNDS Non-Deviation StatusNE North / East

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NEA Nederlands Instituut voor Economische Argumentatie (NL)NEAN North European ADS-B Network NEAP North European Application ProjectNECP Entry Coordination Point (MADAP)NEF Noise Exposure ForecastNEGATIVE RA

RA applying maximum vertical rate (eg don't descend > 500 ft/min)

NEI Noise Exposure IndexNERC New En-Route Control Centre (UK)NERC System New En-Route Centre System (UK)NES Navigation Ground Earth StationsNET Network Entity Title *Net NetworkNET BD Network Capacity Business Division (Eurocontrol - DAP Business Directorate)NETCAP Network Capacity (simulator)NET-TF Circuit Provisioning and Network Management Task ForceNEWETOT New Estimated Take-Off TimeNEWREG New ATFM Regulation MessageNEXCOM Next-Generation Air/Ground CommunictionsNEXRAD Next Generation Weather Radar NF Noise FigureNFL Entry Flight Level * (Re-Entrant Flight) NFL Nachrichten für Luftfahrer (DE) (= NOTAM)NFLGB Nachrichten für Luftfahrt Gerichte Beratung (DE) (AIS)NFPPDS National Flight Plan Processing SystemNFR Non-Functional RequirementN-FRG Northern Federal Republic of GermanyNFS Network Filing System NFT Nominal Flight TrajectoryNGSS Next Generation Satellite SystemNHIP Nordic Harmonisation and Integration ProgrammeNIC Network Interface CardsNIH Noise Induced Hearing LossNIK Nicky VORNIM Navigational Integrity Monitoring (ICAO) NIMA National Imagery and Mapping Agency (of the US Department of Defence (DOD)NINS-NILS New Integrated Navigation System - New Integrated Landing SystemNIT Nordic Implementation TeamNL the NetherlandsNL Network Layer *NLA New Large AircraftNLC Netherlands Aviation College (NL) / Nederlands Luchtvaart CollegeNLES Navigation Land Earth Station

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NLM Nederlandse Luchtvaart Maatschappij (NL)NLR Nationaal Lucht- en RuimtevaartlaboratoriumNLR Nederlands Lucht- en Ruimtevaart Laboratorium (NL) / National Aerospace

Laboratory NLT Not Later Than NM North MarkerNM Negotiation Manager (PATs)nm, NM Nautical Mile * (1.852 m)NMAC Near Mid-Air CollisionNMC Network Management Centre (RAPNET / MAS UAC / DAKOS)NME/ad hoc Ad Hoc Working Group of National Management ExpertsNMIL Nieuw MilligenNMR National Military RepresentativeNMS Network Management System / SwitchNNCOP New Node Change-Over ProtocolNNI Network to Network InterfaceNO Norway (ISO Country Code) NOAA National Oceanic and Atmospheric Administration *NOAA New Optimised Approach for ATSM Workshop (CFMU)NOC Network Operation CentreNODE NATS’ Operational Display EquipmentNOF NOTAM OfficeNOG Northern Telecom Network Operator's Group (CNG - CBN)NOG OA&M NOG Operations, Administration & Maintenance Subgroup (CNG - CBN)NOG-FSG NOG Features Subgroup (CNG - CBN) NOKIA Nokia CorporationNOMAS NOTAM Management System (NL)NOPT No Procedure Turn requiredNORAC No Radio ContactNOS Network Operating SystemNOTAM Notice to Airmen *NOTAMC NOTAM to cancelNOTAMN New NOTAMNOTAMR NOTAM to replaceNP Network ProtocolNPA Non Precision Approach *NPDU Network Protocol Data Unit (RMCDE)NPL Night PlanNPO Scientific Production Organisation [Russian] NPO KIP [Russian]. Scientific Production Organisation * ; Scientific Production Institute of

Space Device BuildingNPO PM [Russian]. NPO Prikladnoi Mekhaniki (RU) / Scientific Production Institute for

Applied MechanicsNPRM Notice of Proposed Rule Making

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NPV Non-Precision Approach procedure with Vertical GuidanceNPV Net Present ValueNR Noise RatingNr. NumberNRC National Research CouncilNRF NATS Research FacilityNRL (US) Naval Research LaboratoryNRP North Reference PulseNRZ Non Return to Zero (RMCDE)NRZI Non Return to Zero Inverted (RMCDE) ns Nanosecond *NS Navigation Separation NS Next SectorNSAP Network Service Access Point *NSC New Scottish CenterNSC Notice to Airmen Selection Criteria *NSD Navigational Status DisplayNSDU Network Service Data Unit NSE Navigation System Error *NSM Network System (Sensor) ManagementNSSG Navigation and Separation Sub-GroupNSSR Next/New Secondary Surveillance Radar Code (MADAP)NSTB National Satellite Test Bed NSVN NATO Secure Voice NetworkNSWC Naval Surface Warfare Centre NT Microsoft Windows NT Operating SystemNT Northern Telecom (RMCDE)NTA No Traffic Accepted MessageNTACNL No Traffic Accepted Cancellation MessageNTAMOD No Traffic Accepted Modification MessageNTE Not to exceedNTM F/T SIM Nattenheim Fast Time Simulation NTN Network Terminal Number (CCITT X.121 Structure)NTR New Task RequestNTR/ADD New Task Request/ADDNTR/SRD New Task Request/SRDNTR/TL.ADD New Task Request/Top Level ADD and ICDNTRY Entry *NTSB National Transportation Safety Board (US)NTT NERC Transition TeamNUA Network User AddressNUDET Nuclear Detection NUP North European ADS-B Network (NEAN) Update Programme

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NUP NEAN (North European ADS-B Network) Upgrade ProgrammeNW North / WestNXRPT Next Reporting PointNXT Next

OO OceanicOAC Oceanic Area Control CentreOACA Office of Airports and Civil Aviation / Office des Aéroports et de l’Aviation CivileOACC Oceanic Area Control CentreOACI Organisation de l'Aviation Civile Internationale / International Civil Aviation

Organisation (= ICAO)OACI Organisation de l'Aviation Civile Internationale (ICAO)OAG Official Airlines Guide (CFMU)OAS Oceanic Automation System (ICAO - ADS)OASIS Operational Application of Special Intelligence SystemsOASIS Open ATC System Integration Strategy (OCD)OASIS Open Architecture for Simulation SystemsOASIS Oceanic Area System Improvement StudyOASYS Obstacle Avoidance System OAT Operational Air Traffic *OBA Off-Bore Sight Angle *Obj. Objective in CIPOBR Obnova Radiolomunikaci (YU) / Renewal of Air-Ground CommunicationsOBS OBservation StatusOBS Organisational Breakdown Structure *OBT Off Block TimeOC Object Correlator *OCA Oceanic Control AreaOCA/H Obstacle Clearance Altitude/Height OCAP Out of Control Action PlanOCD Operational Concept Document OCDE Organisation de Coopération et de Développement économiques (FR)OCIC Operations Control Incident CentreOCL Obstacle Clearance Limit (ICAO)OCL Oceanic CLearance deliveryOCM Oceanic Clearance MessageOCP Operational Computer ProgrammeOCP Obstacle Clearance PanelOCR Operational and Certification RequirementsOCR Optical Character Recognition OCR TF Operational and Certification Requirements Task ForceOCS Operational Control Segment

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OTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

OCT Onward Clearance TimeOCT Operational Control Terminal (VCS)OCTF Operation Concept Task ForceOCU Operational Conversion UnitOCV Operational Coverage Volume *OCX New Object similar to VBXOD Organisation and Development (Unit attached to the Director General)ODA Open Document ArchitectureODAPS Oceanic Display And Planning System *ODC Office of Defence Cooperation ODETE On-line Data Exchange TerminalODF Oceanic Development Facility (ICAO)ODIAC, ODIAC-TF

Operational Development of Initial Air/Ground Data Communications Services

ODID Operational Display and Input Development ODIF Open Document Interchange FormatODIN (Swedish) Briefing System (AIS)ODP ATM Operational Requirements & Data ProcessingODP Open Distributed ProcessingODS Operational Display System (ESCO)ODS Operator input and Display System / Système d’entrée en machine et d’affichage

(FR)ODT Operational Requirements and ATM Data Processing TeamODU Output Distribution Unit OEC Organe Exécutif Central (CFMU) / Central Executive Unit (=CEU)OECD Organisation for Economic Co-operation and Development (= OCDE)OECD Organisation for Economic Co-operation and DevelopmentOEC-Est Organe Exécutif Central pour l’Europe Orientale (FR) (CFMU) / Central

Executive Unit East (=CEU-E)OEC-Ouest Organe Exécutif Central pour l’Europe Occidentale (FR) (CFMU) / Central

Executive Unit West (=CEU-W)OEM Original Equipment ManufacturerOFAC Office Fédéral de l’Aviation Civile (CH) / Federal Office for Civil Aviation (=FOCA)OFFPDR Off Predetermined RouteOFIR Oceanic FIROFIS Operational Flight Information SystemOFL Off-Line *OFS Ordered Field Sequencing (ASTERIX) OGM Objectives > Goals > MissionOH Operational HandbookOHA Operational Hazard AssessmentOHP Over Head ProjectorOHTF Operational Harmonisation Task ForceOI Operational Improvement

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OI Operational ImprovementOIDS Operational Information Display SystemOIS Obstacle Identification SurfaceOIT Organisation Internationale du Travail (=ILO)OJCT On-the-Job Conversion TrainingOJT On-the-Job Training * OJTI On-the-Job-Training Instructor *OL Operating Location OLDI On-Line Data InterchangeOLDI On-Line Data Interchange (automation in ATC)OLDINA OLNO, Diekirch, Nattenheim (Nattenheim area)OLDISP OLDI Specialist PanelOLEVAT On Line Exercise of Validation of Aircraft TrajectoriesOLR Off Load RouteOLRA Off-Load Route Activation MessageOLRCNL Off-Load Route Cancellation MessageOLRMOD Off-Load Route Modification MessageOLS Off Line SystemOM Ministerial OrderOM Outer Marker *OMC Operational Monitoring Complex ; Operational Monitoring Cell (ACAS, AIG Sub-

group)OMD Operational Management Domain OMG Object Management GroupOMG Operational Monitoring Group (ACAS)OMI Organisation Maritime Internationale (FR) / International Maritime Organisation

(=IMO)OMM Organisation Météorologique Mondiale (FR) / World Meteorological Organisation

(=WMO)OMT Object Modelling TechniqueONL On-Line *ONP Open Network Provision (Telecommunications)OOA Object Oriented Analysis OOD Object Oriented DesignOODBMS Object-Oriented Database Management SystemOOOI Out (Departure Block Time)-Off (Take-off)-On (Landing)-In (Arrival Block time)OOP Object Oriented Programming OOP Operational Outline ProgrammeOOR Outline Operational RequirementOP Operational (issues)OP Organisational ProductivityOPADD Operating Procedures for AIS Dynamic Data (EATCHIP)OPAL Optimisation Platform for Airports, including LandsideOPAT Office des Ports Aériens de Tunisie (FR) / Tunisian Office of Airports

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OPB Outer Performance Boundary (Tunnel Concept) *OPC Operational CommunicationsOPD Operational Procedures Document (EAD)OPLAN Operational Plan OPLINK Operational Data Link (Panel)OPM Operational Position ManagementOPM Office of Personnel ManagementOPMET Operational MeteoOPN Operational Planning Notes (MADAP-KARLDAP)OPNET Operational Network for ATS and System Management (Switzerland)OPR ATM Operational Requirements (EATCHIP Domain) ; ATM Working Rules and

Operational RequirementsOPS Operational Services, Centre of Expertise EECOPS OperationsOPSEC Operational SecurityOPSP Operations PanelOPSroom Operations Room OQPSK Offset Quadrature Phase Shift KeyingOR Operational RequirementORA Operational Research and Analysis GroupORB Object Request BrokerORCAM Originating Region Code Assignment MethodORD Operational Requirements Document (EATMS)ORM Operational Reply Message (CFMU)ORMAQ Operation Room Management Attitudes QuestionnaireORQ D-OTIS Request MessageORs Operational Requirements *ORSG Operational Requirements Sub-Group ORTF Operational Requirements Task ForceOS Operating SystemOSC Operations Steering Committee OSCAR Orbiting Satellite Carrying Amateur RadioOSD Operational Scenarios DocumentOSED Operational Service and Environment DescriptionOSF Open System (Software) FoundationOSF Open System FoundationOSG Operational Services Group (MAS)OSI Open Systems Interconnection *OSIE OSI EnvironmentOST Operational Support Traffic OSV Officier de Sécurité des VolsOTAN Organisation du Traité de l'Atlantique Nord (FR) (= NATO)OTD D-OTIS Delivery Message

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OTD Operational Target DateOTD Other Training Device *OTF Operational Task Force OTF Operational, Technical and Financial Working GroupOTF (VHF-OTF)

Operational VHF Task Force

OTF/BFWG Combined Operational, Technical/Budgetary & Financial Working GroupO-TGS ODS - Target Generation SystemOTH (R) Over The Horizon (Radar) OTP Overall Test PlanOTR Operational Turn AroundOTS Off-The-ShelfOTS Oceanic Track SystemOTS Organised Track SystemOTSG Operational Training and Selection GroupOTSG Operational Training and Selection GroupOTT D_OTIS Termination MessageOTV Orbital Transfer VehicleOUMSESTF Operational Use of Mode S Enhanced Surveillance Task ForceOUNS Operational Navigation System OURASIE Ourasie Toolkit, software X-windows toolkit built above Xt Intrinsics layer (CENA

in-house product)Own TCAS II equipped aircraft - source of TCAS event

PP Process LogP Prefix (CCITT X.121 Structure)P Prohibited AreaP&H Press and Hold (mouse)P,R,D Area Prohibited, Restricted, or Danger AreaP.ACCs Pairs of ACCsp.t.t Push-to-TalkPA Provisional AcceptancePA Precision Approach *PA Participating AreaPAA Plot Accuracy Analysis *PABX Private Automatic Branch eXchange PAC Pacific Region * (ICAO)PAC Preliminary Activation message (OLDI)PAD Packet Assembler DisassemblerPÄD Problemmeldungs- und ÄnderungsDienst (non-conformance reporting & change

system)PADIS Passenger and Airport Data Interchange StandardsPAK Pilot Acknowledgement (service)

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PTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

PALLAS Phased Automation of the Hellenic ATC System (new Greek ATC System)PAM Program for Analysis of MADAPPAM Pilot Acknowledgement MessagePAMCS Panel on Air Space Management and Control SystemsPAMPLAY PAM rePLAY system PAMS Published AIP Management SystemPANS Procedures for Air Navigation Services *PANS-ABC Procedures for Air Navigation Services - ICAO Abbreviations and Codes (ICAO

Doc. 8400)PANS-ATM Procedures for Air Navigation Services - Air Traffic Management (ICAO Doc

4444)PANS-OPS Procedures for Air Navigation Services * – Aircraft OperationsPANS-OPS/I Procedures for Air Navigation Services - Aircraft Operations - Flight Procedures

(ICAO Doc. 8168/I)PANS-OPS/II Procedures for Air Navigation Services - Aircraft Operations - Construction of

Visual & Instrument Flight Procedures (ICAO Doc. 8168/II)PANS-RAC Procedures for Air Navigation Services – Rules of the Air and Air Traffic ServicesPAPI Precision Approach Path IndicatorPAQ Position Analysis Questionnaire *PAR Planning, Analysis and ReportingPAR Precision Approach RadarPARADISE Prototype of an Adaptable and Reconfigurable ATM Demonstration and

Integration Simulator EnvironmentPARI Precursor, Action, Result, Interpretation PARI method Precursor, Action, Result, Interpretation Method *PARR Problem Analysis, Resolution and RankingPARZOC Parabolic Approximation of Aircraft Performance for use in a ZOCPAT Provisional Acceptance Testing (CNG - CBN) PATA Polish Air Traffic AgencyPATCG PHARE Advanced Tools Co-ordination GroupPATCHWORK Polish ATC Harmonisation Work programme (EAS)PATCO Professional Air Traffic Controllers Association (US)PATN PHARE experimental Aeronautical Telecommunication NetworkPATROCLOS Peripheral Airports Terminal Radars, ODS and Centrally Linked Operations

SystemPATs PHARE Advanced ToolsPATs PHARE Advanced ToolsPATWAS Pilot Automatic Telephone Weather Answering ServicePAU Primary Authorised UserPAX PassengersPB Project Board PBE Peripheral Bus Extender (CBN - CNG)PBL Problem-Based LearningPBRA Plot Based Resolution AnalysisPBX Private Branch eXchange

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PC Planning Controller ; Provisional Council (Eurocontrol)PC Personal ComputerPC Provisional Council (EUROCONTROL)PCA Physical Configuration AuditPCA Prior Co-ordination Airspace (Eurocontrol, FUA)PCB Printed Circuit BoardPCC Project Co-ordinating Committee (PETAL) PCC Peripheral Computer ComplexPCC Planning Co-ordination ControllerPCC Polygone Co-ordination Centre PCCB Program Change Control Board (FPPS/DECADE)PCD Personal and Career Development *PCD Probability of Code DetectionPCD Planning Controller DisplayPCFL Preferred Cruise Flight LevelP-channel Packet Mode Channel *PCI Permanent Commission for Investigation (on ATS incidents) ; Permanent

Committee of InquiryPCI Protocol Control Information *PCIP Pilot Conversion and Implementation Plan PCL Pending and Coast ListPCL Procedure Changeover Lines (IFF)PCM Pulse Code ModulationPCM Planning Co-ordination MessagePCMP Project Configuration Management Plan (MAS - ODS)PCMT Plan Commun à Moyen Terme / Common Medium-Term Plan (=CMTP)PCN Pavement Classification NumberP-Code Precise/Protected Code *PCP Project Control PlanPCPU PCM Central Processing Unit (VCS) PCR Periodic Contract Request (ICAO)PCR Post Conference ReportPCR Problem Change RequestPCS Process Control System *PCT Planning Control TheoryPCV Probability of Code ValidationPCX A window compatible BIT formatPD PHARE DemonstrationPD Pointing Device PD Plan DisplayPd, Pdet Probability of detection *PD/1 PHARE Demonstration 1PD/1+ PHARE Demonstration 1+

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PD/1++ PHARE Demonstration 1++PD/2 PHARE Demonstration 2PD/2+ PHARE Demonstration 2+PD/3 PHARE Demonstration 3PDA Plot Detection Analysis *PDA Planning Co-ordination Message Display AreaPDC Peripheral Device Controller PDC Pre-Departure Clearance (message)PDC Private Data ChannelPD-Channel Packet Data Channel *PDES Pulse Doppler Elevator ScanPDF Portable Data FormatPDF Percentage of Delayed Flights * (Delay Parameter Abbreviations)PDG Procedure Design GradientPDL Persistent Data LibraryPDME Precision Distance Measuring EquipmentPDN Public Data Network *PDOP Position Dilution of Precision *PDP Polar Diagram PlotterPDR Pre-Determined Route PDR Preliminary Design ReviewPDRP Problem Detection and ResolutionPDS Programme Development SystemPDTWG Plot Data Transmission Working GroupPDU Power Distribution UnitPDU Protocol Data Unit * (RMCDE)PE Protected EarthPE Processor Element (CBN - CNG)PE Process EngineeringPE 90 Parameters of Earth, 1990. Russian Geodetic System PEA Parameter and Environment AssemblerPECO Pays d’Europe Centrale et Orientale (FR) PEGASUS Pan-European Ground/Air Singl Unified ATM SystemPEL Planned Entry Level (to a sector or volume of airspace) (ODID)PELA Proficiency test in English Language for ATCOs *PEM Phone Emergency ModulePENS Pan-European Fixed Network ServicePENV Professional EnvironmentPEP Performance Engineering Programme (long-term scientific studies)PER Packet Encoding RulesPERT Programme Evaluation and Review TechniquePES Proposed Eurocontrol Standard DocumentPETAL Preliminary Eurocontrol Tests of Air/Ground data Link

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PEX PHIGS Extended X-Windows System PF Pilot FlyingPFA, Pfa Probability of False Alarm *pFAST passive Final Approach Spacing ToolPFD Primary Flight DisplayPFD Planned Flight Data (CFMU - CASA)PFD Probability of Failure DetectionPFE Path Following Error *PFI Private Finance InitiativePFL Planned Flight LevelPFLext Probability of Failure/Fault Localisation, externalPFLint Probability of Fault Localisation, internal PFM Pre-Flight Messages (EW)PFN Pulse-Forming-NetworkPFR Probability of Failure RepairPGMP Pilot Group on ATCO Manpower Planning PHA Preliminary Hazard AnalysisPHARE Poland, Hungary Aid for Restructuring of the Economy (European Commission)PHARE Programme for Harmonised Air Traffic Management and Research in

Eurocontrol * ; Programmed for Harmonised Research in Europe / Programme de recherche harmonisée de l’Organisation Eurocontrol en matière de gestion de la circulation aérienne (FR)

PHAROS Plan Handling and Radar Operating System (NL - Military)PHIDIAS Position Harmonisant et Intégrant des Dialogues Intéractifs (FR) / Harmonizing

and Interactive Dialogue Integrating PositionPHIGS Programmer's Hierarchical Interactive Graphics System PI Peripheral Interface (CBN - CNG)PI Procedure Turn to Intercept (ARINC 424 Path Terminator)PI Performance Indicator PIAC Peak Instantaneous Aircraft CountPIB Produit Intérieur Brut (FR)PIB Policy Information Base *PIB Pre-flight Information Bulletin (EAD)PICASSO Control, Analysis and Monitoring of the Spanish Air Navigation System.

Statistical applicationPID Pilot Information Downlink (service)PIM Programme Implementation ManagementPIP Plug In Panel PIP Product Improvement PackagePIREP Pilot Report (ICAO)PIRG Planning and Implementation Regional Groups (ICAO, al)PIU Parent IFPS UnitPKI Public Key InfrastructurePL Poland

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PL Pseudolite *PLANE Platform for Logistics and Aviation Networks in EuropePLANO Procedures Linked to Abating Noisy Operations (ANCAT TF)PLATON new RDPSPLB Personal Locator BeaconPLC Planning Controller (also known as Coordinator) PLL Phase Locked Loop *PLMN Public Land Mobile NetworkPLN Flight Plan Conformance (new name is FLIPCY)PLP Packet Layer Protocol *PM Progress MeetingPM Programme ManagementPM/FL Process Monitoring / Fault LocationPMB Project Management Bureau PMB Programme Management BoardPMC Project Management CellPMCG Preliminary Maastricht Co-ordination Group PMCS Performance Management Computer SystemPMCT People Management Core TeamPMD Pre-warning Message for Departure PME Pre-warning Message Entry PMO Pre-warning Message OAT PMP Project Management PlanPMR Steering Committee

Planning Monitoring and Reporting Steering Committee

PMS Performance Management / Monitoring SystemPMT Plan à Moyen Terme (MTP)PMW Project Management Workbench (IFPS) PMX Planning Message Exit PNF Pilot Not FlyingPNNI Private Network Node InterfacePNO Public Network OperatorPO Principle of OperationPoACCS Portuguese Air Command and Control SystemPoAF Portuguese Air ForcePOB Persons On BoardPOC Point of ContactPOD Port of DebarkationPOE Port of EmbarkationPOEMS Pre-Operational (development) European Mode S Enhanced SurveillancePOEMS Pre-Operational European Mode S Station / Station sol pré-opérationnelle du

Mode S en Europe (FR)POG Point of Gaze

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POP Point of PresencePOR INMARSAT Pacific Ocean RegionPOR Pacific Ocean RegionPoR Point of Risk *POS POSitionPositive RA RA applying minimum vertical rate (eg climb)POSIX Portable Operating System Interface for Computer Environments PPC Physical Protected CircuitPPC Policy Planning CommitteePPD Aircrew Preferences Downlink (Service)PPD Pilot References Downlink PPD Plans and Policy DivisionPPI Plan Position Indicator *PPI Points Per Inch or points per inchPPL Private Pilot LicensePPM Pages per MinutePPM Programme Portfolio Management (EATM)PPM Pulse Position Modulation *PPM/TF Task Force on the Possible Pricing MechanismsPPS Precision Positioning Service/System *PPS, pps Pulses Per SecondPPSN Public Packet Switching NetworkPQM Project Quality Manager PQP Programme Quality PlanPQP Project Quality PlanPR Plot ReconstructionPR Problem ReportPR Position ReportingPR Primary Radar *PR Pseudorange *PR, PRI Primary (radar or unit) PR/PSR Primary (Surveillance) RadarPRA Primary Rate AccessPRA Plot Resolution Analysis *PRAISE Preparation for Research and Development in Support of EATMS programmePRAISE Preparation of Functional Concepts from EATMS Operational RequirementsPRC EEC business area – support to performance review PRC Performance Review Commission (New Convention) ; Commission d’examen

des performances (FR)PRE Previous CentrePRE PreviewpreC PreCouncil (= to replace CE)Pre-OJT Pre-On-the-Job Training *

