Sukhoi bureau designed a two-seat armored ground-attack aircraft, the Sukhoi Su-6, considered in some terms to be superior to its competitor, the Ilyushin Il-2. The government however later chose the Il-2 over the Su-6, but rewarded Sukhoi a Stalin Prize of the 1st Level for its development in 1943. Sukhoi and this team later focused on development of variants of the Su-2, the prototype cannon-armed Sukhoi Su-1 (Su-3) fighter, as well as the Sukhoi Su-8, which to serve as a long-range ground-attack aircraft for the Soviet Air Forces, but was later discarded as the Soviet Union was winning the Eastern Front.
Sukhoi-Gulfstream S-21 speeds. As of 2012, the project had not received any funding for the 2013-2025 development period and appeared to be cancelled. Sukhoi-Gulfstream S-21 Sukhoi-Gulfstream S-21 was a projected Russian-American supersonic business jet. In the early 1990s, Gulfstream Aerospace and the Sukhoi Design Bureau began a joint effort to develop a supersonic small business jet, code named the S-21. Due to questionable market demand for commercial supersonic air travel, commitment to the project weakened and delays mounted. Gulfstream eventually dissolved the partnership, although Sukhoi continued work on the S-21. The S-21 would be capable of sustained cruise at Mach 2+ and