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Credit - Boeing / Rocketdyne
Engine Model: AEC. Manufacturer Name: RS-44. Designer: Rocketdyne. Developed in: 1981. Propellants: Lox/LH2. Thrust(vac): 66.695 kN (14,994 lbf). Isp: 481 sec. Country: USA.

Advanced Expander Cycle Engine. Expander regenerator, pump-fed.

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