Davis

For further information, please contact: W.R. Davis Engineering Limited., 1260 Old Innes Road, Ottawa, ON, Canada K1B 3V3Tel: (613) 748-5500 Fax: (613) 748-3972

E-mail: marketing@wrdavis.com Website: www.wrdavis.com© 2009 W.R. Davis Engineering Limited W.R. Davis Engineering Limited

We are pleased to announce the U. S.Army Air Worthiness Release (AWR) ofthe Boeing-Davis-Honeywell InfraredSuppressor (IRS) for the Boeing CH-47Fhelicopter. The AWR clears the IRS toenter into operation on the F variant – asignificant milestone in a developmentand qualification program which began inthe spring of 2007. The AWR for the Dvariant is expected to be granted in thesummer of 2009.

Davis, Boeing, and Honeywell formed ateaming arrangement in 2005 to jointlydevelop an holistic IR suppressionsolution for the Chinook helicopter. In thisrelationship, Davis took responsibility forthe engine exhaust IRS (the “B-kit”),Honeywell assessed engine performanceimpacts, and Boeing lead the platformintegration (including the design of thebackup structure “A-kit”) and addressedall secondary sources of IR signature.The U. S. Army is the lead customer andhas taken responsibility for performing thequalification of the device.

The qualification program has beenconducted over the last 18 months andhas resulted in the accumulation of over150 flight hours to date. The programaddressed system robustness, aircraftperformance effects, and measured theIR signature with both IR cameras andcaptive seekers.

In addition, the added support structure inthe aft section of the helicopter wasanalysed and tested to improve fatiguelife both with and without the suppressorinstalled.

Background

Qualification Program

International Users

Production

The CH-47 is in operation with severalarmed forces around the world, includingthe U.K., Holland, Canada, Australia,Spain, Japan, Italy, Korea, Singapore,and Greece. The grant of the AWR clearsthe way for these forces to acquire thetechnology. Boeing Integrated DefenceSystems (IDS) will act as the LeadSystems Integrator (LSI) for the sale ofthe CH-47 IRS to the internationalcommunity. Davis will subcontract toBoeing.

In January 2009, Davis celebrated thedelivery of the 50 IRS shipset for theCH-47. We have presently achieved afabrication rate of five shipsets (ten IRSunits) per month, with the capability toramp that rate up to eight shipsets permonth within our current facility. This willallow us to fill international user ordersw i t h n o r m a l l e a d t i m e s w h i l esimultaneously meeting U. S. Armyproduction commitments.

th

DavisApril 2009, Issue 14

CH-47 IR SUPPRESSIONFOCUS

Davis has continued to focus on thedevelopment and fabrication ofaircraft IR suppression technology.With the successful execution of theCH-47 IRS program for the U. S. Armywe have proved that we have theexpertise, technology, quality, andproduction scale to meet therequirements of one of the mostdemanding armed services in theworld.

We continue to invest in research anddevelopment, design solutions to newplatforms, and streamline for ourfabrication processes. We haverecently been contracted to developIR suppressors for the AW129 andBeechcraft King Air 350 aircraft, andhave started an internally fundeddevelopment on the C-130 and C-27J.

Specialization in the field has uniquelypositioned us to provide rapiddevelopment and fabrication of IRsuppressors wi th the qual i tydemanded by the aerospace industry.

CH-47 Boeing-Davis-Honeywell Suppressor

Davis

In July 2006 Davis completed the FAA

certification of an IR suppressor for the

CASA CN-235 aircraft. The CN-235 IRS

utilizes the proven Centre Body Tailpipe

(CBT) concept which provides effective

IR signature reduction for all view angles

around the aircraft. The device fits

discretely within the existing engine

cowling, and causes minimal aircraft

performance effects, including low drag

and engine power penalty.

The following polar plot illustrates the

measured mid wave IR signature of both

the baseline and suppressed CN-235 for

a series of azimuth angles around the

aircraft.

CN-235 Centre Body Tailpipe IRS(engine cowling removed)

CASA CN-235 TRANSPORT

Continued on Page 2

Contrast Radiant Intensity (3-5um)

30

60

90

120

150

180

210

240

270

300

33030

60

90

120

150

180

210

240

270

300

330

Stock Tailpipe

Davis CBT

Davis has been awarded a six yearcontract by Agusta Westland (AW) inCascina Costa, Italy, for the developmentand fabrication of an IR suppressor for theA129 helicopter with the LHTEC T800engine.

AGUSTA WESTLANDA129 HELICOPTER

Agusta Westland A129 Attack Helicopter

AW is under contract with the TurkishSSM to deliver the A129 attack helicopterto the Turkish Land Forces (TLF) underthe T129ATAK program.

