F-119 Engine Jet engine maker Pratt & Whitney, and U.S. Air Force at the F119 Heavy Maintenance Center (HMC) at Tinker Air Force Ba...
 |
| F-119 Engine |
The F119 HMC is an award-winning overhaul facility dedicated to the maintenance of F119-PW-100 engines for the fifth generation Raptor.
P&W manages the engine and module repair, technical support and overhaul processes, while Tinker personnel perform overhaul and repair activities, including cleaning and inspection services.
Each F119-PW-100 engine is scheduled for depot induction for major inspection and overhaul maintenance at the HMC facility. The HMC has been supporting unscheduled maintenance for the F119 fleet since its doors opened for business in 2004. The partnership work load increased beginning in 2010 when early production F119 engines began to be inducted into the HMC.
The F119-PW-100 turbofan is the only operational fifth generation fighter engine today, and is the most advanced production engine combining stealth technologies and vectored thrust with high thrust-to-weight performance to provide unprecedented maneuverability and survivability.
Two Pratt & Whitney F119 engines power the F-22 Raptor. Supercruise, the ability to operate supersonically without afterburning, gives the F-22 exceptional combat performance without compromising mission range.
Its three-stage integrally bladed fan is powered by a single-stage low-pressure turbine. The engine’s counterrotating core has an aerodynamically efficient six-stage compressor driven by a single-stage high-pressure turbine featuring the latest single-crystal superalloy blades and advanced cooling technologies.
The robust, yet compact, high-pressure compressor features the most advanced airfoil aerodynamics and integrally bladed rotor disks for ensured durability.
The F119 engine delivers unparalleled aircraft maneuverability with its unique two-dimensional pitch vectoring exhaust nozzle. This convergent/divergent nozzle vectors thrust as much as 20 degrees up or down. Nozzle position management is integrated with the F-22 flight control systemand is automatically regulated by the Full-Authority Digital Electronic Control (FADEC), as are hundreds of other engine andaircraft operating parameters. The FADEC also features advanced diagnostics and on-condition management capability for maintenance awareness, autonomic logistics support and automatic field and test data processing.
