Encyclopedia Astronautica

Kosberg N2O4/UDMH rocket engine. 211 kN. R-29RM / RSM-54 (SS-N-23) stage 1 vernier. Out of Production. Four-chamber steering engine in system RD-0243 driven by turbine exhaust gas. Isp=300s. First flight 1985.

Application: R-29RM / RSM-54 (SS-N-23) stage 1 vernier.

Chambers: 4. Chamber Pressure: 147.00 bar. Area Ratio: 14. Oxidizer to Fuel Ratio: 2.6.

Status: Out of Production.
Thrust: 211.00 kN (47,434 lbf).
Specific impulse: 300 s.
Specific impulse sea level: 280 s.
Burn time: 79 s.
First Launch: 1977-85.

More... - Chronology...

Associated Countries
See also
Associated Launch Vehicles
  • R-29RM Russian submarine-launched ballistic missile. SLBM on Delta 4 subs. First flight June 1983. Developed 1973-1986. More...

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

Associated Propellants
  • N2O4/UDMH Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Unsymmetrical Dimethylhydrazine ((CH3)2NNH2) became the storable liquid fuel of choice by the mid-1950's. Development of UDMH in the Soviet Union began in 1949. It is used in virtually all storable liquid rocket engines except for some orbital manoeuvring engines in the United States, where MMH has been preferred due to a slightly higher density and performance. More...

  • Vick, Charles, et al, KH-11 Photography of N1, Federation of American Scientists, 1995-present. Web Address when accessed: here.
  • Golubev, A A, KB KhimAvtomatiki - Straniy Istorii, Vol. 1, Voronezh 1995 via Dietrich Haeseler.
  • Haeseler, Dietrich, CADB-information leaflets, International Aerospace Show Berlin 1998 (ILA 98) via Dietrich Haeseler.
  • Russian Arms Catalogue, Vol 5 and 6, Military Parade, Moscow via Dietrich Haeseler.

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