Sukhoi-Gulfstream S-21

Sukhoi-Gulfstream S-21 was a projected Russian-American supersonic business jet.

S-21
Sukhoi SSBJ project model
Role Supersonic business jet
Manufacturer Sukhoi Design Bureau/Gulfstream Aerospace
S-21 3D model

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]

Specifications (S-21)

General characteristics

  • Crew: 2
  • Capacity: 6–10 passengers and 2,999 lb (907 kg) useful load
  • Length: 124 ft 2 in (37.86 m)
  • Wingspan: 65 ft 5 in (19.93 m)
  • Wingsweep: 32° unswept 68° swept
  • Height: 27 ft 1 in (8.26 m)
  • Empty weight: 54,167 lb (24,570 kg)
  • Max takeoff weight: 114,200 lb (51,800 kg)
    • With Fuel: 58,465 lb (26,519 kg)
  • Powerplant: 3 × Aviadvigatel D-21A1 turbofan, 16,535 lbf (73.55 kN) thrust each

Performance

  • Maximum speed: 1,483 mph (2,386 km/h, 1,289 kn)
  • Cruise speed: 1,483 mph (2,386 km/h, 1,289 kn)
  • Range: 4,600 mi (7,403 km, 4,000 nmi) at Mach 0.95
  • Range: 2,715 mi (4,369 km, 2360 nmi) at Mach 1.4
  • Service ceiling: 63,900 ft (19,477 m)
  • Thrust/weight: 0.43
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See also

Aircraft of comparable role, configuration and era

Related lists

References
  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.

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