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Pre-Simul Pre-SimulationPREVAIL PReparation for EGNOS VAlidation In approach and LandingPREVI Data Processing system to support the forecast and regulation of the air traffic

(FR)PRF Percentage of Regulated Flights(Delay Parameter Abbreviations)PRF Pulse Repetition Frequency * (or recurrence)PRI Primary Surveillance RadarPRI Pulse Repetition Interval *PRIF PROC Interface Tool PRL Pilot Request, Level (service)PRM Precision Runway MonitorPRN Pseudo Random NoisePRN Code Pseudo Random Noise Code *P-RNAV Precision Area NavigationP-RNAV Precision RNAVProATN Prototype Aeronautical Telecommunications NetworkPROC Procurement (tool)PRODAT PROSAT Data Link ExperimentPROFI Multinational Project FinancingPROM Programmable Read Only Memory PRORES Problem ResolutionPROSAT Program Satellite (European Space Agency)PROSIT Problem SituationPROVE Pre-operational Validation and Experimental Trials PlatformPROVE European ATC Pre-Operational Validation and Experimental trials PlatformPRP Pulse repetition PeriodPRQ Pilot Request (service)PRR Performance Review ReportPRR Pilot Request, Route (service)PRS Picture Repetition Store PRS Performance Review SystemPRSG Performance Review Sub-GroupPRT Preferences ToolPRT Processing Response Time (Eurocontrol)PRU Performance Review Unit (New Convention) / Bureau d’examen des

performancesPS Power Supply (ACS)PS Problem Solver (PATs)PS Position SymbolPSA Passive Slot AllocationPSA Primary Subject AreaPSA Provisional Site Acceptance PSAP Presentation Service Access Point

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PSB Parallel System Bus (RADNET)PSC Project Steering CommitteePSC Project Safety CommitteePSC Performance, Standard, ConditionsPSDN Packet Switched Data Network *PSDN Public Switched Data NetworkPSE Project Safety EngineerPSE Primary Surveillance EquipmentPSG Programme Steering GroupPSMC-Channel

Packet System Management and Control Channel*

PSMSL Permanent Service for Mean Sea Level PSN Packet Switching NetworkPSP Primary Spare PartPSPDN Packet Switched Public Data NetworkPSR Primary Secondary RadarPSR Primary Surveillance Radar *PSS1 Private Signalling System 1PSSA Preliminary System Safety AssessmentPSSR Present Secondary Surveillance Radar -code- (MADAP)PST Pacific Standard TimePST Project Supervision Team (EATCHIP)PSTF Pension Scheme Task ForcePSTN Packed Switched Telecommunication NetworkPSTN Public Switched Telephone NetworkPSTN Public Switched Telephone Network PSV Pilotage sans visibilité (FR)PT PointPT PortugalPTE POEMS Test EnvironmentPTN Public Telephone NetworkPTO Public Telecom OperatorPTO (National) Telecommunications Service ProviderPTO Preferred Time OverPTOT Provisional Take Off Time (IFPS)PTP Part-Task Practice *P-t-P / pt to pt Point-to-PointPTRMC Prototype Team Resource Management CoursewarePTS PoinTS (route points) PTS Pre-Training Screen (US)PTSD Post Traumatic Stress Disorder *PTT Part-Task Trainer *PTT Post, Telephone and Telegraph (BE new Belgacom). Push-To-Talk

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PTT Push to TalkPTT (National) Telecommunications Service ProviderPTW Project Team WorkPU Processing UnitPUB Publications and Charts (AIS-TF)PUMA Performance Usability-Modelling of ATMPV Performance Verification PV Present ValuePVC Permanent Virtual Circuit *PVD Plan View DisplayPVT GNSS Position Velocity Time PWG Pensions Working Group PWP Physical Working PositionPWP Published Way Point (CFMU)PWR Power *PYM Payment MilestonePZ Portotroz (SI)PZ 90 Parameters of Earth 1990

QQ Quadrature Component (MTI)Q Atmospheric PressureQ&A Question and AnswerQ.23 Signalling system for PABXQ.SIG ATS-Q.SIG - standard for ATC. G/G voice communicationsQ23 ITU-T standardQA Quality Assurance *QAP Quality Assurance PlanQAR Quality Assurance RepresentativeQAR Quality Assurance Representative (DECADE)QC Quality Control (DECADE) QCM Quality Control ManagerQDM Magnetic Heading (ICAO)QDR Magnetic Bearing (ICAO)QF Quality Factor (CFMU)QFE Atmospheric Pressure at Aerodrome ElevationQFE Altimeter setting that will indicate aircraft’s height above the airfieldQFU Runway in useQHN Altimeter Sub-scale setting (RLD paper)QinetiQ Formerly known as the UK 'Defence Evaluation and Research Agency' (DERA)QM Quality Management or Quality ManagerQNE Standard pressure altimeter setting (1013.2 hPa)

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QTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

QNH Atmospheric Pressure at Nautical Height ; Q-code designation for atmospheric pressure at mean sea level

QNH/QFE Altimeter pressure settingsQoS Quality of Service *QP Quality Plan (MAS/DFS - ODS) QPSK Quadrature Phase Shift KeyingQQ QuestionQRA Who Are YouQRPS Route Points Store (Static Data Bank)QSIG Q-Reference Point Signalling (PSS1)QTA Cancellation of Flight MessageQTC Quick Transit Centre (Airports)QTE True bearing (ICAO)QTG Qualification Test GuideQuestionAIR Computer-based ATM questions bank *QUIS Questionnaire for User Interface SatisfactionQWERTY arrangement of keys on keyboard for English styleQWERTZ arrangement of keys on keyboard for German style

RR En-Route *R Reportr Rate of change (climb or descent)R RedR RomaniaR Restricted AreaR Team Collection of air navigation charges under bilateral agreements with non-

Contracting StatesR&D Research and DevelopmentR/T Radio Telephonic TransmissionR/T or RTF Radio Telephony *R+B Range and Bearing lineR2 Eurocontrol Signalling Protocol R2 European signalling standard (Voice communication)R2 Signalling system used for telephone exchanges RA Radio Access RA Routine Area *RA Risk Analysis * (TCAS)RA Registration AuthorityRA Radio AstronomyRA Resolution Advisory * (ACAS)RAA Regional Airline AssociationRAARR Radar Arrival *RAAS Radar à synthèse d’ouverture (FR) / Synthetic-Aperture Radar (=SAR)

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RTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

RAAS Regional Area Augmentation System RAC Resolution Advisory Complement *RAC RUHR Assistant ControllerRAC Rules of the Air and Air Traffic Services * (ICAO)RACE Runway Capacity EnhancementRACGAT Russian-American Air Traffic Coordination GroupRAD Requirements Application Document RAD RadarRADAC Radar Verification Equipment in NorwayRADAR Radio Detecting and RangingRADEP Radar Departure *RADIN Radar Data Interchange NetworkRADIN Radar Data Interface RADNET Radar Data Network (for interchange of radar data / Réseau intégré (pour

échange de données radar) (FR)RADVIEW Radar Verification Equipment in NorwayRAE Royal Aerospace EstablishmentRAF Reference ATN Facility (US/Eurocontrol common project for development of the

CAERAF)RAF Royal Air ForceRAG Range-Azimuth Gate GeneratorRAI Italian Aeronautical Certification AuthorityRAID Redundant Array of Inexpensive DisksRAIM Receiver Autonomous Integrity Monitoring *RAM Responsability Assignments Matrix *RAM Random Access Memory ; Reliability, Availability and MaintainabilityRAMBO Reliable, Available, Maintainable, Benefits, Objectives RAMCC Regional Air Movement Control CentreRAMS Reorganised ATC Mathematical Simulator (EEC)RAN Regional Air Navigation (meeting)RANSU Regional Air Navigation Service Unit (DFS)RAOC Regional Air Operation CentreRAP Resource Allocation ProcessRAP Recognised Air PictureRAP Required Aircraft PerformanceRAPCON Radar Approach Control Facility *RAPID Recognised Picture Identification DistributionRAPNET (European) Regional Aeronautical Packet Switched Network (CBN + DAKOS)RAPNET "Four States" Area NetworkRAPPI Radar Access Plan PositionRAR Restricted Area Requested RAR Risk Analysis ReportRARAD Radar Advisory *

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RAS Resource Allocation SystemRASA Requirements, Analysis, Strategy and Architecture (advisory group of

Surveillance Team)RASC Regional AIS Service CentreRASCAL Radar Station Coverage CalculatorRASCAL Radar Sharing Calculation RASIF Radar Simulator FlugsicherungRASP Radar Application Specialists Panel (MTPA / SSR)RASP Radar Surface PictureRASS Radar Analysis Support System RASS-C Radar Analysis Support System – Centre Level *RASS-P Radar Analysis Support System - Plot dataRASS-PDP RASS - Polar Diagram Measurement FacilityRASS-S Radar Analysis Support System – Sensor LevelRASS-T Radar Analysis Support System - Track dataRASTA Radar Statistics Program *RASV Responsibility Air Space Volume *RATE Remote Air Traffic Services TerminalRATS Radar Analysis and Test System R-ATSU Air Traffic Service Receiving Unit *RATT Radio Teletype Rb RubidiumRBP Radar Bypass Processor (MAS UAC)RBS Radio (Telephony) Backup System RC Radar ControllerRCA Reduced Co-ordination Airspace *RCC Rescue Co-ordination Centre *RCD DCL Request MessageRCDS Radio Channel Distribution and SwitchingRCDSS Radar Control and Display SubsystemRCE Radio Control EquipmentRCF Radio Communications Failure RCFEP Radar Data Communications Front-End Processor (RADNET)RCGSP Review of the General Concept for Separating Panel (ICAO)R-Channel Random Access Channel *RCL Executive (i.e. Radar) ControllerRCM Radar Co-ordinator (Controller) Message (Mil. ECM)RCM Statement of Basic Operation Requirement, Planning Criteria & Methods of

Application (ICAO/AIS)RCO Remote Communications Outlet *RCO Route Charges Office (National Route Charges Office) / Centre émetteur

national (FR)RCO Reduce Cumulative OverloadsRCP Required Communication Performance

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RCR Runway Condition ReadingRCRT Refresh Cycle Response Time RCS Remote Control SystemRCS Radar Cross Section *RD Routing Domain *RD Risk Display (ODID)RDBMS Relational Database Management SystemRDC Routing Domain Confederation *RD-Channel Random Data Channel *RDD Raw Data DisplayRDE Radar Data EquipmentRDF Radio Direction Finding *RDG Radar Data GeneratorRDI Routine Domain Identifier *RDIF Radar Data Interchange Format RDM Running Display MessageRDP Radar Data ProcessorRDPP Radar Data Post ProcessorRDPS Radar Data Processing System *RDQC Radar Data Quality ControlRDR Radar Data RecordingRDSS Radar Determination Satellite SystemRDTE Research, Development, Trials and Evaluation RE Real EquipmentRE Reserved Expansion IndicatorReal Real time *Real-time FDMD

Real-time Flight Data Processing Management and Distribution

REC Request EOBT ChangeREC Recall (ICAO) / RECording REC RecommendationRecDPS Recording Data Processing System (PALLAS System)REDAN Spanish CAA Data Network.REF ReferenceREFGHMI Reference generic HMIREG RegulatorsREJ Rejection MessageREL ReleaseREM Roentgen Equivalent Man REM Radio Emergency ModuleREM Rapid Eye MovementREMOCO Remote Control (Supervision System)REMP Radar Replacement and Modernisation Programme

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RENAR Réseau de la Navigation Aérienne (F network)REP ReportREP Field Repetition IndicatorRER Residual Error RateRER ReroutingRES Radar Environment SimulatorRES Radar Environment SystemRESA Runway End Safety Area (ICAO)RESP Response (ICAO)RESTQ Recovery Stress Questionnaire RET Airborne & ground retrofit (issues)RET Rapid Exit Taxi WayRET Revised EOBTRETD Revised Estimated Time of DepartureREV REVision / REVise (message)RF Radius to a Fix (ARINC 424 Path Terminator)RF Radio FrequencyRFC Request for CommentRFC Radar Fallback Communication SystemRFCA Panel on Route Facility, Cost Accounting and Cost Allocation (ICAO)RFCP Route Facility Costs Panel (ICAO)RFEP Radar Front End ProcessorRFF Radar Fall-back Facility RFG Radio Frequency GeneratorRFI Radio Frequency InterferencesRFL Requested Flight Level *RFLT Radio Frequency Unit *RFM Remote Field MonitorRFP Request for ProposalRFP Replacement Flight Plan (IFPS)RFPD Repetitive Flight Plan DataRFPS Radar data Front Processing System (PALLAS system)RFQ Request for Quotation RFS Radar Fallback SystemRFS Random Field Sequencing (ASTERIX)RFU Radio Frequency Unit *RFZ Restricted Flying ZoneRG Review GroupRGB Red Green BlueRGCSP Review of General Concept of Separation Panel * (ICAO)RGIC Ranging Integrity ChannelRGS Remote Ground StationRGS Regional Ground Station

