Download - Stealth fightr ppt 5th sem rajnish
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STEALTH FIGHTER
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PRESENTED BY-
RAJNISH PRIYADARSHI11135172 (5TH B1 MECH.)
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INTRODUCTION
They uses the technology i.e VLO “VERY LOW OBSRVABLE TECHNOLOGY..”
Fighter planes are made so they are harder to be detected by the radar and other devices
They uses the technologies that reduce reflection/emission of radar, infrared,visible light, radio-frequency (RF) spectrum, and audio, known as stealth technology.
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BRIEF HISTORY
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HORTEN HO 229 flying wing first stealth aircraft developed in GERMANY during the last year of WW2 in 1944.
ROLE-fighter/Bomber
PRIMARY USER-German Air Force
FIRST FLIGHT-1 March 1944
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LOCKHEED SR 71(BLACKBIRD)This stealth aircraft was launched in the
year 1964 in US.
ROLE-To collect imaginery intelligance, signal intelligence, measurement intelligence.
PRIMARY USER-Us Air Force
FIRST FLIGHT-22 December 1964
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STEALTH TECHNOLOGYGOAL :
TO MAKE AIRCRAFT INVISIBLE TO ENEMY RADAR
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How stealth technology avoid radar detection?
Two major Factors..
Aircraft design
Materials been used
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Material used
in aircraft
Radar absorbent materials –RAM (Iron ball paint)
Radar absorbing structures- RAS (Honeycomb structure)
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RADAR
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coventional aircraft stealth fighter
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LIST OF SOME STEALTH FIGHTER
AIRCRAFTS
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F-117 NIGHTHAWAKNATIONAL ORIGIN-United States
INTRODUCTION-October 1983
PRIMARY USERS-US Air Force
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LOCKHEED MARTIN F-22NATIONAL ORIGIN-United states
INTRODUCTION-15 December 2005
PRIMARY USERS-US Air Force, Royal Air Force
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SUKHOI PAK FA T-50 NATIONAL ORIGIN-
Russia
INTRODUCTION-December 2016
PRIMARY USERS-Russian Air Force , Russian Navy
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J-20 AIRCRAFTNATIONAL ORIGIN-China
INTRODUCTION-2018(Planned)
PRIMARY USERS-Peoples Liberation Army Air Force
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USES
OPERATION DESERT STORM
(17 January 1991 – 28 February 1991)
LOCATION-Israel,kuwait,saudi
arabia,iraq
2003 INVASION OF IRAQ
(20 March – 1 May 2003)
LOCATION-Iraq
Employed to strike HIGH
VALUE TARGET..
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ADVANTAGE:ADVANTAGE:Reduces the causality rates during war
Saving military budget.
Develop the military secretes
Stealth aircraft are invisible to radar
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DISADVANTAGE:B-2 F-117
F-22
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SUMMARY•Stealth technology referred as “VLO” ie “VERY LOW OBSERVABLE TECHNOLOGY”
•first true "stealth" aircraft may have been the Horten Ho 229 flying wing
•The goal of stealth technology is to make an airplane invisible to radar
•RAM reffers to “RADAR ABSORBENT MATERIALS” .RAM Reffers to “RADAR ABSORBENT MATERIALS” . •Active cancellation is a theoretical military jamming system• •Plasma stealth is a proposed process that uses ionized gas (plasma) to reduce the radar cross se ction (RCS) of an aircraft.
•to degrading the performance of IRST systems is to ensure that the exhaust dissipates as quickly as possible after leaving the aircraft.
•Over-the-horizon radar is a design concept that increases radar's effective range over conventional radar
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