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800px-Pratt & Whitney F119

An engine test

The Pratt & Whitney F119 engine, is the Turbofan monted on the Lockheed Martin F-22 Raptor Stealth Fighter. It is equipped with 2D Thrust vector control, to enhance the agility of the aircraft and it allows the F-22 to Supercruise at speeds up to Mach 1.82. Currently the F-22 is the only operational aircraft using this engine, it was also included on the Boeing X-32 and the Lockheed Martin X-35 for the Joint Strike Fighter competition and on the YF-22´s Advanced Tactical Fighter competitor Northtrop YF-23. But it is also planned to be included on the Rockwell B-1R, to allow it to fly at speeds of Mach 2 and it would give it the ability to Supercruise. The engine has a wet thrust of over 157 kN, but it´s top thrust is classified; the dry thrust is 116 kN.


DescriptionEdit

In the 1980´s Pratt & Whitney developed the YF119 prototype engine, to meet the US Air Force ( and at this time
800px-Pratt & Whitney YF-119 USAF
Navy ) requirements, for the Advanced Tactical Fighter competition. The first time it was used in 1990 by the Lockheed Martin YF-22 and the Northtrop YF-23 competitor. To reduce maintenace for the engine 40 % fewer parts were used in comparison to at this time conventional engines. The F119 engine allows the F-22 Raptor to Supercruise, what means the F-22 is able to fly faster then the sound without use of Afterburner ( up to Mach 1.82 ), this results in to better fuel effectiveness and an increased combat radius. The engine was selected in 1991 for the F-22 Raptor, the winner of the Advanced Tactical Fighter competition. The top thrust of the engine with full afterburner is known to be about 157 kN, but this is in realty much higher, how much is unknown, but probably much, because the top thrust is classified by the US Air Force.
800px-P&W F119

The vectoring nozzles


SpecificationsEdit

Type Pratt & Whitney F119-PW-100
Model Twin spool, counter rotating augmented Turbofan
Wet thrust Over 157 kN ( top thrust is classified )
Dry Thrust About 116 kN
Length 5.16 m
Engine control Full authority digital electronic control
Nozzle Two dimensional thrust vectoring convergent/divergent
Weight 1,769 kg
Thrust-to-weight 9:1
Combustors Annular Combuster

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