The Sukhoi Su-37 Terminator (NATO designation: Flanker-F) is a Russian multi-role jet fighter aircraft.
The Su-37 is a single-seat, all-weather, fighter and ground attack prototype aircraft, derived from the Sukhoi Su-27. The Su-27 is a successful Soviet fourth generation jet aircraft that has been exported to several nations, including China. The Su-37 test aircraft made its maiden flight in April 1996 from the Zhukovsky flight testing center near Moscow.
The Su-37 included several updates over the Su-27, including all-weather multi-mode phased array radar with synthetic aperture, terrain avoidance, terrain mapping and a rear facing radar. The airframe includes a percentage of parts made from composites, unlike the all-metal Su-27. Additionally, the Su-37 incorporates the AL-37FU engines equipped with thrust vectoring. Thrust vectoring allows the Su-37 to direct the exhaust gases in 3D, substantially improving maneuverability, especially at low speeds. The Terminator, as it is sometimes called, is also the first Russian aircraft with Hands On Throttle and Stick, or HOTAS, system. The first ever aircraft with HOTAS was the Avro CF-105 Arrow (also known as the Avro Arrow). The first production fighter aircraft with this system was the General Dynamics F-16 Fighting Falcon.
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