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RS-77
Credit - Boeing / Rocketdyne
Engine Model: RS-77. Manufacturer Name: RS-77. Designer: Rocketdyne. Developed in: 1999. Propellants: Solar/LH2. Thrust(vac): 176 N (39 lbf). Isp: 870 sec. Country: USA.

Solar Thermal Engine. Pressure-fed. SOTV Solar Orbit Transver Vehicle.

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