The Sukhoi PAK FA (Russian: Сухой ПАК ФА, Russian: Перспективный авиационный комплекс фронтовой авиации, Perspektivny Aviatsionny Kompleks Frontovoy Aviatsii, literally "Prospective Airborne Complex of Frontline Aviation") is a twin-engine jet fighter being developed by Sukhoi for the Russian Air Force. The Sukhoi T-50 is the prototype for PAK FA.[11] The PAK FA is one of only a handful of stealth
jet programs worldwide.[12]
The PAK FA, a fifth generation jet fighter, is intended to be the successor to the MiG-29 and Su-27 in the Russian inventory and serve as the basis of the Sukhoi/HAL FGFA being developed with India.[13][14] The T-50 prototype performed its first flight 29 January 2010. The Russian Defence Ministry will purchase the first 10 evaluation example aircraft after 2012 and then 60 production standard aircraft after 2016. The PAK-FA is expected to have a service life of about 30–35 years. General characteristics
Crew: 1
Length: 19.8 m (65.9 ft)
Wingspan: 14 m (46.6 ft)
Height: 6.05 m (19.8 ft)
Wing area: 78.8 m2 (848.1 ft2)
Empty weight: 18,500 kg (40,785 lb)
Loaded weight: 28,800 kg (63,490 lb)
Useful load: 7,500 kg (combat load) (16,534 lb)
Max. takeoff weight: 37,000 kg (81,570 lb)
Powerplant: 2 × AL-41F1 for prototypes[N 1][106] turbofan, 147 kN (33,047 lb) for prototypes;[107] 175 kN (34,620+ lbf) for definitive engine version[107][108] each
Fuel capability: 10,300 kg (22,711 lb)[104]
Performance
Maximum speed: Mach 2+, 2,100-2,600 km/h[104][106][109] (1,300-1,560 mph) ; at 17,000 m (55774.3 ft) altitude
Cruise speed: 1,300-1,800 km/h[106] (808-1,118 mph)
Ferry range: 5,500 km[110] (3,417 mi)
Service ceiling: 20,000 m (65,000 ft)
Rate of climb: 350 m/s (68,900 ft/min)
Wing loading: 330-470 kg/m2 (67-96 lb/ft2)
Thrust/weight: 1.10
Maximum g-load: 9+ g[104]
Armament
Guns: None on prototype. Apparent provision for a cannon (most likely GSh-301). Possible two 30 mm cannon.[18]
Hardpoints: 10 internal hardpoints and up to 6 external hardpoints: two internal bays running longitudinally on the fuselage supporting 6 R-27/R-77 AAMs (3 each)[111] or 4 R-33/R-37 AAMs (2 each), plus 2 small internal wing bays for 2 R-73 AAMs and up to six external hardpoints.[112] Including the advanced X-38 air to surface missile.[113]
Avionics
[114]
AESA N050 built by Tikhomirov NIIP. Presumably T-50 radar is a development of Irbis-E designed for Su-35BM[115][116]
Speculated specifications: Radar complex Sh-121 comprising five elements, namely
Main X-band AESA radar, size of 900 by 700 mm and with 1522 T/R modules
2 Side facing smaller X-band AESA radars, to increase angular coverage
2 L-band AESA on the Leading-edge extension for good vlo detection
Possible rear facing X-band AESA for the Indian Sukhoi/HAL FGFA
OEIS (opto-electronic integrated system) 101KS: Consists of 4 parts[117][118]
101KC-D: Anti-IR seeker
101KC-B: Quantam optical radar system
101KC-Y: Optical system for issuing HQ to COP-O
101KC-H: Air to ground mode