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RH Radar HeadRHCP Right Hand Circular Polarisation RHD Radio (or Radar) Horizon DistanceRHEA Role of the Human in the Evolution of Air Traffic Management systemsRHP Radar Head ProcessorRI Route InterceptRIB Routing Information Base *RIC Radar Integration ControlRICE RTF Interface Control EquipmentRIG Regional Implementation GroupRIMS Ranging and Integrity Monitoring Station (GNSS-1/EGNOS)RINAL Portuguese Data Network RIRP Runway Incursion Reduction ProgramRIRT Russian Institute of Radio Navigation and Time (St. Petersburg)RIS Relational Interface SystemRISC Reduced Instruction-Set Computer RISE Retrieval and Interchange of Standards in EuropeRISO Riso National Laboratory (Denmark)RISP Radar System Improvement ProgrammeRIT RADNET Implementation and Integration Team RITA Réseau Intégré de Transmissions Automatiques (FR)RITA Replay Interface for TCAS AlertsRJC Airspace Crossing Reject Message (Airspace Crossing Dialogue)RLB Rolling BallRLBCS Rolling Ball CallSign (input) RLD Rijksluchtvaartdienst (NL)RLIM Radar Data Line Interface Module RLP Remote Line PrinterRLSM Reduced Lateral Separation MinimumRLW Regie der LuchtWegen (BE) / Régie des Voies Aériennes (BE) / Belgium Aviation

AuthorityRMA Reliability, Maintainability, AvailabilityRMCD Remote Master Control DeskRMCDE Radar Message Conversion and Distribution Equipment RMCS Remote Monitoring and Control SystemRMK Remarks RMM Remote Maintenance MonitoringRMP Required Monitoring PerformanceRMP Radio Management Panel RMPS Radar Message Processing SystemRMR Roke Manor ResearchRMS Root Mean SquareRMS Error Root Mean Square error.

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RMScv See RMSk (infinite) *RMSpv RMS peak value.RNAV Area Navigation * / Navigation de surface (FR) (OACI)RNC Required Navigation Capability RNDSG Route Network Development Sub-Group (EATMP)RNIS Réseau National à Intégration de Services (FR)RNLAF Royal Netherlands Air ForceRNP Required Navigation Performance *RNP5 Required Navigation Performance 5RNP-AIRNAV Required Navigation Performance - Area NavigationRNPC Required Navigation Performance Capability/CriteriaRNPTF Required Navigation Performance Task ForceRO RomaniaRO Router FunctionROAD Representation of Overall ATM DevelopmentROBIN Road billing networkROC Rate of ClimbROC/D Rate of Climb/Descent *ROD Rate of DescentROF Request on Frequency (Message)ROI Return On InvestmentRole Role-play *ROM Read Only Memory (CD)ROMATSA Romanian Air Traffic Services AdministrationROMBULPO Romania, Bulgaria and Poland *ROPA RAPNET Operations and Planning AgreementROR Range Only RadarROS Route Orientation Scheme ROSAS Regional Organisation of the Sequencing and Scheduling of Aircraft SystemROSE Remote Operations Service ElementROSE Rational Object oriented Software EngeneeringROT Runway Occupancy TimeROZ Restricted Operations ZoneRP Reporting PointRP Radar PostRPC Regional Planning CriteriaRPF Rapid Prototyping FacilityRPI Radar Position Indication *RPL Stored Flight Plan RPL Repetitive Flight Plan * / Plan de vol répétitif (FR)RPM / rpm Revolutions Per MinuteRPOA Recognised Private Operating AgencyRPS Recording and Playback System / Route par pays survolé (FR) (= RSO)

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RPS Radar Position Symbol *RPT Regular proficiency TrainingRPU Radar Processing UnitRPV Remotely Piloted VehicleRPVD Radar Plan View DisplayRPY ReplayRQL Request NOTAM ListRQM Radar Quality MonitoringRQN Request NOTAM RQP Request Plan MessageRQP Request for Flight PlanRQT ReQuesTingRRA Radar Recording AnalysisRRC Recording Replay Computer (ODS)RREC Repetitive Flight Plan Recovery Message (IFPS)RRI Reference Router ImplementationRRP Re-routing Proposal MessageRRP Remote Radar PostRRR Radar Recorder (manufactured by COMSOFT)RRR Radar data Recording and Replay system (RADNET / application software

COMSOFT)RRU Remote Radio Unit RRV Referred Revision Message (OLDI)RS Radar SystemRS NASC providing Regional Support (EAD)RS Reference StationRS NATS Recruitment Services NATSRSA Radar Service AreaRSAP (RADNET) RMCDE Service Access PointRSAP Replenishment Spares Acquisition ProgramRSC Rescue Sub CentreRSFTA Réseau de Service Fixe des Télécommunications AutomatiquesRSG Route Structure GroupRSG Research Study Group RSI Radiation Status IndicatorRSL Raytheon Systems Limited RSLS Receiver Side Lobe Suppression *RSM Radar Service Message (RMCDE/ RADNET)RSMC-Channel

Random System Management Control Channel *

RSMTF Radar Separation Minimum Task ForceRSO Route per State Over-flownRSO Reduced Spacing Operations

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RSOQ Radar Stores Occupancy QueryRSP Required Surveillance PerformanceRSPD Reported Speed RSPL Recommended Spare Parts ListRSRE Royal Signals and Radar EstablishmentRSS Radar Separation StandardRSS Radar Sub-SystemRSS ROOT Sum SquaredRSSP Radar Systems Specialist Panel RSTCA Redevance pour services terminaux de la circulation aérienne (FR) /

Approach/Departure chargesRstd Restricted (Time-Restricted Learning) *RSURTF RASS-S Upper Requirements TFRSUS RPL Suspension Message (CFMU) RSYD Release Subject to Your DiscretionRT Real Time *RT Radio TelephonyRTB Radar Tool BoxRTC Radio Transmission ControlRTC (European) Regional Technical Conference RTCA Radio Technical Commission for AeronauticsRTCA Requirements and Technical Concepts for Aviation. See also in Part II RTCA DO-

…RTD Research and Development of TechnologiesRTE-T Réseau transeuropéen de Transport (FR)RTF SRC Requirements Task ForceRTF or R/T Radio Telephony *RTFM Regulated Tactical Flight Model (CFMU) RTI D-RVR Delivery MessgeRTIS Road Travel Information ServicesRTLS Return To Launch Site *RTMDE RADNET Test Monitoring and Demonstration Equipment (colour screen)RTO Ready for Take Off, Reduced Take-Off and LandingRTOS Real Time Operating SystemRTPC Réseau Téléphonique Public Commuté (FR) / Public Switched Telephone

Network (PSTN)RTPTS RouTe PoinTSRTQC Real Time Quality ControlRTQC/A Real Time Quality Control / Assessment RTR Remote Transmission / ReceiverRTR D-RVR Request MessageRTS Real Time SimulationRTSE Reliable Transfer Service ElementRTSIM Real-Time Simulation

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RTT Ready to TaskRTT D-RVR Termination MessageRTT Regie van Telegraaf en Telefoon (Belgacom) (BE)RU Russian Federation (ISO Country Code)RU Regulation Unit (Eurocontrol Unit)RUG RASS Users Group RVA Régie des Voies Aériennes (B)R-VKL Radar (executive-) controllerRVR Runway Visual RangeRVSM Reduced Vertical Separation Minimum *RVSM Entry Point

Reduced Vertical Separation Minima Entry Point *

RVSM Exit Point

Reduced Vertical Separation Minima Exit Point *

RVV Runway Visual ValueRWEWP Runway End Way-point *RWIWP Runway Intercept Way-point *RWY RunwayRWY WP Runway WaypointRX Receiver Station

Ss Second (unit of time)S SwedenS1 The future (desired) stateSA Selective Availability *SA Skill Acquisition *SA SatelliteSA Salivary CortisolSA Separation AssuranceSA Situational Awareness *SA Security ArchitectureSA Degradation

Selective Availability degradation (of satellite signals)

SA FG Surveillance Architecture Focus GroupSA/BARS Situation Awareness Behaviourly Anchored Rating ScalesSAAM System for Assignment and Analysis at a Macroscopic level (8.33 User Guide)SABENA Société Anonyme Belge d'Exploitation de la Navigation Aérienne (FR)SABET Study of an ATC Baseline for the Evaluation of Team configurationsSAC Strategic Air CommandSAC System Assisted Co-ordinationSAC System Area CodeSAC Source Area Code (ASTERIX) SACADO SASS-C Advanced Development Office

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STip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

SACEUR Supreme Allied Commander EuropeSACHA Separation and Control Hiring Assessment (US)SACLANT Supreme Allied Commander AtlanticSACMAS SASS-C Development, Maintenance and SupportSACMO SASS-C Management OfficeSACON Slovak Aeronautical Communication NetworkSACSO SASS-C Support OfficeSACTA Sistema Automatizado de Control del Tráfico Aéreo (ES) / Spanish Automated

ATC System / Semi-Automatisation de Contrôle du Trafic Aérien (FR)SAD System Architecture DocumentSADIS Satellite Distribution of World Area Forecast System / ICAO Group SADIS (Swedish) Satellite Distribution SystemSAE Society of Automotive Engineers SAF Safety (EATMP domain)SAF EEC business area – support to safety monitoringSAF BD Safety Enhancement Business Division (Eurocontrol - DAP Directorate)SAFA Working Group on Safety of Foreign Aircraft (ECAC)SAFER Safety and Errors *SAFI Safety Monitoring for IndicatorsSAGAT Situation Awareness Global Assessment TechniqueSAI System Architecture InterfaceSAICO Swedish Aeronautical Information Computer Aided systemSAL Slot Allocation List (CFMU)SALADT Screening Angle Analysis Digitised Terrain * SALGOS Système d’Aide en Ligne à la Gestion Opérationelle de la Salle (FR)SALIANT Situation Awareness Linked Indicators Adapted to Novel TasksSALSA Situation Awareness bei Lotsen der Streckenflugkontrolle im Kontext von

Automatisierung (situation awareness of en-route air traffic controllers in the context of automation)

SAM South American Region *SAM Slot Allocation Message (CFMU - CASA) SAMHS Spanish Aeronautical Messages Handling SystemSAMSO US Air Force Systems Command / Space and Missile Organization (now Space

Division)SAMTF Safety Assessment Methodology Task ForceSAN Satellite Access NodeSANe Skill Acquisition NetworkSAP System Access ParametersSAP Service Access Point *SAP Service Access Point * (RMCDE)SAP Surveillance Appraisal ProgrammeSAPPHIRE Satellite and Aircraft Database Programme for System Integrity ResearchSAPS Situation Awareness ProbeSSAR Search and Rescue

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SAR Stand-Alone Receiver SAR Synthetic Aperture RadarSARP Signaal Automatic Radar Processing (NL)SARPs Standards and Recommended Practices (ICAO)SARSAT Search and Rescue Satellite Aided TrackingSART Situational Awareness Rating TechniqueSAS Single Attachment Station (FDDI)SASHA Situation Awareness for SHAPESASHA_L Situation Awareness for SHAPE on-LineSASHA_Q Situation Awareness for SHAPE QuestionnaireSASKI Name of an ATS Route reporting pointSASMAS SASS-S Development, Maintenance and SupportSASS Surveillance Analysis Support System * (ATC)SASS-C Surveillance Analysis Support System - CentreSASS-C DMSS

SASS-C Development, Maintenance, Support and Services

SASS-S Surveillance Analysis Support System – SensorSAT Simulation Assessment TeamSAT Satellite(s) SAT Static Air TemperatureSAT Systems Approach to Training *SAT Site (System) Acceptance TestSAT Software Acceptance TestsSATCAS Selenia Air Traffic Control Automated SystemSATCNS Satellite Communications Navigation and SurveillanceSATCNS WG Satellite CNS Work GroupSATCO Signal Automatic ControlSATCOM Satellite Communications SATI SHAPE Automation Trust IndexSATNAV GNSS

