Sukhoi After the war, Sukhoi and his team were among the first Soviet aircraft designers who led the work on jet aircraft, creating several experimental jet fighters. Sukhoi started developing two jet fighters, the Sukhoi Su-5 and the Sukhoi Su-7 before 1945. The Su-5 is a mixed power jet fighter, using both a propellor and a motorjet to power it, but the experiment was later cancelled even though the fighter had a maiden flight in April 6, 1945. The Su-7 is a swept-wing, supersonic, air superiority fighter, and it was successful as it was adopted by the Soviet Air Forces in
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