Pratt and Whitney Awarded $319.8 Million for 32 F135-PW-100 Engines

Pratt and Whitney Engines, a division of United Technologies Corp. (UTC), is awarded a $319.8 million contract modification for 32 F135-PW-100 turbofan engines in support of F-35 Lightning II stealth fighter program.

Out of the 32 F135-PW-100 engines contracted; 20 are for the U.S. Navy, six are for the U.S. Air Force, and the remaining six are for the government of Japan.

The F135-PW-100 engine is used in the F-35A Conventional Take-Off and Landing (CTOL), and F-35C Carrier (CV) variants. The U.S. Navy operates the F-35C variant while the U.S. Air Force and Japan Air Self-Defense Force (JASDF) operate the F-35A CTOL variant.

Fiscal 2020 aircraft procurement (Navy) funds in the amount of $193.3 million; fiscal 2019 aircraft procurement (Air Force) funds in the amount of $73.8 million; and Foreign Military Sales (FMS) funds in the amount of $52.6 million will be obligated at time of award, none of which will expire at the end of the current fiscal year. The U.S. Department of Navy’s Naval Air Systems Command (NAVAIR) is the contracting activity (N00019-18-C-1021)(P00018).

The contract work will be performed in East Hartford, Connecticut (67%); Indianapolis, Indiana (26.5%); and Bristol, United Kingdom (6.5%), and is expected to be complete by December 2022.

Pratt & Whitney F135

The Pratt & Whitney F135 is an afterburning turbofan engine developed by American aerospace manufacturer Pratt & Whitney for the Lockheed Martin F-35 Lightning II single-engine stealth strike fighter.

Developed from the Pratt & Whitney F119 engine used on the F-22 Raptor stealth fighter, the F135 produces around 40,000 lbf of thrust. The F135 competed with the General Electric/Rolls-Royce F136 to power the F-35.

The F135 family has several distinct variants; a conventional, forward thrust variant – F135-PW-100 – and a multi-cycle Short Take-Off Vertical Landing STOVL variant – F135-PW-600 – that includes a forward lift fan. The engine and Rolls-Royce LiftSystem make up the Integrated Lift Fan Propulsion System (ILFPS).

The F135-PW-100 engine is used in the F-35A Conventional Take-Off and Landing (CTOL), and F-35C Carrier (CV) variants while F135-PW-600 is used in the F-35B Short Take-Off Vertical Landing (STOL) variant.

The F135 team is made up of Pratt & Whitney, Rolls-Royce and Hamilton Sundstrand. Pratt & Whitney is the prime contractor for the main engine, and systems integration. Rolls-Royce is responsible for the vertical lift system for the STOVL aircraft. Hamilton Sundstrand is responsible for the electronic engine control system, actuation system, PMAG, gearbox, and health monitoring systems. Woodward, Inc. is responsible for the fuel system.

The first production F135 engines were delivered in 2009.



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