Pratt & Whitney F135

F135
F135 engine during the JSF System Development and Demonstration (SDD) phase
Type Turbofan
National origin United States
Manufacturer Pratt & Whitney
Major applications Lockheed Martin F-35 Lightning II
Developed from Pratt & Whitney F119

The Pratt & Whitney F135 is an afterburning turbofan developed for the Lockheed Martin F-35 Lightning II, a single-engine strike fighter. It has two variants; a Conventional Take-Off and Landing (CTOL) variant used in the F-35A and F-35C, and a two-cycle Short Take-Off Vertical Landing (STOVL) variant used in the F-35B that includes a forward lift fan. The first production engines were delivered in 2009.

Developed from the Pratt & Whitney F119 engine used on the F-22 Raptor, the F135 produces around 28,000 lbf (125 kN) of thrust and 43,000 lbf (191 kN) with afterburner. The F135 competed with the General Electric/Rolls-Royce F136 to power the F-35.

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