The Raptor's two Pratt & Whitney F119-PW-100 turbofan engines are equipped with afterburners and two dimensional thrust vectoring nozzles. The two engines develop a total of 70,000 lbs. of thrust for the 40,000 lb. airframe, allowing incredible acceleration and vertical climb performance. The vectored thrust and large control surfaces can produce maneuvers that no conventional fighter jet can perform.
2008 USAF F-22 Raptor Stealth Fighter video. Demonstration Pilot Major "Max" Moga narrates each maneuver he performing at the airshow.
In this photo of the tail section of the F-22 Raptor, you can see the detail of the thrust vectoring system. The computer controlled augmentation enables the pilot to go beyond "normal" maneuvering envelopes. In air-to-air combat, it is essential to be able to have the maneuverability to keep the target engaged, not only visually, but also the aircraft's fire control systems and weapons.
***Check out the video here: http://www.kbvp.com/extreme-videos/f-22-raptor
Major Paul "Max" Moga and the F-22 Raptor. This is a frame grabbed from the F-22 video. Major Moga did the entire narration for the video in one take and no pauses. His flight demonstration in the F-22 was a huge hit at the California Capital Airshow 2007. The vectored thrust can really alter the whole way you think about normal maneuvering.