Satellite Navigation Sub-Group (NAVSEP TF)

SATORI Systematic Air Traffic Operations Research Initiative (US)SATP Software Acceptance Tests PlanSATS Simulator System for Air Traffic ServicesSATSA Swedish ATS AcademySAVVAN Système Automatique de Vérification en Vol des Aides à la Navigation (FR)SAW Surface Acoustic Wave Filter *SB Service BulletinSBAS Space/Satellite Based Augmentation SystemSBR Spaceborne RadarSBSR Space Based Secondary RadarSBT Self Briefing Terminal SBU Service Business Unit

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SC Standing CommitteeSC Special CorridorSC Senior ControllerSC Sector Co-ordinator SC Single Click (Mouse Input)SC Security Council (UN)SC Stack ControllerSC Simultaneous CallSCAA Swedish Civil Aviation AuthoritySCAA Servicio de Control de la Circulación Aérea (ES)SCAA Slovenian CAA SCAN Swiss Control Area NetworkSCAT Supersonic Civil Air TransportSCAT-1 Special Category 1SCAT-1 Approach

Special Category 1 Approach *

SCATANA Security Control of Air Traffic and Air Navigation AidsSCATCC Scottish Air Traffic Control CentreSCC Satellite Control CentreSCCB Software Configuration Control BoardSCDT Selected Controlled Departure TimesSCEAP Steering Committee for External Assistance ProjectsSCEPC Senior Civil Emergency Planning CommitteeSCF Standing Committee on FinanceSCG System Concept Group SCHUKO Schutzkontakt (DE) (earthing contact)SCIA Simultaneous Converging Instrument ApproachesSCM Subcontractor ManagerSCOATCC Scottish Oceanic Air Traffic Control CentreSCORS Surveillance Concepts and Operational RequirementsSCP Support Computer ProgrammeSCPC Single Carrier per ChannelSCPS Satellite Communications Protocol StandardSCR ScrollSCRAD Steering Committee for Research, Analysis and Development SCRR Service Central de Redevances de RouteSCS Strategy Concept & System (EATMP Unit) SCSI Small Computer-System Interface SCT Surveillance Coordination Team SCTA Service du Contrôle du Trafic Aérien (DGAC, DNA, France)SCU Satellite Communications UnitSCU Support CWP-Unit SCV Sub-Clutter Visibility

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SD Statistical DisplaySD Senior Director, EATM Service Business UnitSD Software DevelopmentSD Serial DiallingSD Specialist DomainSD Standard Deviation *SD’xx’ Specialist Domain ‘number’ (EATCHIP) SDA Système de Détection Aéroporté (FR) / Airborne Early Warning and Control

System (=AWACS)SDB Static Data Bank (MADAP)SDD Software Design DocumentSDD Synthetic Data DisplaySDD Surveillance Data DistributionSDDLC System Design and Development Life CycleSDE (EUROCONTROL) Senior Director, European Air Traffic Management

ProgrammeSDE System Development EnvironmentSDG Sensor Data GeneratorSDI Single Document InterfaceSDK Software Development KitSDL Standard Distribution ListSDLC Synchronous Data Link Control procedures SDLS Satellite Data Link SystemSDM System Definition Manual (INMARSAT)SDO Selected Display Option (ODID)SDO Static Data Operations (Eurocontrol)SDO Supplementary Display OptionSDOE Senior Director Operations and EATCHIP / Director principal Operations et

EATCHIP (FR)SDP Surveillance Data Processing (Sub-group CCT/EATCHIP)SDP Second Development ProjectSDP Simulator Development programmeSDP Software Development PhaseSDP Software Development Plan SDPD Surveillance Data Processing and DistributionSDPDS Surveillance Data Processing and Distribution SystemSDPS Surveillance Data Processing System (ICAO)SDPTF Static Data Procedure Task ForceSDR System Design ReviewSDT Stack Departure Time *SDTF SYSCO Development TFSDU Satellite Data Unit *SDU Static Data Update messageSDV Simulator Development

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SE System Engineering or System EngineerSE SwedenSE South / EastSE Simulation EngineSE Strategy Element SEAT Site Equipment Acceptance Testsec SecondsSECAM Safety, Efficiency and Capacity in ATM MethodologiesSECRA Secondary Radar *SEE Software Engineering EnvironmentSEL Sector List WindowSELCAL Selective Calling * (System)Self Self-paced LearningSELREL Selective ReleaseSEM Semmerzake SEMP Software Engineering Management PlanSEP Spherical Error Probable *SEP Selective Employment PlanSEP Separation of AircraftSEROS Semmerzake Radar Operating System (B / Military)SES Supplementary Equipment and ServicesSEU Software Engineering unitSF Surveillance FunctionSF FinlandSF Scaling FactorSFACT Service de la Formation Aéronautique et du Contrôle TechniqueSFC Surface (Ground Level / Sea Level) SFD Start Frame DelimiterSFI Synthetic Flight InstructorSFIE Syndicat des Fonctionnaires Internationaux et Européens (FR) / Union of

International and European Civil Servants (=UIECS)SFL Supplementary Flight LevelSFLA Assign SFLSFM Simulation Facility Management (at EEC)SFM Simulation Facility ManagementSFMC Sickness Fund Management CommitteeSFOR Stabilisation Force (Sarajevo)SFPL System Flight Plan ProcessingSFPL Short Flight Plan (FDPS)SFT Simplified Fast Time SimulationsSG Safety Group SGAMI Select Group for Assessing Manpower Issues

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SGBD Système de Gestion de Base(s)/Banque(s) de Données (FR) / Database/Databank Management System (=DBMS)

SGC Swept Gain ControlSGCAS Study Group on Certification of Automatic Systems SGR Study Group for Route ChargesSGR Study Group of the enlarged Committees for Route Charges (Eurocontrol)SGS 85 Sovietic Geodetic SystemSGSI Subsystema Grabador y Servidor de Información (ES) / Recording and Data

server subsystemSHA Safety Hazard AnalysisSHACC SHAPE Airspace Coordination CentreSHANDAP Shannon Data Processing (System)SHAPE Solutions for Human Automation Partnerships in European ATM *SHAPE Supreme Headquarters Allied Powers Europe SHEL Software, Hardware, Environment, LivewareSHEL Model Software – Hardware – Environment – Liveware ModelSHF Super High Frequency *SHF Super High FrequencySHL Saville and Holdsworth Ltd.SHORAN Short Range NavigationSI Selective InterrogatorSI Sector IndicatorSI Situational Interview SI Slovenia, Republic of SloveniaSI Surveillance IdentifierSI International System of UnitsSIA Service d’Information AéronautiqueSIC Sector Intercom (VCS)SIC Source Identification CodeSIC Subject Indicator CodeSIC System Identification CodeSICASP Secondary Surveillance Radar Improvements and Collision Avoidance System

Panel * (ICAO)SICCAP Système Intégré de Commande et de Contrôle Aérien du Portugal (FR)SICT System Implementation Coordination Team SICTA Italian Consortium for the Applied ATM Research SID Standard Instrument Departure (Route) *SID/STAR Standard Instrument Departure / Standard Arrival RouteSIE Standard Interface EquipmentSIF Selective Identification FeatureSIGMA Systemintegreging Gemensam Maskinvara (SE) / System Integration in Common

HardwareSIGMET Significant Meteorological Information (broadcast warnings of weather hazards)SIL Safety Integrity Level

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SIL Sector Inbound List WindowSIM Simulator */ Simulation(s) (EEC service)SIM Subscriber Identification Module SIM-5 Simulation Modernisation Project (EEC)SIMM Symbolic Integrated Maintenance ManualSIMMOD Simulation ModelSimul Simulation *SINTAC Système Intégré d'Identification, de Navigation, de Contrôle de Trafic,

d'Anticollision & de Communication (FR)SIO Sector Input Operator (MAS Ops Room)SIOP Society for Industrial and Organisational Psychology, Inc.SIP SMDS Interface ProtocolSIP Slot Improvement Proposal Message (CFMU)SIR Serveur d'Information Radar (FR) [Radar Information Server]SIRO Simultaneous Intersecting Runway Operations SIROCCO Study of the Impact of Revised Operational Concepts on the CNS/ATM ODP

ModelSIS English Standard for DocumentationSIS Signal In SpaceSIS Special Information SystemSIS BD Stakeholder Implementation Business Division (Eurocontrol - DAP Business

Directorate)SISG Safety Improvement Sub-GroupSIT System Integration Team (EATCHIP)SIT Subsystem Integration Test (DECADE)SIT Software Integration TestSIT Slot Issue Time Parameter (CFMU)SITA Société Internationale de Télécommunications Aéronautiques (FR) / Airline

telecommunications and Information ServiceSITAP Simulator for Transportation, Analysis and Planning SITD Systems Integration and Test Department (ODS)SITP Software Integration Test PlanSJA Strategic Job AnalysisSK Slovakia, Slovak RepublicSKIP SKIP a sectorSLA Service Level Agreement SLAP Slot Allocation ProceduresSLAR Side-Looking Airborne RadarSLB Side Lobe BankingSLC Side Lobe CancellationSLC Slot Cancellation MessageSLI Supplementary Level Inbound (ODID) SLM Standard Length Message * (Mode S)SLO Supplementary Level Outbound (ODID)

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SLOA Stakeholder Lines of ActionSlot An arrival or departure time window reserved for a flight.SLP Speed Limiting PointSLR Satellite Laser RangingSLS Side Lobe Suppression *SLS Service Level SpecificationSLT Scheduled Landing Time *SLT Slot AllocationSLV Statens Luftfartsvaesen (CAA/DK)SLW Sector Load WindowSLW Selected Label Window SM Security ManagerSM Stack ManagerSM Systems ManagementSMAA Study for Mediterranean Area ADSSMAE Systems Management Application Entity *SMAN Surface Management (APATSI)SMART Specific, Measurable, Agreed, Relevant, TimelySMART Simulator for Multi-radar analysis for realistic Trade / Traffic *SMART Self-Managed Arrival Resequencing Tool SMAS STATFOR Medium-Term Forecast Access SystemSMAS Service Mobile Aéronautique par Satellite (FR) / Satellite Mobile Aeronautical

ServiceSMAW Safe Minimum Altitude WarningSMC Station Monitoring and Control (RMCDE) SMC System Monitoring and Computer / Control SMC Systems Management ConceptSMD Storage Module Device SMDE Software Maintenance and Development EnvironmentSMDS Switched MultMegabit Data ServiceSME Subject Major/Matter ExpertSMEQ Subjective Mental Effort QuestionnaireSMG System Management Group of the AAGSMGC(S) Surface Movement Guidance and Control SystemSMHI Swedish government owned (civil) MET InstituteSMI Special Message Identifier (ACARS message Type B) SMI Stakeholder Relations Management and International Co-ordination (EATMP

Unit)SMIDTS Synthetic Movings Image Didactic / Tower Control Simulator (RLW/RVA)SMITF Safety Monitoring and Improvement Task ForceSMM Sector Monitor Message (RMCDE)SMM Safety Management ManualSMP Simple Management Protocol

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SMR Surface Movement Radar *SMS Safety Management SystemSMSS Surfface Movement Surveillance System (airports)SMSTR Systems Management StrategySMT Station Management (FDDI / RMCDE)SMTP Simple Mail Transfer ProtocolSMX Sub-Multiplexer SN System NotamSN, S/N Signal-to-NoiseSNA System Network Architecture (IBM Network)SNA Satellite Navigation ApplicationSNAcF Subnetwork Access Function *SNAcP Subnetwork Access Protocol *SNASG, SNA-SG

Satellite Navigation Applications Sub-Group

SNDC Subnetwork Dependent Convergence Function *SNDCF Sub-Network Dependent Convergence FacilitySNET Safety Nets SNICF Subnetwork Independent Convergence Function *SNIR, S/N Signal-to-noise ratio *SNME Subnetwork Management Entity *SNMP Simple Network Management Protocol (RAPNET - CNG-)SNOWTAM * NoTAM on SNOW Conditions (Message containing snow fall information)SNPA Subnetwork Point of Attachment *SNR Signal-to-Noise Ratio *SO Standards Office (Eurocontrol)So The Present (undesired) state SO Specialist Objectives *SOC System / Sector Operations CentreSOC Start of ClimbSOE Software EngineerSOF Stand-alone Operations FacilitySOFIA Sequentially Outlining and Follow-up Integrated Analysis (EUROCONTROL

Headquarters, EATMP,DSA, SQS)

