HG-3-SL

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HG-3-SL

Part of J-2

Rocketdyne LOx/LH2 rocket engine. Study 1966. High-performance high-pressure chamber engine developed from the J-2, fitted with lower-expansion nozzle for sea level use on Saturn INT-17. Technology led to Space Shuttle Main Engines.

Status: Study 1966. Thrust: 1,387.00 kN (311,810 lbf). Specific impulse: 450 s. Specific impulse sea level: 360 s.

Thrust (sl): 1,107.100 kN (248,886 lbf). Thrust (sl): 112,900 kgf.

Country: USA. Launch Vehicles: Saturn INT-17. Propellants: Lox/LH2. Stages: Saturn II-INT-17.

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