By the application of proven IRsuppression technology, we have beenable to commit to the delivery of aproduction representative flight prototypein 9 months from contract award.

The organization of the program is amodel of how to develop a robust, wellintegrated, high performance IRsuppressor: Davis customizes the enginee x h a u s t I R S , w h i c h w e h a v econtinuously improved over the past tenyears, AW ensures seamless integrationwith the airframe, and LHTEC providesthe engine test bed.

W.R. Davis Engineering LimitedW.R. Davis Engineering Limited 2 3

Davis

�

�

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Mike Kelly joined Davis as Director ofU.S. Sales - Aerospace in January of2006. Before joining Davis, Mike hada long and successful career in theaircraft gas turbine industry withHoneywell andAllied Signal.

In April 2007 Davis completed thedelivery of three AS332 IRS shipsetsto Heli-One for integration on theSwedish Air Force Super Pumahelicopters.

In December 2008 we completed thedelivery of 16 Bell 412 IRS shipsetsto PresidentialAirways.

�

�

�

Three shipsets of the Mi-17 IRsuppressor were delivered inJanuary 2009.

In February 2009 an order from USHelicopter for 11 IRS shipsets of theUH-1H was completed. As part ofthe order, the UH-1 IRS design wasu p d a t e d t o i m p r o v emanufacturability.

We have delivered three of fiveprototype exhaust systems for thenew Korean Utility Helicopter beingbuilt by KAI.

Davis UH-1H Centre Body Tailpipe (CBT)

The CH-47 IRS (and all other aircraft IRS)fabrication is being performed at our60,000 square foot manufacturing facilityin Ottawa, Canada. Personnel andcertifications include:

over 70 metal technicians

fully qualified welding staff

Inconel and stainless steel weldingtoASME Section 9

Aluminum welding to ASME section9 and CWB 47.2

MIL Standard 2219 for Titaniumwelding

Mild steel welding to CWB 47.1 W59Division 3.

Our quality assurance process is certifiedto AS9100B and is regularly audited byma jo r de fence and aerospacecontractors.

�

�

�

�

�

�

Davis CH-47 IRSS Production Facility

CH-47 IR SUPPRESSION(continued from Page 1)

We are pleased to announce thebeginning of a new four year programwith Queen's University to performresearch in to the aero thermalperformance of aircraft engine exhaustIR suppressor technology. The programis funded by Davis and the CanadianNational Science and EngineeringResearch Council (NSERC) andcontinues the close working relationshipbetween Queen's and Davis.

The research will be headed by Dr.Michael Birk, Head of the MechanicalEngineering Department at Queen's andwill support five Master and PhDstudents.

Davis has initiated an internally fundedprogram to develop and field an IRsuppressor for the C-130 and C-27Jaircraft.

We have formed a teaming arrangementwith Standard Aero, a leading overhaul,maintenance, and engine performanceoptimization company with expertise onthe T56 andAE2100 engines.

The C-130/C-27J IR suppressor utilizes acooled S-bend nozzle to reduce thetemperature of the exhaust gas whilediverting the exhaust jet away from thewing. The exhaust then flows into a filmcooled tailpipe which together with thenozzle obstructs the view into the gast u r b i n e e n g i n e m a c h i n e r y. A naerodynamic cowling covers the hotsections of the exhaust system while alsominimizing drag. The entire IRS system

We have been awarded a contract by amajor U. S. defence integrator for thedevelopment and fabrication of an IRsuppressor for the Beechcraft King Air350 aircraft. The King Air 350 is a twinPT6A-60A engine turboprop aircraftwhich is often used for mannedsurveillance activities in war zones andvolatile regions.

The program involves the followingactivities typical of an IRS retrofit: aircraftsurvey for IRS integration and baseline IRsignature measurement, IRS design,analysis of engine bay flows and externalflows around the aircraft, assessment ofengine power penalty and drag, engine

BEECHCRAFT KING AIR 350

Beechcraft King Air 350

is light weight and designed to ensure am in ima l impac t on a l l eng inemaintenance.

We are on schedule to prove deviceperformance via engine test in the fall

test, f l ight prototype fabrication,qualification (in this case FAA STC); IRSequipped IR signature measurement, andproduction.

The plan is to deliver four IRS shipsetsunder the current order, starting in theSpring of 2010.

C-130J / C-27J IRSS Concept

of 2009, and then enter into detaileddesign and qualification. The DavisC-130/C-27J IRS provides significantweight savings and IR signaturereduction over existing devices installedon the C-130.

