Pratt & Whitney PW4000

Pratt & Whitney PW4000 is a high-bypass turbofan family spanning 94-inch, 100-inch, and 112-inch fan classes. The 94-inch class powers Boeing 747/767 variants, the 100-inch class powers Airbus A330 aircraft, and the 112-inch class powers Boeing 777 aircraft; military and freighter derivatives extend the same architecture. In service since 1987, PW4000 engines have accumulated more than 140 million flight hours across nearly 70 operators, with active support for current fleets.