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RS-56-OBA

Engine · USA

Original archive entry. The text, images and links below are kept as they were written.

Hot Fire Test 72
Hot Fire Test 72
Hot firing test of Atlas rocket engine.

Rocketdyne LOx/Kerosene rocket engine. Out of production. Designed for booster applications. Gas generator, pump-fed. Booster engine for Atlas II, IIA, IIAS. First flight 1991.

Thrust (sl): 920.800 kN (207,004 lbf). Thrust (sl): 93,897 kgf. Engine: 805 kg (1,774 lb). Chamber Pressure: 48.00 bar. Area Ratio: 8. Propellant Formulation: Lox/RP-1. Thrust to Weight Ratio: 132.298136645963. Oxidizer to Fuel Ratio: 2.25. Coefficient of Thrust vacuum: 1.545. Coefficient of Thrust sea level: 1.37.

Country
USA
Launch Vehicles
Atlas II, Atlas IIA, Atlas IIAS
Propellants
Lox/Kerosene