Sukhoi T-60S Sukhoi in 1984 but was cancelled after the Cold War ended in the early 1990s. The bomber was to have replaced the Tu-22M in the Soviet Air Force. Instead, Sukhoi decided took a more conventional approach and developed the Su-34 as a replacement for the Tu-22M. Sukhoi T-60S The Sukhoi T-60S was a planned Soviet 1980s replacement for the Tu-22M3. The supersonic intermediate range bomber never got past the drawing board. Very little information is available about technical characteristics of this aircraft, which remains classified by the Sukhoi Design Bureau. It was believed that T-60S would have featured a variable
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 In Ukraine, the last Su-15s (at Kramatorsk and Belbek) were withdrawn from use in 1996.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: