Encyclopedia Astronautica
Stepanov LK/LOK 40 kgf


Stepanov N2O4/UDMH rocket engine. 0.390 kN. LK/LOK attitude. Out of Production.

Application: LK/LOK attitude.

Status: Out of Production.
Thrust: 390 N (80 lbf).
First Launch: 1965-72.

More... - Chronology...


Associated Countries
See also
Associated Manufacturers and Agencies
  • Stepanov Russian manufacturer of rocket engines. Stepanov 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...

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