Pratt & Whitney PW2000

The Pratt & Whitney PW2000 is a family of high-bypass turbofan aircraft engines in the 37,000 to 43,000 pounds-force thrust range, also known by the United States military designation F117 and, during its early design, as the JT10D. Pratt & Whitney began work on the JT10D in October 1971, aiming at the McDonnell Douglas YC-15 transport and the project that became the Boeing 767, and in December 1980 the company changed its naming system and the engine became the PW2037. It is a two-spool engine with an annular combustor and a dual-channel full authority digital engine control, and it was certified in 1984 as the first civilian engine controlled that way. Designed for the Boeing 757, where it competes with the Rolls-Royce RB211, the first PW2037-powered 757 flew on 14 March 1984 and Delta took the first delivery that November. The F117 version powers the Boeing C-17 Globemaster III, and the engine also powered the Ilyushin Il-96M. MTU Aero Engines holds a 21.2 percent stake in the project.