Encyclopedia Astronautica
RM-1-1



rdrm11.jpg
RM-1-1
Credit: Boeing / Rocketdyne
Rocketdyne N2O4/MMH rocket engine. 4.4 N. Satellite Reaction Control System. Pressure-fed. Isp=245s.

Thrust: 4.41 N (0.99 lbf).
Specific impulse: 245 s.
First Launch: 1967.

More... - Chronology...


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Associated Propellants
  • N2O4/MMH Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Monomethylhydrazine (CH3NHNH2) is a storable liquid fuel that found favour in the United States for use in orbital spacecraft engines. Its advantages in comparison to UDMH are higher density and slightly higher performance. More...

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