Pratt & Whitney PW4000
| PW4000 | |
|---|---|
| The 112-inch (2.8 m) fan diameter PW4098 used on the Boeing 777 | |
| Type | Turbofan |
| National origin | United States |
| Manufacturer | Pratt & Whitney |
| First run | April 1984 |
| Major applications | Airbus A300-600/Airbus A310 Airbus A330 Boeing 747-400 Boeing 767/KC-46 Boeing 777 McDonnell Douglas MD-11 Scaled Composites Stratolaunch |
| Produced | 1984–present |
| Number built | 2,500 (June 2017) |
| Developed from | Pratt & Whitney JT9D |
| Developed into | Engine Alliance GP7000 |
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The Pratt & Whitney PW4000 is a family of dual-spool, axial-flow, high-bypass turbofan aircraft engines produced by Pratt & Whitney as the successor to the JT9D. It was first run in April 1984, was FAA certified in July 1986, and was introduced in June 1987. With thrust ranging from 50,000 to 99,040 lbf (222 to 441 kN), it is used on many wide-body aircraft.