W.R. Davis Engineering LimitedW.R. Davis Engineering Limited 2 3

Davis

�

�

�

Mike Kelly joined Davis as Director ofU.S. Sales - Aerospace in January of2006. Before joining Davis, Mike hada long and successful career in theaircraft gas turbine industry withHoneywell andAllied Signal.

In April 2007 Davis completed thedelivery of three AS332 IRS shipsetsto Heli-One for integration on theSwedish Air Force Super Pumahelicopters.

In December 2008 we completed thedelivery of 16 Bell 412 IRS shipsetsto PresidentialAirways.

�

�

�

Three shipsets of the Mi-17 IRsuppressor were delivered inJanuary 2009.

In February 2009 an order from USHelicopter for 11 IRS shipsets of theUH-1H was completed. As part ofthe order, the UH-1 IRS design wasu p d a t e d t o i m p r o v emanufacturability.

We have delivered three of fiveprototype exhaust systems for thenew Korean Utility Helicopter beingbuilt by KAI.

Davis UH-1H Centre Body Tailpipe (CBT)

The CH-47 IRS (and all other aircraft IRS)fabrication is being performed at our60,000 square foot manufacturing facilityin Ottawa, Canada. Personnel andcertifications include:

over 70 metal technicians

fully qualified welding staff

Inconel and stainless steel weldingtoASME Section 9

Aluminum welding to ASME section9 and CWB 47.2

MIL Standard 2219 for Titaniumwelding

Mild steel welding to CWB 47.1 W59Division 3.

Our quality assurance process is certifiedto AS9100B and is regularly audited byma jo r de fence and aerospacecontractors.

�

�

�

�

�

�

Davis CH-47 IRSS Production Facility

CH-47 IR SUPPRESSION(continued from Page 1)

We are pleased to announce thebeginning of a new four year programwith Queen's University to performresearch in to the aero thermalperformance of aircraft engine exhaustIR suppressor technology. The programis funded by Davis and the CanadianNational Science and EngineeringResearch Council (NSERC) andcontinues the close working relationshipbetween Queen's and Davis.

The research will be headed by Dr.Michael Birk, Head of the MechanicalEngineering Department at Queen's andwill support five Master and PhDstudents.

Davis has initiated an internally fundedprogram to develop and field an IRsuppressor for the C-130 and C-27Jaircraft.

We have formed a teaming arrangementwith Standard Aero, a leading overhaul,maintenance, and engine performanceoptimization company with expertise onthe T56 andAE2100 engines.

The C-130/C-27J IR suppressor utilizes acooled S-bend nozzle to reduce thetemperature of the exhaust gas whilediverting the exhaust jet away from thewing. The exhaust then flows into a filmcooled tailpipe which together with thenozzle obstructs the view into the gast u r b i n e e n g i n e m a c h i n e r y. A naerodynamic cowling covers the hotsections of the exhaust system while alsominimizing drag. The entire IRS system

We have been awarded a contract by amajor U. S. defence integrator for thedevelopment and fabrication of an IRsuppressor for the Beechcraft King Air350 aircraft. The King Air 350 is a twinPT6A-60A engine turboprop aircraftwhich is often used for mannedsurveillance activities in war zones andvolatile regions.

The program involves the followingactivities typical of an IRS retrofit: aircraftsurvey for IRS integration and baseline IRsignature measurement, IRS design,analysis of engine bay flows and externalflows around the aircraft, assessment ofengine power penalty and drag, engine

BEECHCRAFT KING AIR 350

Beechcraft King Air 350

is light weight and designed to ensure am in ima l impac t on a l l eng inemaintenance.

We are on schedule to prove deviceperformance via engine test in the fall

test, f l ight prototype fabrication,qualification (in this case FAA STC); IRSequipped IR signature measurement, andproduction.

The plan is to deliver four IRS shipsetsunder the current order, starting in theSpring of 2010.

C-130J / C-27J IRSS Concept

of 2009, and then enter into detaileddesign and qualification. The DavisC-130/C-27J IRS provides significantweight savings and IR signaturereduction over existing devices installedon the C-130.

Davis

For further information, please contact: W.R. Davis Engineering Limited., 1260 Old Innes Road, Ottawa, ON, Canada K1B 3V3Tel: (613) 748-5500 Fax: (613) 748-3972

E-mail: marketing@wrdavis.com Website: www.wrdavis.com© 2009 W.R. Davis Engineering Limited W.R. Davis Engineering Limited

We are pleased to announce the U. S.Army Air Worthiness Release (AWR) ofthe Boeing-Davis-Honeywell InfraredSuppressor (IRS) for the Boeing CH-47Fhelicopter. The AWR clears the IRS toenter into operation on the F variant – asignificant milestone in a developmentand qualification program which began inthe spring of 2007. The AWR for the Dvariant is expected to be granted in thesummer of 2009.

