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Engine Model: LH2-80k. Propellants: Lox/LH2. Thrust(vac): 355.700 kN (79,965 lbf). Thrust(sl): 256.100 kN (57,574 lbf). Isp: 425 sec. Isp (sea level): 306 sec. Burn time: 656 sec. Mass Engine: 1,438 kg (3,170 lb). Chambers: 1. Chamber Pressure: 30.00 bar. Area Ratio: 28.00. Thrust to Weight Ratio: 25.22. Country: USA. Status: Study 1959.
LH2-80k used on Rocket Stages
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