Encyclopedia Astronautica
RDMT-135


NII Mash N2O4/UDMH rocket engine. 0.135 kN. Salyut, Mir, Soyuz-T and -TM, Progress, Kosmos-satellites. In Production. Low-thrust attitude control thruster. Isp=260s.

Application: Salyut, Mir, Soyuz-T and -TM, Progress, Kosmos-satellites.

Engine: 1.20 kg (2.60 lb). Chamber Pressure: 9.00 bar. Thrust to Weight Ratio: 11.66.

Status: In Production.
Unfuelled mass: 1.20 kg (2.60 lb).
Thrust: 135 N (30 lbf).
Specific impulse: 260 s.

More... - Chronology...


Associated Countries
See also
Associated Manufacturers and Agencies
  • NII Mash Russian manufacturer of rocket engines. NII Mash, 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
  • Haeseler, Dietrich, Datasheets from NII Mashinostroeniye, Nishnaya Salda, 1992 via Dietrich Haeseler.

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