Encyclopedia Astronautica
MRE-15/OMV


TRW hydrazine monopropellant rocket engine. 0.089 kN. In Production. Isp=225s. Mono-propellant Hydrazine Thrusters.

Mass: 1.13 kg. Length: 26.9 cm. Engine Cycle: decomposition of hydrazine over heated shell catalyst. Thrust: 44.5-89 N in vacuum. Isp: 225 sec in vacuum at steady state conditions. Inlet Pressure: 12-27 atm. Burn Time: 0.020 sec. Total Cycles: 100,000.

Engine: 1.13 kg (2.49 lb). Chamber Pressure: 27.00 bar. Thrust to Weight Ratio: 7.96.

Status: In Production.
Unfuelled mass: 1.13 kg (2.49 lb).
Height: 0.27 m (0.88 ft).
Thrust: 89 N (20 lbf).
Specific impulse: 225 s.
Burn time: 2,000 s.

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Associated Countries
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Associated Manufacturers and Agencies
  • TRW American manufacturer of rockets, spacecraft, and rocket engines. TRW Corporation, Redondo Beach, CA, USA. More...

Associated Propellants
  • Hydrazine Hydrazine (N2H4) found early use as a fuel, but it was quickly replaced by UDMH. It is still used as a monopropellant for satellite station-keeping motors. Hydrazine (N2H4) found early use as a fuel, but it was quickly replaced by UDMH. It is still used as a monopropellant for satellite station-keeping motors. More...

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