Sukhoi Superjet 100 in 2000. On 19 December 2002, Sukhoi Civil Aircraft and Boeing Commercial Airplanes signed a medium-term Cooperation Agreement to work together on the design. Boeing consultants had already been advising Sukhoi for a year. On 10 October 2003, the suppliers of major subsystems were selected. On 12 March 2004, the Superjet 100 was approved for sale to customers. On 13 November 2004, prototype production was authorised. In August 2005, the Russian government financed the airliner development for 7.9 billion rubles for 2005–2009. On 28 January 2007, the first SSJ was transported by an Antonov 124 from Komsomolsk-on-Amur to Zhukovsky, Moscow
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