Pratt & Whitney F119

The Pratt & Whitney F119 ( manufacturer's designation PW5000 ) is a turbofan engine with afterburner, specifically designed for the air superiority fighter Lockheed Martin F -22 Raptor was developed by the U.S. company Pratt & Whitney. It has a 2D thrust vectoring to increase the maneuverability and the F-22 gives also supercruise capability.

The F135 Pratt & Whitney, which is used in the Lockheed Martin F -35, is an evolution of the F119 with 190 kN thrust.

History

The engine was developed by Pratt & Whitney in competition with General Electric F120 as a drive for the F-22. In April 1991, the F119 was announced as the winner. The development was aimed at a simple and robust design, which should guarantee high reliability, easy maintenance and supercruise capability ( supersonic flight without afterburner ). With this low-risk concept, the company took into account that the construction over the competition development was viewed as less progressive. As the beginning of 1988 it became clear that the weight of the planned fighter would increase significantly, however, it has become possible with simple measures to achieve a thrust increase. Without any other changes to the core engine, it was enough to fan diameter slightly increased.

The test runs began in December 1988, in the summer of 1990, 65 flights have already been carried out with a total duration of 153 hours without engine failure occurred.

Chronology

  • September 1983: Pratt & Whitney begins with the development of the F119 engine.
  • December 1988: First test run of the YF119 prototype to the test.
  • April 1991: Pratt & Whitney F119 wins the tender for the ATF.
  • December 1992: First pre-production model completed the trial run on the test stand.
  • September 1997: First flight of the F- 22nd
  • December 2000: First Series models are delivered to the U.S. Air Force.
  • September 2007: The 300th F119 engine is delivered to the U.S. Air Force.
  • February 2009: The F119 passed the 100,000 flight hour.

Variants

Specifications

1 RAND indicates 7,95:1, with 3900 lbs (1770 kg) engine mass

Lockheed Martin X-35 Boeing X-32 General Electric J85 General Electric F101 General Electric F110 Rolls-Royce Spey General Electric F118 Williams F121 General Electric F404 General Electric F414
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