SOFREAVIA Société Française d'Etudes et de Réalisations d'Equipments Aéronautiques (FR)SOGITS Senior Official Group in IT StandardisationSOIR Simultaneous Operations on parallel (or near-parallel) Instrument RunwaysSOL Sector Outbound List (MDP)SOP Standard Operating Procedures *SOR State of ReadinessSORA Safety Occurrence Reporting and Assessment in ATMSOSG Safety Oversight Study Group (ICAO)SOTA South Oceanic Transition area

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SOW Statement of Work (ODS)sp Ground SpeedSP Service ProviderSP Special pointSP Special Purpose Indicator (ASTERIX)SP Standard PrecisionSP Succession PlanningSP System Parameter *SPACDAR Specialist Panel on Automatic Conflict Detection and ResolutionSPAF Strategic Performance Analysis and ForecastSPAM Situation Present Assessment MethodSPAS Sensor Performance Analysis Standard SPDA Surveillance Data Processing System Processing Delay AnalysisSPECI Aviation Selected Special Weather ReportSPES Single Pan-European SkySPF Strategic Performance FrameworkSPF Strategic Performance FrameworkSPF Scratch Pad FieldSPG Special Planning Group SPG SRC Strategy and Policy GroupSPI Special Pulse (Position) Identification (SSR)SPL System Flight PlanSPMP Software Project Management Plan (ODS)SPN Short Plan Input SPO Special Project OfficeSPORA Specialist Panel on Operational Research and Analysis SPR Strip PrinterSPR BD Sector Productivity Business Division (Eurocontrol - DAP Business Directorate)S-P-R-c Stimuli, Processing, Response, controlled executiveSPS Siemens Plessey SystemsSPS Standard Positioning Service *SPS STDMA/VDL Mode 4 Performance SimulatorSPSG Spectrum Protection Steering Group (IATA)SPSS Statistical Package for the Social Sciencessq. in. Square Inchsq-cm cm2SQE Software Quality Engineer (DECADE)SQL Structured Query Language SQM Surveillance Quality MonitoringSQS Safety, Quality Management, and Standardisation (EATMP Unit)SQU Squelch (VCS)SR Slovak RepublicSR Study Report

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SRA Surveillance Radar ApproachSRB Solid Rocket BoosterSRC Safety Regulation Commission (New Convention) ; Commission de

réglementation de la sécurité. See SRUSRD System (or Software) Requirements Document SRD System Research and Development SRDTF System Research & Development Task ForceSRE Surveillance Radar Element of PAR SystemSRE Slant Range Error *SRG Safety Regulation GroupSRI Stanford Research InstituteSRI System Replay and InvestigationSRK Skill-Rule KnowledgeSRM Sector Revision MessageSRM Slot Revision MessageSRP Slot Revision Proposal (CFMU - CASA)SRQ Slot Request SRR System Requirements ReviewSRR Slot Revision Request (CFMU - CASA)SRS Schéma d’acheminement standard (FR)SRS Software Requirements SpecificationSRS Standard Routing SchemeSRSG Safety Regulation Sub-GroupSRT Single Radar TrackerSRT Sort Route Transparent SRU Safety Regulation Unit (to support SRC). See SRC / Bureau de Réglementation

de la Sécurité (FR)SRU Shop Replaceable UnitSRV Server SS Sector SupervisorSs secondsSSA Smallest Space AnalysisSSA System Safety Assessment SSAP Source Service Access Point (RMCDE / RADNET)SSAP Selector

Session Service Selector *

SSB Single Side BandSSBA Suite Synthétique de Benchmarks de l'AFUU (FR) SSD Synthetic Situation DisplaySSDD System/Segment Design DocumentSSDG Surveillance Strategy Drafting GroupSSE Sum of Squared Errors SSEA Surveillance Data Processing System Systematic Error AnalysisSSEC Static Source Error Correction

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SSG System Sub-groupSSGHI Surveillance Sub-Group on Harmonisation and Implementation SSGS Surveillance Sub-Group on Standards SSGT Surveillance Sub-Group on ToolsSSL Secure Socket LayerSSM Standard Schedules information Manual (CFMU)SSM System Surveillance and Maintenance SSM BD Safety & Security Management Business Division (Eurocontrol - DAS Business

Directorate)SSO STAR Support Office SSP Secondary Spare PartSSP Sole Source ProcurementSSP Source Selection Panel (MADAP) SSP System Security PolicySSPA Solid State Phased ArraySSPSG Structures for Service Provision Sub-Group (High Level Group Single European

Sky (EU)SSR Solid State RelaySSR Secondary Surveillance Radar *SSR Software Specification Review SSR Mode S * Selective Address SSRSSRBRIGH Highlight set code to target (input) SSRC Current SSR CodeSSS Source Select Switch (ODS)SSS System/Segment Specification SSSP EU Subgroup on Structures for Service Provision (see SSPSG)SST Supersonic TransportSSTS Space Surveillance and Tracking SystemS-SUP Sector Supervisor (MADAP)ST Specialist Task (EATCHIP)ST, S/T Short-TermSTA Sequence / Scheduled Time of Arrival (CFMU)STA Straight in ApproachSTAC Second Time Around ClutterSTANAG, Stanag

Standardisation Agreement (NATO)

STANINE * Standard Nine Score STANLY Statistics and AnalysisSTANS Simulation facility of a Total Air Navigation SystemSTAR Système de Traitement des Archives et Redevances (FR)STAR Second Time Around Returns (Radar)STAR Self Test and RepairSTAR Sistema Telegráfico Automático de Retransmissão (PoAF) (PT) STAR Standard (Instrument) Arrival Route *

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STAR Standard Terminal Arrival Route *STAR Surface to Air RecoverySTAR Studies, Tests and Applied Research (former STT)STARS Standard Approach ProceduresSTARS Surveillance and Tracking Attack Radar System START-OVER Process of putting in action the COLD-STANDBYSTAT StatisticsSTAT Second-Time-Around Targets *STATFOR EUROCONTROL Statistics & Forecasts ServiceSTB TF Short-Term Benefits Task ForceStBf Structured BriefingSTC Sensitivity Time Control *STC Simulation Technical CoordinatorSTC SHAPE Technical Centre (NATO, The Hague)STC Steering Committee STC Short Time ConstantSTC Supplemental Type CertificateSTCA Short-Term Conflict AlertSTCA Short-Term Conflict Alert ; a ground-based safety netSTCD Short-Term Conflict DetectionSTCW Short-Term Conflict WarningSTD Software Transfer DocumentSTD Scheduled Time of Departure (CFMU)STD Software Technical DesignerSTD StandardSTD Standard DeviationStDf Structured DebriefingSTDMA Self-organising Time Division Multiple AccessSTEP Social, Technological, Environmental and PoliticalSTF Selection Task Force STF ARTAS, STFAD

Surveillance Task Force on ARTAS Development

STFAP Surveillance Task Force on the Appraisal ProgrammeSTFDPPAS Surveillance Task Force on the Data Processing Performance Analysis StandardSTFRDE Surveillance Task Force on Radar Data ExchangeSTFRL Surveillance Task Force on Reference LevelsSTFRSS Surveillance Task Force on the Radar Surveillance StandardsSTFSDIR Surveillance Task Force on Surveillance data Distribution Infrastructure

RequirementsSTF-SDPS Surveillance Task Force on Surveillance Data Processing SystemsSTFSPAS Surveillance Task Force on the Sensor Performance Analysis StandardSTFTE Special Task Force of Training ExpertsSTFTV Surveillance Task Force on Transponder Verification

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STG Eurocontrol Standards Group . See SSGSST-ICD Short-Term Interface Control Document STIP Système Central de Traitement Initial de Plans de volSTL Software Template LibrarySTLP ATS Selection Training and Licensing PanelSTNA Service Technique de la Navigation Aérienne (FR)STOA Scientific and Technological Options AssessmentSTOL Short Take Off and LandingSTORIA Simulation Tool for Online Recording and AnalysisSTP Standardised Training PackageSTP Software Test Plan (MAS/DFS - ODS)STP Shielded Twisted Pair STPV Service du Traitement automatique des Plans de Vol (F-FPPS)STR Software Test Report (ODS) STR Service du Traitement des données Radar (F-RDPS)STRANGE Simplified Trajectory GeneratorSTRAT Strategic Planning System (CFMU)STRATPLAN CFMU Strategic Planning Meeting (CFMU)STRIDA Système de Traitement, d'Identification et de Visualisation des Données de la

Défense Aérienne (FR)STS Stand-by Telephone SystemStS Support to States (Eurocontrol)STSMOD Delay ac (input) STT Studies, Tests and Trials (now STAR)STU Selected Trajectory UpdateSTUD Innovative studies (ARDEP)SUA Special Use Airspace SUATMS Single Unified ATM SystemSUC Start-Up ControllerSUCT Surveillance analysis and Calibration Tools (ARDEP)SUD System Under DescriptionSUDP Surveillance data Processing (ARDEP)SUGST Surveillance User Group - Sensor ToolsSUMI Software Usability Measurement InventorySUP SupervisorSUP SupplementSup. Pract. Supervised Practices *SUP/ACC Supervisor Area Control CentreSUP/APP Supervisor ApproachSUP/MIL Supervisor military SUPPS Regional Supplementary Procedures (ICAO)SUPSIS Supervisor (Centre and System)SUR Surveillance * (EATMP Domain)

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SURT Screen Update Response TimeSURT Surveillance Team SurvITE Surveillance Integrated Tested for EATMSSUTP Software Unit Test PlanSV Secure VoiceSV Space Vehicle (Satellite)SVC ServiceSVC Switched Virtual Circuits * (RMCDE / SIR)SVFR Special VFR SVGA Super Video Graphics ArraySVID System V Interface DefinitionSVP SupervisorSVS Synthetic Vision SystemSVS Sprachvermittlungssystem (DE)SVVP Software Verification and Validation Plan (ODS)SW South / WestSW, s/w SoftwareSWAP Severe Weather Avoidance ProcedureSWAT Subjective Workload Assessment TechniqueSWCI Software Configuration Item (ODS) SWG Simulation Working GroupSWG SRC Workgroup for liaison with EUROCAE WGSWI Swisscontrol InterfaceSWIFT Specifications for Working positions In Future Air Traffic ControlSWIM System-Wide Information ManagementSWORD Subjective WORkload Dominance techniqueSWOT Strength, Weaknesses, Opportunities and ThreatsSWP Support Working Position (ODS)SWP Software Simulation PackageSWS Software ServiceSWU Software UnitSWY Stopway (ICAO) SXCOP Sector Exit Coordination PointSY Syrian Arab Republic (ISO Countries Codes)SYCA System CapacitySYCO System ConfigurationSYMA System ManagerSYNBA Synthetische Beanspruchungs- und Arbeitsanalyse (DE) / Synthetic Strain and

Task AnalysisSync. SynchronousSYSCIMIC System supported Civil/Military Coordination SYSCO System Supported CoordinationSYSEVAL System Evaluation

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TTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

TT Tesla / TerminalT&I Test and Integrationt.b.d. To be decided / discussedTA Task Analysis *TA Test AreaTA Traffic Advisory * (ACAS)TA Transition ActionTA Transition AltitudeTA Track AnalysisTAA Terminal Arrival AreaTAA Track Accuracy Analysis *TAAM Total Airspace and Airport Modeller (Preston Group, Victoria, Australia)TACAN UHF Tactical Air Navigatoion aidTACIS Technical Assistance to the Community of Independent States ( EC )TACOT Tactical Operational ToolTACOT TACT Automated Command ToolTACT CFMU Tactical Computer SystemTACT Tactical Flow Management Working Position TACT data Data required by or output by the CFMU TACT system.TAD Test and DevelopmentTAD Target Audience DescriptionTADIL Tactical Distribution ListTAF Terminal Area (Aerodrome) ForecastTAFEI Task Analysis For Error Identification TAFT Terminal Airspace Task Force (Eurocontrol)TAG Transitional Airport Group (APATSI)TAI International Atomic TimeTAI Tätigkeitsanalyseinventar (DE) / Job-Analysis InventoryTALK (Swedish) VCS Upgrade Programme / SystemTAM Technical Acknowledgement MessageTAMP Turkish ATC Modernisation ProjectTAOIT Tribunal Administratif de l’Organisation Internationale du TravailTAR Terminal Area (surveillance) RadarTAR Trials ATN RouterTAR Tape ArchiveTARA Terminal Area RNAV Applications Task ForceTARAD Tracking Asynchronous Radar Data TARE Telegraphic Automatic Relay EquipmentTARTAR ATS Route Structure between Armenia, Azerbaijan, Georgia, Iran, Turkey TAS Traffic Advisory Systemtas / TAS True Airspeed *

