Encyclopedia Astronautica
RDMT-400A


NII Mash N2O4/UDMH rocket engine. 0.400 kN. Developed 1980's. Experimental low-thrust thruster. Niobium combustion chamber with coating. Isp=290s.

Engine: 2.80 kg (6.10 lb). Thrust to Weight Ratio: 14.64.

Status: Developed 1980's.
Unfuelled mass: 2.80 kg (6.10 lb).
Thrust: 400 N (80 lbf).
Specific impulse: 290 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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