Sukhoi bomber in 1937. The BB-1 was approved and under a July 29, 1939 government resolution, the Sukhoi OKB, designated as OKB-51, also known as the Sukhoi Design Bureau, was developed in order to set up production for the aircraft. The BB-1 was introduced and later adopted by the Soviet Air Forces in the same year. A year later, the BB-1 was later designated the Sukhoi Su-2. A total of 910 Su-2 aircraft were developed. The resolution also made Sukhoi chief designer, gave Sukhoi's team of the design bureau standalone status and relocation of the bureau to the Production Aircraft Plant
Sukhoi Su-15 the Su-15 was abruptly retired from the new Russian Air Force in 1993 to comply with the Treaty on Conventional Armed Forces in Europe. Most were hastily scrapped in favour of more advanced interceptors, including the Su-27 and MiG-31, but some are in reserve storage for emergency use. In Ukraine, the last Su-15s (at Kramatorsk and Belbek) were withdrawn from use in 1996. Some Western reports indicate that the Su-15TM was also designated Su-21 and the Su-15UM Su-21U. These reports are apparently incorrect. Designation Su-21 was reserved for Su-17M4 but never used. Sukhoi Su-15 The Sukhoi Su-15 (NATO reporting name: