Encyclopedia Astronautica
RD-274


Glushko N2O4/UDMH rocket engine. 4952 kN. Developed 1975-85. Upgrade of RD-264 engine with increased chamber pressure and thrust. Development stopped due to problems with turbopump shaft balance.

Other sources say development was completed and the engine was built for the R-36M2 ICBM. Consists of four RD-273 engines.

Chambers: 4. Chamber Pressure: 226.00 bar.

Status: Developed 1975-85.
Thrust: 4,952.00 kN (1,113,253 lbf).
Specific impulse: 296 s.
Specific impulse sea level: 296 s.
First Launch: 1975-85.

More... - Chronology...


Associated Countries
See also
Associated Launch Vehicles
  • R-36M2 15A18M Ukrainian intercontinental ballistic missile. The R-36M2 was the Soviet Union's answer to the American 'Star Wars' anti-ballistic missile system. It was unusually named 'Voevoda' (an old Russian word for the leader of an army) in recognition of its planned role. In the end, it was only deployed in very limited numbers before the end of the Cold War. More...
  • Dnepr Ukrainian orbital launch vehicle based on decommissioned R-36M2 intercontinental ballistic missiles. More...

Associated Manufacturers and Agencies
  • Glushko Russian manufacturer of rocket engines and rockets. Glushko 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...

Bibliography
  • Rakhmanin, V F, Odnazhdy i Navsegda, NPO Energomash, Moscow 1998 via Dietrich Haeseler.

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