Encyclopedia Astronautica
NK-231


Kuznetsov turbofan engine. 226.5 kN. Tu-160. Development ended 1992. Turbofan engine used in Tu-160. Thrust is maximum sea level thrust; specific impulse is sea level value at that thrust. Isp=1980s.

Application: Tu-160.

Thrust (sl): 205.900 kN (46,288 lbf). Thrust (sl): 21,000 kgf.

Status: Development ended 1992.
Thrust: 226.50 kN (50,919 lbf).
Specific impulse: 1,980 s.
Burn time: 58,000 s.

More... - Chronology...


Associated Countries
See also
Associated Launch Vehicles
  • Burlak Russian air-launched winged orbital launch vehicle. Burlak air-launched satellite launcher was proposed in 1992 and studied by Germany in 1992-1994. Evidently based on secret anti-satellite missile. Air launched from Tu-160 bomber, released at 13,500 m altitude and Mach 1.7. Development estimated to cost only DM 50 million, but not proceeded with. Burlak/Diana variant would have been launched from Concorde. More...

Associated Manufacturers and Agencies
  • Kuznetsov Russian manufacturer of rocket engines. Kuznetsov Design Bureau, Russia. More...

Associated Propellants
  • Air/Kerosene Ambient air (78 % nitrogen, 21% oxygen, etc.) is scooped up by air intakes and used in turbojet, turbofan, ramjet, scramjet, or other airbreathing engines. It is used to burn aviation-grade kerosene, commercial grade JP-4 or JP-5, their military equivalents, or special high-temperature blends such as those used in the SR-71. More...

Bibliography
  • Gunston, Bill, The Osprey Encylopedia of Russian Aircraft 1975-1995, Osprey, London, 1995.

Associated Stages
  • Tu-160 Mach 2 rocket launch aircraft. Loaded/empty mass 205,442/99,773 kg. Thrust 533.67 kN. Specific impulse 1980 seconds. Tupolev Bomber-variable geometry. Maximum release conditions: Belly-mounted, 9,977 kg at 2,451 kph at 18,292 m altitude More...

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