Sukhoi Su-37 the code "711 Blue", later changed to "711 White". Following ground checks at the Gromov Flight Research Institute, the aircraft made its maiden flight on 2 April 1996 from Zhukovsky Airfield outside Moscow, piloted by Yevgeni Frolov. The nozzles were fixed during the first five flights. Due to the lack of funding from the Russian Air Force, Sukhoi was compelled to finance the project with its own funds; according to Simonov, the company channelled revenue from the exports of the Su-27s to China and Vietnam towards the project. The aircraft was publicly unveiled at Zhukovsky later in the year, and
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