The Sukhoi Su-35 is the designation for two improved derivatives of the Su-27 air-defence fighter. They are single-seat, twin-engine, supermaneuverable aircraft, designed by the Sukhoi Design Bureau and built by the Komsomolsk-on-Amur Aircraft Plant. The first variant was designed during the 1980s as an improvement on the Su-27 and was known as the Su-27M. This derivative incorporated canards and a multi-function radar that transformed the aircraft into a multi-role aircraft, which was structurally reinforced to cope with its greater weight. The first prototype made its maiden flight in June 1988. As the aircraft was not mass-produced due to the Dissolution of the Soviet Union, Sukhoi re-designated the aircraft as Su-35 to attract export orders. The fourteen aircraft produced were used for tests and demonstrations; one example had thrust-vectoring engines and the resultant Su-37 was used as a technology demonstrator. A sole Su-35UB two-seat trainer was also built in the late 1990s that resembled the Su-30MK family.

Info: Sukhoi Su-35 Chinese Air Force by Air Force 1