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Su-37 Sukhoi
ASCC codename: Flanker
Multi-Role Fighter

The Sukhoi Su-37 (not to be confused with the S-37) was developed as yet another advanced derivative of the Su-27 family. The Su-37 project was funded entirely by Sukhoi and consisted of two Su-35 prototypes that were modified with several additional improvements. The Su-37 design incorporated the canards and digital fly-by-wire control system of the Su-35 while also adding axisymmetric steerable nozzles to provide thrust vectoring capability and hands-on-throttle-and-stick (HOTAS) pilot controls.

The resulting Su-37 design achieved a level of super-maneuverabilty unmatched by any contemporary fighter. A test pilot reported that the controls were so effective that the aircraft could recover from spins and stalls at almost any altitude. Although the two Su-37 prototypes demonstrated impressive maneuverability, Sukhoi was unable to attract any customers for the design. The Russian Air Force expressed interest in the remarkable abilities of the Su-37 but indicated it would not purchase a production model due to the service's financial difficulties. Sukhoi instead focused on the export market but no sales have resulted and the Su-37 has not entered production. It is believed Sukhoi has cancelled further work on the Su-37 due to lack of funding and the two prototypes were reportedly converted back into Su-35 models. Some of the advanced features tested on the Su-37 appear to have been incorporated into the Su-35BM production variant.

Last modified 13 September 2009

First Flight 2 April 1996
Service Entry

did not enter service

CREW: one: pilot



Wing Root unknown
Wing Tip


Length 72.83 ft (22.22 m)
Wingspan 48.17 ft (14.70 m)
Height 21.08 ft (6.43 m)
Wing Area 666 ft (62.0 m)
Canard Area


Empty 40,785 lb (18,500 kg)
Normal Takeoff 56,590 lb (25,670 kg)
Max Takeoff 74,955 lb (34,000 kg)
Fuel Capacity 29,540 lb (13,400 kg)
Max Payload

17,640 lb (8,000 kg)

Powerplant two Saturn/ Lyul'ka AL-31FU afterburning turbofans
Thrust unknown

Max Level Speed at altitude: 1,490 mph (2,400 km/h) at 32,780 ft (10,000 m), Mach 2.3
at sea level: unknown
cruise speed: 870 mph (1,400 km/h) at 32,780 ft (10,000 m)
Initial Climb Rate 45,235 ft (13,800 m) / min
Service Ceiling 59,055 ft (18,000 m)
Range typical: 1,730 nm (3,200 km)
ferry: 3,505 nm (6,500 km)
g-Limits +9

Gun one 30-mm GSh-301 cannon (149 rds)
Stations twelve external hardpoints and two wingtip rails
Air-to-Air Missile R-27/AA-10 Alamo, R-73/AA-11 Archer, R-77/AA-12
Air-to-Surface Missile unknown
Bomb unknown
Other rocket pods, ECM pods

Su-37 'Flanker-F' Prototypes were modified from Su-35 airframes, but the aircraft did not enter production; 2 converted
(?) A two-seat model was apparently planned but the designation is unknown




did not enter service



  • Donald, David and Lake, Jon, ed. The Encyclopedia of World Military Aircraft. NY: Barnes & Noble, 2000, p. 418, Sukhoi Su-37.
  • Paul Nann's Military Aviation Photo Gallery
  • Rendall, David. Jane's Aircraft Recognition Guide, 2nd ed. London: Harper Collins Publishers, 1999, p. 104, Sukhoi Su-33/35/37 Flanker.
  • Spick, Mike. Brassey's Modern Fighters: The Ultimate Guide to In-Flight Tactics, Technology, Weapons, and Equipment. Washington, DC: Brassey's, 2000, p. 82-87, Sukhoi Su-27, -35 and -37 Flanker.
  • Taylor, Michael. Brassey's World Aircraft & Systems Directory 1996/1997. London: Brassey's, 1996, p. 95-96, Sukhoi Su-35 (Su-27M) and Su-37 (NATO name Flanker).
  • Taylor, Michael J. H. Brassey's World Aircraft & Systems Directory 1999/2000. London: Brassey's, 1999, p. 76-77, Sukhoi Su-35 and Su-37, or Su-27M (NATO name Flanker).

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