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TASC (Industry) The Analytical Science CorporationTASP Track Acquisition and Support ProtocolTATCA Terminal ATC Automation * (FAA)TATCI Tallinn ATC Improvement project (Estonia)T-ATSU Transferring ATS Unit * (ICAO)Tau Range / Range rate (TCAS) TB TellbackTBA To Be AdvisedTBA Tellback AreaTBC To Be CompletedTBD To Be Determined or To Be DefinedTBD To Be DefinedTBN To Be NotifiedTBS Telephone Back-up System (VCS)TBS-GA Tätigkeitsbewertungssystem – Geistige Arbeit (DE) / Job-Assessment System –

Mental WorkTC Transit Corridor TC Tactical ControllerTC Transition ConceptTC Tactical Controller TC Typical Changes *TC/OC Technical Control and Operational ControlTCA Terminal Conflict Alert *TCA Traffic Count Area (CFMU)TCA Track Continuity AreaTCA Track-to-chain AssociationTCAA Transatlantic Common Aviation AreaTC-APD Tactical Controller Activity Predictor DisplayTCAS Traffic Alert and Collision Avoidance System *TCB Training Co-ordination Board (Eurocontrol, IANS)TCC Traffic Control Centre TCC Thrust Control ComputerTCDP Technical Control Data ProcessorTCG Training Consultation Group / Groupe consultatif sur la formationT-Channel Time Division Multiple-Access Channel *TCL Terminal ControlTCO The Swedish Confederation of Professional EmployeesTCOP Transfer Coordination PointTCP Transmission Control ProtocolTCP / IP Transmission Control Protocol / Internet Protocol TCP/IP Transmission Control Protocol/Internetwork ProtocolTCPU Touch Panel Central Processing Unit (ACS)TCS Test Case Specification

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TCT Technical Control TerminalTCWP Threshold Crossing Way-point *TDA Track Detection Analysis *TDA Track Detection AnalysisTDB Track Data Block TDCE Telephone Distribution and Control EquipmentTDCP Test Display and Control PanelTDD Time Division DuplexTDF Total Delayed Flights TDF Training and Development FacilityTDH Training Development and Harmonisation (IANS)TDH Unit Training and Harmonisation UnitTDM Total Delay in Minutes TDM Time Division Multiplexing *TDMA Time Division Multiple Access *TDOP Time Dilution Of Precision *TDR Track Drop Rate *TDR Traffic Data Record TDR Target Data Receiver TDS Test and Development SectorTDS Test and Development SystemTDS Tactical Data SystemTDS Test Design SpecificationTDSP Training Documentations and Special Projects TDWR Terminal Doppler Weather Radars TDZ Touchdown ZoneTEAM SIMUL Team SimulationTEC Technical ATM Systems and Logistics SupportTEC Total Electron Content *TEC, TECH Technical TEL TelephoneTELIA (Swedish) Telecommunications ProviderTEMP Test and Evaluation Master PlanTEN Trans-European Network TEN(-T) Trans European Network (-Transport) (European Commission funding)TEN-Telecom Trans-European Telecommunications NetworkTEPS Trajectory Editor and Problem SolverTERPS Terminal Instrument ProceduresTERPS Standard for Terminal Instrument procedures (US)TES Trials End System projectTETRA Trans-European Trunk RadioTETRAPOL Trans-European Trunk RadioTF Task Force or Touch Field (VCS)

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TF Track to a Fix (ARINC 424 Path Terminator)TFA Test Flight Analysis TFACS Task Force on Assessment Centre StandardsTF-CCC Task Force Common Core Content (EATCHIP).TFD Thin Film DiodeTFDATS Delegation of ATS Task Force (ANT)TFIS Traffic Flow Investigation SystemTFM Traffic Flow ManagementTFR Tactical Flight Record (CFMU)TFT Thin Film TransistorTFTR Terrain Following Training RouteTFTS Terrestrial Flight Telephone SystemTF-TTM TF on Technology Based Training Tools and MethodsTFV Traffic Volume (CFMU) TG Task GroupTGDLP Trials Ground Data Link ProcessorTGF Traffic Growth Factor (CFMU)TGL Temporary Guidance Leaflet (JAA)TGV Train à Grande Vitesse (FR) / High Speed TrainTH-CSF Thomson CSFTHD Total Harmonic DistortionTI Technologie de l’Information (FR) / Information TechnologyTIA Traffic Information AreaTIC Time In ChangeTIC Transition Input ClassTICTAC Time Constrained Trajectory Computation Trajectory predictorTID Touch Input Device TIDE Tactical and IFPS Development EnvironmentTIDmn Track Initiation Delay MeanTIDsd Track Initiation Delay Standard DeviationTIM Transfer Initiation MessageTIM TimeTIMERS Traffic Intelligence for the Management of Efficient Runway SchedulingTIP Touch Input and Display PanelTIS Traffic Information Service *TIS-B Traffic Information Service - BroadcastTIZ Traffic Information ZoneTKX Crosstell TrackerTL Transition Line (Level)TL Traverse Level TLA Title Line AreaTLAT Technical Link Assessment TeamTLPD Traffic Load Prediction Device

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TLPV Tratamiento Local de Planes de Vuelo (ES)TLS Target Level of Safety *TLS Tactical Load SmootherTLV Type Length ValueTLX Task Load Index (NAA)TM Technical Project ManagerTMA Terminal Movement AreaTMA Terminal Control AreaTMA Terminal Manoeuvring AreaTMA-TC TMA Tactical ControllerTMC Terminal Control CentreTMC Technical Monitoring and Control TMCS Technical Monitoring and Control System (RMCDE / MADAP)TMCU Tower Main CWP UnitTMRR Temporary Minimum Disk RouteTMS TeleManagement SystemTMS Tools Manager ServerTMS Traffic Management SystemTMSSG Top Management Structure Sub-GroupTMU Traffic Management Unit (FAA) *TN Track Number TN Trajectory Negociation *TN True NegativeTN Tunisia (ISO Countries Codes)TNAV Time Navigation *TNO A stereovision test (trade name)TO Technical OrderTO/L Take Off/LandingTOA Terms of AgreementTOAST Team Oriented ATC Simulator Training *TOAST Technical, Operational and System Tests TOC Transfer Of ControlTOC Technical Operators CentreTOC Top Of Climb TOD Top Of DescentTODA Take Off Distance Available (ICAO)TOEFL Test Of English as a Foreign LanguageTOI Temporary Operating InstructionTOIT/TF Task Force on the Treatment of Internal TaxTOPL Take Off Performance LimitsTOR (Swedish) Briefing System (MET, Flight Plans)TOR Terms Of ReferenceTORA Take Off Run Available

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TORCH Technical, Economical and Operational Assessment of an ATM Concept Achievable from the Year 2005

TOS Traffic Orientation Scheme * (CFMU) / Schéma d’orientation du trafic (FR)TOSCA Testing Operational Scenarios for Concepts in ATMTOT Time Over Target TOWP Take Off WaypointTP Trajectory Prediction * ; Transport Protocol TP True PositiveTP Turning PointTP-4 Transport Protocol, class 4 TPAS Trajectory Predictor based Aircraft SimulatorTPD Transition Programme Description (EATMS)TPDR Transponder *TPDU Transport Protocol Data Unit (RMCDE)TPG The Preston GroupTPIAS Transition Plan for Implementation of Airspace StrategyTPINS Transition Plan For The Implementation Of The Navigation StrategyTPL Task Priority List TPL Transport Layer *TPS Test Procedure SpecificationTPS A mono-radar track formatTPT Touchdown PointTQM Total Quality ManagementTR Test ReportTR Trouble ReportTR Track ReconstructionTRA Track Resolution AnalysisTRA Temporary Reserved Airspace/AreaTRA Required Time for ArrivalTRA Traffic (type)TRACER Technique for the Retrospective Analysis of Cognitive Errors in ATMTRACON Terminal Radar Approach Control (US) TRAFCA Traitement Automatique des Fonctions de la Circulation Aérienne (FR) (Algeria)TRAINDEV2 Integrated Eurocontrol Training Design Tool *TRAMON Traffic MonitoringTRANSCOM French public telecommunication networkTRAP Technical Review and Audit Plan (ODS)TRB Tracker BallTRB Transportation Research Board (4-States)TRD Transit Routing Domain *TREE Transit Radiation effects on Electronic EquipmentTREN Transport and Energy (General Directorate EU)TRF Total Regulated Flights

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TRG Technical Review GroupTRG Training *TRK Track *TRL Transition LevelTRM Team Resource Management *TRMTFII Team Resource Management Task Force IITROL Tapeless, Rotorless On LineTRP Thrust Rating PanelTRR Test Readiness Review (MAS - ODS)TRSB Time Reference Scanning BeamTRUST Terminal Routes Using Speed-Control Techniques (MITRE, CAASD)TRY/PFL Try Input of Planned Flight Level TS Track Server (MADAP)TS Trajectory SystemTS Transport Service User *TS Test Specification (ODS)TS Technical SupplementTS Technical SpecificationTSA Temporary Segregated Area *TSAP Transport Service Access Point *TSCU Tower Support CWP UnitTSD Time Sequence Diagram *TSD Traffic Situation Display (FREER) TSDD Test Synthetic Dynamic DisplayTSDF Time Slot Duty FactorTSDG Technical and System Development GroupTSE Total System Error *TSEA Track Systematic Error AnalysisTSG Training Sub-GroupTSGE Tri-Service Group on Communications and Electronics (NATO)TSIKADA Russian four-satellite civil navigation system.TSIKADAM Russian six-satellite military navigation system.Tsimul Team SimulationTSO Technical Service/Standard OrderTSO Time Sharing Option TSP HRS Training Sub-Programme (EATMP)TSr Track Swap RateTSR Terminal Surveillance RadarTSRV Transport System Research VehicleTSS Target Software Server TSS Traffic Sub-SystemTST TestTST Trajectory Support Tool

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TSU Technical Support Unit TTA Track Time-based AnalysisTTA Tactical Training AreaTTC Telemetry and Telecommand CentreTTF Total FlightsTTL Time To LiveTTL Transistor-Transistor LogicTTL Transistor-Transistor LogicTTP TCAS II Transition ProgramTTR Target Tracking RadarTTS Trails Transport Service (ATN)TTY Teletype Telex MachineTU Turkey (ISO Country Code) TU Temps UniverselTUC Temps Universel Coordonné (FR) / Universal Coordinated Time (heure ZOULOU)TUM Time Update MessageTut TutoringTV TelevisionTVE Total Vertical ErrorTv-Tc Transversal acceleration - Typical changesTWDL Two-Way DataLinkTWG Training Working Group TWI Terminal Weather InformationTWIP Terminal Weather Information for Pilots *TWN Tactical Weather NetworkTWP Technical Work Programme in the Air Navigation Field (ICAO) *TWR Tower Control Unit (Aerodrome Control Tower) TWS Technical Watch Supervisor TWS Track While ScanTWS Terminal Weather Service (ICAO)TWT Travelling Wave TubeTX Transmitter StationTx Next waypoint ETATX / RX Transmitter / Receiver (Radar head)Txt Text *TXWY Taxy WayTYPE Aircraft Type

UUU/L Upper / Lower - Upper LinkU/S UnserviceableUA Ukraine (ISO Countries Codes)

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UTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

UAC Upper Area Control (Centre) * ; Centre de contrôle de l’espace supérieur (FR)UACC Upper Airspace Control Centre UAP User Application Profile * (RMCDE)UAR Upper Air RouteUAS Upper AirspaceUAT Universal Access TransceiverUAV Unmanned Aerial VehicleUBL Unspecified Bit RateUCDU Universal Control and Display UnitUDA Upper Advisory (Service) AreaUDF Ultra High Frequency Direction Finding StationUDRE User Differential Range ErrorUEATMS Uniform European Air Traffic Management SystemUEO Union de l’Europe Occidentale / Western European Union (=WEU)UERE User Equivalent Range ErrorUFF Ultimate Fallback FacilityUFN Until Further NoticeUFO Unidentified Flying ObjectUFR Upper Flight RegionUHF Ultra High Frequency *UI User InterfaceUIC Unit Identity CodeUIC Upper Information Centre UIECS Union of International and European Civil ServantsUIMS User Interface Management SystemUIR Upper Flight Information Region / Région supérieure d’information de vol (FR)UIT Union Internationale des Télécommunications (FR)UIVE User Ionospheric Vertical RangeUK United KingdomUKAATS UK Advanced ATSUKD Upgrade ZKSD and coupling with DERD-X (DE)UKNATS United Kingdom National Air Traffic ServicesUkraviatsia Ukrainian State Aviation AdministrationUkSATSE Ukrainian State Air Traffic Services Enterprise UKW Ultrakurzwelle (DE) / Ultra-Short Wave / Onde ultra-courte (FR)UL Upper Link (ATS route indication) or Uplink *ULM Ultra Léger Motorisé (FR)UM Uniform MotionUMA Unmanned AircraftUML Unified Modelling LanguageUMTS Universal Mobile Telephone ServiceUNHCR United Nations High Commissioner for RefugeesUNIN Unsual / Emergency Situations