Davis, Boeing, and Honeywell formed ateaming arrangement in 2005 to jointlydevelop an holistic IR suppressionsolution for the Chinook helicopter. In thisrelationship, Davis took responsibility forthe engine exhaust IRS (the “B-kit”),Honeywell assessed engine performanceimpacts, and Boeing lead the platformintegration (including the design of thebackup structure “A-kit”) and addressedall secondary sources of IR signature.The U. S. Army is the lead customer andhas taken responsibility for performing thequalification of the device.

The qualification program has beenconducted over the last 18 months andhas resulted in the accumulation of over150 flight hours to date. The programaddressed system robustness, aircraftperformance effects, and measured theIR signature with both IR cameras andcaptive seekers.

In addition, the added support structure inthe aft section of the helicopter wasanalysed and tested to improve fatiguelife both with and without the suppressorinstalled.

Background

Qualification Program

International Users

Production

The CH-47 is in operation with severalarmed forces around the world, includingthe U.K., Holland, Canada, Australia,Spain, Japan, Italy, Korea, Singapore,and Greece. The grant of the AWR clearsthe way for these forces to acquire thetechnology. Boeing Integrated DefenceSystems (IDS) will act as the LeadSystems Integrator (LSI) for the sale ofthe CH-47 IRS to the internationalcommunity. Davis will subcontract toBoeing.

In January 2009, Davis celebrated thedelivery of the 50 IRS shipset for theCH-47. We have presently achieved afabrication rate of five shipsets (ten IRSunits) per month, with the capability toramp that rate up to eight shipsets permonth within our current facility. This willallow us to fill international user ordersw i t h n o r m a l l e a d t i m e s w h i l esimultaneously meeting U. S. Armyproduction commitments.

th

DavisApril 2009, Issue 14

CH-47 IR SUPPRESSIONFOCUS

Davis has continued to focus on thedevelopment and fabrication ofaircraft IR suppression technology.With the successful execution of theCH-47 IRS program for the U. S. Armywe have proved that we have theexpertise, technology, quality, andproduction scale to meet therequirements of one of the mostdemanding armed services in theworld.

We continue to invest in research anddevelopment, design solutions to newplatforms, and streamline for ourfabrication processes. We haverecently been contracted to developIR suppressors for the AW129 andBeechcraft King Air 350 aircraft, andhave started an internally fundeddevelopment on the C-130 and C-27J.

Specialization in the field has uniquelypositioned us to provide rapiddevelopment and fabrication of IRsuppressors wi th the qual i tydemanded by the aerospace industry.

CH-47 Boeing-Davis-Honeywell Suppressor

Davis

In July 2006 Davis completed the FAA

certification of an IR suppressor for the

CASA CN-235 aircraft. The CN-235 IRS

utilizes the proven Centre Body Tailpipe

(CBT) concept which provides effective

IR signature reduction for all view angles

around the aircraft. The device fits

discretely within the existing engine

cowling, and causes minimal aircraft

performance effects, including low drag

and engine power penalty.

The following polar plot illustrates the

measured mid wave IR signature of both

the baseline and suppressed CN-235 for

a series of azimuth angles around the

aircraft.

CN-235 Centre Body Tailpipe IRS(engine cowling removed)

CASA CN-235 TRANSPORT

Continued on Page 2

Contrast Radiant Intensity (3-5um)

30

60

90

120

150

180

210

240

270

300

33030

60

90

120

150

180

210

240

270

300

330

Stock Tailpipe

Davis CBT

Davis has been awarded a six yearcontract by Agusta Westland (AW) inCascina Costa, Italy, for the developmentand fabrication of an IR suppressor for theA129 helicopter with the LHTEC T800engine.

AGUSTA WESTLANDA129 HELICOPTER

Agusta Westland A129 Attack Helicopter

AW is under contract with the TurkishSSM to deliver the A129 attack helicopterto the Turkish Land Forces (TLF) underthe T129ATAK program.

By the application of proven IRsuppression technology, we have beenable to commit to the delivery of aproduction representative flight prototypein 9 months from contract award.

The organization of the program is amodel of how to develop a robust, wellintegrated, high performance IRsuppressor: Davis customizes the enginee x h a u s t I R S , w h i c h w e h a v econtinuously improved over the past tenyears, AW ensures seamless integrationwith the airframe, and LHTEC providesthe engine test bed.