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astronautix.com Viking 4


Designer: SEP. Used on stages: Ariane 1-2, GSLV-2, PSLV-2. Used on launch vehicles: Ariane 1, GSLV, PSLV. Propellants: N2O4/UDMH Thrust(vac): 73,518 kgf. Thrust(vac): 721.00 kN. Isp: 296 sec. Isp (sea level): 200 sec. Burn time: 132 sec. Mass Engine: 850 kg. Diameter: 2.6 m. Length: 3.7 m. Chambers: 1. Chamber Pressure: 54.00 bar. Area Ratio: 31.00. Oxidizer to Fuel Ratio: 1.70. Thrust to Weight Ratio: 86.49. Country: France. Status: In Production. First Flight: 1979. Last Flight: 1997. Flown: 15. References: 225 .
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Last update 12 March 2001.
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