Dual Mode-Liquid Apogee Engine

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Dual Mode-Liquid Apogee Engine

TRW MON/Hydrazine rocket engine. In Production. First Flight: April 1991. Burn Time 24,000 sec total, with a 3600 sec maximum single burn. Hypergolic ignition via 28 V current to an on/off bi-propellant torque motor valve.

Status: In Production. Thrust: 454 N (102 lbf). Unfuelled mass: 4.80 kg (10.50 lb). Specific impulse: 315 s. Burn time: 3,600 s. Height: 0.56 m (1.84 ft). Diameter: 0.30 m (0.99 ft).

Mounting: fixed. Engine Cycle: pressure-fed at 15 atm. Oxidizer: MON 3-flow rate at 0.076 kg/sec. Fuel: high purity hydrazine-flow rate at 0.071 kg/sec. O/F Ratio: 1.070:1. Cooling Method: radiation.

Engine: 4.80 kg (10.50 lb). Chamber Pressure: 7.00 bar. Area Ratio: 204. Thrust to Weight Ratio: 9.58.

Family: Storable liquid. Country: USA. Propellants: MON/Hydrazine. Agency: TRW.

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