Great documentary : Russian Air Power /Su-24 II Su-34 II Su-25 II MiG-29 II Su-27 (25 min – English language)
Five PAK-FAs have been produced and three more are now being constructed at the Sukhoi Aviation Holding Company Y.A.Gagarin in Komsomolsk-on-Amur (KnAAZ).Sophisticated equipment, stealth technology, super maneuverability, weapons,…placing T-50 or PAK-FA fighter jet to 5th generation fighter jet class. Someone saying this is a copy of American project and serial produced F-35 or F-22, but we just can guess this is final project of many years experience and knowledge in OKB Sukhoi corporation, which tracking military trends and requests to stay in aviation and technological race, side by side with possible opponents.
Similar to F-22, Sukhoi PAK-FA should be able to cruise supersonically for extended periods of time. PAK-FA is powered by highly upgraded AL-31F engines that powers the Su-35S and initial production PAK FA aircraft. , and received code name Izdeliye 117 or AL-41F1, made for supercruise. It is also notable that the engine is capable of mounting 3D thrust vectoring nozzles for extra manoeuvrability.
PAK-FA is also equipped with a powerful avionics package, which is an evolution of Sukhoi’s work on the Flanker family fighters, like Su-35.There is very high power-aperture X-band multimode AESA radar.
PAK-FA is still testing and for sure will have some changes, modifications. Developing by two sides, India and Russia, we will have two users in start. The Russian Air Force (VVS) will have received 55 Sukhoi PAK-FA (T-50) fighter aircraft by 2020.India planned on acquiring modified PAK FA as a part of its Fifth Generation Fighter Aircraft (FGFA) program. It originally planned on buying 166 single-seat and 44 two-seat variants, but this has since been reduced to 144 single-seat aircraft due to cost.
The aircraft is expected to have a service life of up to 35 years.
sources: janes.com ; wikipedia
About Flankers prototypes T-10 you can read more HERE !!!