Powering the F-22

The F-22 Raptor is powered by two Pratt & Whitney F119-PW-100 turbofan jet engines. The F119-PW-100 is the most powerful fighter jet engine ever developed, with a maximum thrust of 39,000 lbs. By comparison, the second highest jet engine thrust is 29,000 pounds, put in the F-16 fighter. The two turbofan engines give the F-22 a top speed of Mach 2.42, or 1,600 mph!


How a Turbofan Engine Works
A gas turbofan engine is made up of three basic parts:
1. Compressor: A cone-shaped cylinder with small fan blades attached in rows. It's job is to compress the incoming air to high pressure and direct the air towards the combustion area.

2. Combustion area: The high pressure air from the compressor enters the combustion area where a ring of fuel injectors injects a steady stream of fuel into the air, and then the fuel-air mixture is ignited.

3. Turbine: The high-velocity exhaust gas that exits the combustion chamber exerts force against the turbine blades and causes them to turn. The turbine is connected to part 1 of the engine, the compressor, and the energy created by spinning the turbine in turn spins the compressor, which draws in more air, and the whole cycle is started over again.

The beauty of the turbofan engine is that the compressor is turned by air that has already traveled through the engine.

The three basic parts of the turbofan engine are shown from left to right: 1. Compressor, 2. Combustion area, 3. Turbine

inside of the Pratt & Whitney F119-PW-100. Notice the three basic parts of a turbofan engine are shown. 

The Beginning...
Radar and How to Evade It
Powering the F-22
F-22 Turbofan Extras