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The F-22 gets its power from two Pratt & Whitney F119-PW-100 advanced technology reheated jet engines. The F119-PW-100 is the most powerful fighter jet engine ever designed, with a maximum thrust of 39.000 lb. (155 kN).



The F-119 has a three stage fan, a six stage compressor and single stage low and high pressure turbines. Throughout the fan and compressor, the disks and blades are one-piece components. The large, hollow Titanium first-stage blades are made separately and then joined to the disk by friction wielding, a technique in which the blade is rubbed so hard against the disk that it bonds together.




The 2-dimensional vectoring nozzles can divert the full augmented thrust 20 degrees op- or downward in a fraction of a second for enhanced performance and maneuverability. The special nozzle shape provides the aircraft with the required stealth characteristics when viewed from the rear. As the image clearly shows, the exhaust flame can move up and down, enabling the aircraft to perform an AOA (Angle of Attack) of over 60 degrees.




On paper the F-22 is slower than most of today's fighters. Maximum speed is set by airframe temperatures and by the use of fixed geometry air inlets. This because variable inlets are hard to make stealthy. However, the F-22 is able to attain its maximum speed (around mach1.8) with all weapons and most of the fuel; something which no other fighter is capable of.


Without afterburning the F-22 is 50% faster than any other fighter flying at this moment and capable of so-called supercruising; flying up to speeds of mach 1.5 without using afterburner.



Here is another image of the jet engine what it looks like before it is inserted into the F-22's fuselage.


Video of an F119 thrust vectoring test

 
More F119 pictures
Pratt & Withney
How engines work (anim)


F119-PW-100
Thrust vectoring
What is an afterburner?



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