Sukhoi the JSC Sukhoi Design Bureau and the JSC Sukhoi Civil Aircraft, located in Moscow, the Novosibirsk Aircraft Production Association (NAPA), located in Novosibirsk, and the Komsomolsk-on-Amur Aircraft Production Association (KnAAPO), located in Komsomolsk-on-Amur. Sukhoi is headquartered in Moscow. Finmeccanica (since 2017, Leonardo) owns 25% + 1 share of Sukhoi's civil division. The Russian government merged Sukhoi with Mikoyan, Ilyushin, Irkut, Tupolev, and Yakovlev as a new company named United Aircraft Corporation in February 2006. Mikoyan and Sukhoi were placed within the same operating unit. In September 2007, Sukhoi launched its first modern commercial regional airliner—the Superjet 100 (SSJ 100), a
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 In Ukraine, the last Su-15s (at Kramatorsk and Belbek) were withdrawn from use in 1996.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: