 | This article needs additional citations for verification. (January 2017) |
| S-21 | |
|---|---|
 Sukhoi SSBJ project model | |
| General information | |
| Type | Supersonic business jet |
| Manufacturer | Sukhoi Design Bureau/Gulfstream Aerospace |
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.[1]
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 much research and development has gone into the management of the troublesome transonic effects phenomena associated with near Mach 1 air speeds.
As of 2012, the project had not received any funding for the 2013-2025 development period and appeared to be cancelled.[2]
- ^ Clarke, Chris (November 24, 2015). "11 Outlandish Attempts To Build The Next Concorde". Popular Mechanics. Retrieved November 17, 2016.
- ^ "Государственная программа Российской Федерации "Развитие авиационной промышленности на 2013 - 2025 годы"" (PDF). Минпромторг России. Archived from the original (PDF) on 2013-04-15. Retrieved 2013-03-30.