Sukhoi-Gulfstream S-21

S-21
Sukhoi SSBJ project model
General information
TypeSupersonic business jet
ManufacturerSukhoi Design Bureau/Gulfstream Aerospace
S-21 3D model

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]

  1. ^ Clarke, Chris (November 24, 2015). "11 Outlandish Attempts To Build The Next Concorde". Popular Mechanics. Retrieved November 17, 2016.
  2. ^ "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.