The engine was selected by the U.S. Air Force for the exclusive motorisation of the C-17 Globemaster III, an advanced four-engine aircraft destined for military transport. The Pratt&Whitney F117 has over 8 million flight hours.
The F117-PW-100 engine is the military version of the commercial PW2000 engine.
Avio, partner of Pratt&Whitney and MTU, is responsible for the design, development, production and supply of spare parts for the accessory drive train, the gearbox recovery oil pump and the oil tank.
The engine is a twin-shaft turbofan with high dilution ration and is equipped with a Full Authority Digital Electronic Control (FADEC) system.
The current F117 engine - in the RTC (Reduced Temperature Configuration) - uses advanced technologies and materials such as the second-generation of turbines with “single-crystal” airfoils, an improved cooling system and thermal-barrier coatings to reduce wall temperatures.
These improvements have contributed to excellent reliability, duration and reduction in maintenance costs.
It has a twin-shaft configuration featuring:
| Max Power at SL | 40.400 lb |
| Fan diameter | 78.5 inches |
| Overall pressure ratio | 30.8 - 1 |
| Bypass ratio | 5.9 - 1 |
| Accessory Drive Train |
| Other Components |