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UTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

UNINC Unusual Incidents *UNIX Uniplexed Information and Computing ServiceUNL UnlimitedUPD Update Plan DivergenceUPP Upper airspaceUPS Un-interruptable Power SupplyUPSEL Update SelectionUPU Union Postale Universelle (FR) / Universal Postal UnionURA User Range Accuracy *URANIA Upgrading Athens Terminal Area and Interfacing to the PALLAS ACC systemURD User Requirements Document URE User Range Error *URET User Request Evaluation Tool (MITRE Conflict Detection product)URG Urgency (ICAO)URP User Requirements PhaseURTF User Requirements Task Force US/USA United States of AmericaUSAF US Air ForceUSAL User Access LevelUSAREUR US Army (Representative) in EuropeUSART Universal Synchronous / Asynchronous Receiver/TransmitterUSCG United States Coast GuardUSD US DollarUSEF Union Syndicale Eurocontrol France (FR)USFSPEI Union Syndicale Fédérale du Service Public Européen et International USG US GovernmentUSNO US Naval ObservatoryUSOAP Universal Safety Oversight Audit Programme (ICAO)USSPE Union Syndicale – Service public européen / European Public Service Union

(=EPSU)UT Universal Time UTA Upper (Traffic) Control AreaUTA Upper Transition AreaUTC Universal Time Co-ordinates * (CFMU) / Temps Universel Co-ordonné (FR)

(=TUC)UTP Unshielded Twisted Pair UUP Updated (Airspace) Use Plan *UVA Utility Value Analysis

VV VoltVV&V Validation & VerificationV/M Volts-per-meter

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VTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

V/STOL Vertical or Short Take-Off and LandingVA Heading to an Altitude (ARINC 424 Path Terminator)VAA Value Added Applications (MADAP)VAC Alternate Current VoltageVAFOR Very Advanced Flight Data Processing System Operational RequirementVAFORIT VAFOR Implementation VAN Value Added NetworkVAP Volumetric Airspace PenetrationVAP Visual Aids Panel VAPS Virtual Applications Programming SoftwareVAQ VHF Avionics QualificationVAR VCS, Ancillaries and Remote control systemVAS Vienna ATCC Data Processing SystemVAS Vortex Advisory SystemVASI Visual Approach Slope IndicatorVAT Value Added Tax VAW Vertical Assistance Window (ODID)VBR Variable Bit RateVBX Visual Basic ExtensionsVC Virtual Circuit *VC Virtual ClassroomVCCS Voice Communication and Control SystemVCI Voice Change Instruction, a message of the ACM serviceVCO Voltage Controlled Oscillator *VCR Visual Control RoomVCRI Verification Cross Reference Index (ODS)VCS Voice Communication SystemVCS Voice Communications System VCSS Voice Communications Switching SystemVCSTF, VCS-TF

Voice Communications System Specification Task Force

VD Heading to a DME Distance (ARINC 424 Path Terminator)VD Vertical DispersalVDC Direct Current VoltageVDD Version Description DocumentVDE Verband Deutscher Elektrotechniker (DE)VDEV Vertical Deviation *VDF Very high frequency Direction Finding stationVDF VHF Direction FinderVDL VHF Digital/Data Link * / Liaison de données VHF (FR)VDL/4 VHF Data Link Mode 4VDOP Vertical Dilution Of Precision *VDR VHF Digital/Data Radio

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VDR Validation Data RepositoryVDU Visual Display UnitVDU Video (Visual) Display (Distribution) UnitVDX VideotextVE Validation EnvironmentVeFC Vertical Motion Fast ClimbVeFD Vertical Motion Fast DescendVEL Velocity LeaderVENSIM Ventana SimulatorVer VerticalVESDA Very Early Smoke Detection Apparatus (Fire alarm system)VET Visualisateur Electronique de Texte (FR)VEX Vertical Expansion (of 8.33 kHz deploymentàVF Voice FrequencyVFOP Visual Flight Rules Operations Panel VFR Visual Flight Rules *VG Validity Generalisation * VGA Video Graphics ArrayVGS VHF Datalink Ground StationsVHF Very High Frequency * / Très hautes fréquences (FR)VHF R/T Very High Frequency Radio/TelephonyVHFAMS Very High Frequency Aeronautical Mobile Services *VHF-OTF VHF Operations Task ForceVHZ Vereinigte Hauptzentrale (DE)VI Heading to Intercept (ARINC 424 Path Terminator)VICTOR Visualización Integrada de Control de Torre (ES) / ATC Integrated display for

TWRVID Visual Image DisplayVid VideoVIP Very Important PersonVis Visual aids *Vis VisitVL Very Low ATC Complexity VLAN Virtual Local Area NetworkVLBI Very Long Baseline InterferometryVLCT Very Large Capacity TransportVLF Very Low Frequency *VLSI Very Large Scale Integration *VLUT Video Look-Up TableVM Heading to a Manual Termination (ARINC 424 Path Terminator)VMC Visual Meteorological Conditions *VMMS VHF Multi-frequency Management UnitVN Valid Negatives

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VNAV Vertical Navigation *VNSE Vertical Navigation System Performance VOB Versioned Object BaseVOI Volume of Operational InterestVoL Value of LifeVOL VolumeVOLMET Meteorological Information for Aircraft in FlightVOLMET Routine Weather Reports Broadcast on VHFVOR VHF Omni-directional Radio Range * (Beacon) VOR/DME, VOR-DME

VHF Omni-directional Ranging / Distance Measurement Equipment

VORTAC, VOR-TACAN, VOR/TAC

Combined VOR and TACAN *

VOT VHF Omnidirectional Range Test *VP Valid Positives VP Vertical Profile *VPAE Vertical Profile Angle Error *VPD Vertical Polar DiagramVPDG Validation Plan Drafting GroupVPIP Vertical Intercept Point *VPN Virtual Private NetworkVR Heading to a VOR Radial (ARINC 424 Path Terminator)VRRS Voice Recording and Display System VRS Voice Response SystemVS Vocational StabilisationVSAT Very Small Aperture satellite TerminalVSCS Voice Switching and Control SystemVSD Vision and Strategy Document (EATMS)VSIG Vertical Separation Implementation GroupVsl Visual AidsVSM Vertical Separation Minimum VSP Variable System ParameterVSSG Vertical Separation Sub-Group VSWR Voltage Standing Wave RatioVTN Voice Telecommunications NetworkVTOL Vertical Take-Off and LandingVTS Vessel Traffic ServicesVTT Vertical Threshold TestVVD Vertical View DisplayVWF Video For WindowsVx Version x

W

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WTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

W Wattw Wake Vortex categoryWAA Wide Area Augmentation *WAAS Wide Area Augmentation System * (US) WAC World Aeronautical Chart *WACS Wireless Airport Communications SystemsWAD Wide Area DifferentialWAD-GNSS Wide Area Differential GNSS *WADGPS Wide Area Differential GPS *WAFC World Area Forecast Centre *WAFS World Area Forecast System *WAGE Wide Area GPS Enhancement program *WAN Wide Area Network *WARC World Administrative Radio Communication Conference WARC-MOB World Administrative Radio Communication Conference - Mobile Communication.WBS Work Breakdown Structure *WC Working CellWC Waypoint CaptureWCG Washington Consultant GroupWCL Weather ChannelWDW Window *WEA Whole ECAC AreaWEF With Effect FromWEU Western European Union (military matters) / Union de l’Europe Occidentale

(=UEO)WG Working Group WGCS-84 World Geodetic System/Standard (1984)WGPDS Word and Graphics Process Documentation SystemWGR Working Group on Route ChargesWGRSG Sub-Group of the Charges Working GroupWGS World Geodetic System * / Système géodésique mondial (FR)WGS World Geodetic Survey *WGS-72 World Geodetic System/Standard (1972)WGS-84 World Geodetic System 84, which is the ICAO recommended parameterisation of

an ellipsoid earth modelWHORU WHO aRe yoU WIAS Wetterdaten und Informations-Anzeigesystem (DFS) (DE)WIE With Immediate EffectWILCO Will Comply WIMP Windows, Icons, Mouse and Pointers (ODS)WIPO World Intellectual Property OrganisationWIRS Wide Area Reference StationsWKSP Transmission Centres Workshop ; Data Transmission Workshop / Atelier des

centres émetteurs de données (FR)

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WTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

WKSP Transmission Centres WorkshopWLA WorkLoad AssessmentWM Working Memory *WMB Window Management ButtonWMO World Meteorological OrganisationWOC Wing Operations CentreWOD Word Of the Day WORM Write Once, Read ManyWP Way-Point *WP Work Package * WP Work ProgrammeWP Working PaperWP Working PositionWPD Work Programme DocumentWPL Work Package Leaders (EATCHIP)WPM Words Per Minute WPn First waypoint in the next sectorWPP Working Position ProcessorWPs Working PositionsWPx Next waypoint on the flight planWRC World Radio-communications Conferences *WS Work StationWS Watch SupervisorWSC West Sector Co-ordinator WTC Wake Turbulence CategoryWWW World Wide Web (INTERNET)WX WeatherWXMS Weather Mapping SystemWYSIWYG What You See Is What You Get

XX.25 Packet Switched Data Network *X25 Standard protocol in telecommunications XAP Crossing Alternate Proposal MessageXASM Cancel Assume XASP Extended AIRCOM Service ProcessorXBRIGHT Cancel highlighting XCM Crossing Request Cancelation Message (OLDI)XCONF Delete CONFlict XCOORD Cancel Co-ordination XCOP Exit Co-ordination PointXCOR Cancel Correlation XECM Cancel Executive Controller Message

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XTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

XEU European Currency Unit (ECU)XEXPLT Cancel ExtrapolationXFDM Cancel FDMXFL Exit Flight Level * (from a sector or volume of airspace)XFRQ Cancel Frequency messageXGEO Cancel GEOXHOLD Cancel HoldXIFL Cancel Intermediate Flight LevelXIN Military Crossing Intention Notifi-cation MessageXIN Crossing intentions XLS Excel ProgrammeXMET Cancel METARXML Extensible markup LanguageXMT Excluding (Message)XNSSR Exit NSSRXOFF/PDR Cancel Off Predetermined RouteXPLN Cancel PlanXPNDR Transponder *XPT Exit Point of a sector (ODID) XQDM Cancel QDMXRA Crossing Request Answer (SEROS / MADAP)XRQ Airspace Crossing Request Message (Airspace Crossing Dialogue)XSFL Cancel Supplementary Flight LevelXSSR Exit SSRXSSRBRIGH Cancel SSR highlightXSTAT Cancel StatisticsXTDCP Cancel Test Display Control PanelXTEDD Cancel Test Electronic Data DisplayXTK Cross Track Distance *XTRK Cancel TrackXTRK Cross Track Error *XTT Across Track Tolerance

YY2K Year 2000 bugYU The Federal Republic of Yugoslavia (ISO Countries Codes)

ZZDB Zentrale Datenbank (DE)ZKSD Zentraler Kontrollstreifendruck (DE) / Central Flight Plan Data Processing & Strip

Printing SystemZOC Zone of ConvergenceZOE Zone d’Echange

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ZTip: to find a specific term, use the Acrobat search : click on the binocular icon in the window bar menu

ZSA Zergo Security ArchitectureZVE Zentrale Überwachung (DE)ZVF Zero Velocity Filter

∆∆(delta) Symbol for difference/increment

Εε (epsilon) Symbol for azimuth increment

ΘΘ (Theta *) Symbol for azimuth

Λλ (lambda) Symbol for wavelength

Μµ (mu) Symbol for micro (10-6)

Ππ (pi) Symbol for pi (approx. 3.14159)

ΣΣ (Sigma) Symbol for sumσ (small sigma)

Symbol for Standard Deviation

Ττ (Tau) Symbol for time

ΩΩ (Omega) Symbol for Omni directional.

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