Encyclopedia Astronautica
11D431


Melnikov N2O4/UDMH rocket engine. 6 N. Yantar-2K orbital propulsion. In Production. Orbital propulsion system of the Yantar-2K military satellite, including one 11D430, four 11D431, four 11D446, and eight 11D428. Up to 150,000 ignitions.

Application: Yantar-2K orbital propulsion.

Status: In Production.
Thrust: 5.88 N (1.32 lbf).
Burn time: 2,000 s.

More... - Chronology...


Associated Countries
See also
Associated Manufacturers and Agencies
  • Melnikov Russian manufacturer of rocket engines. Melnikov 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
  • Sorokin, Vladislav, "'Yantarnaya istoriya'", Novosti Kosmonavtiki, 1997, Issue 17, page 57.

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