Viking 5C Designer: SEP. Propellants: N2O4/UDMH. Thrust(vac): 752.000 kN (169,056 lbf). Thrust(sl): 670.800 kN (150,802 lbf). Isp: 278 sec. Isp (sea level): 248 sec. Burn time: 142 sec. Mass Engine: 776 kg (1,710 lb). Diameter: 2.22 m (7.28 ft). Length: 2.87 m (9.41 ft). Chambers: 1. Chamber Pressure: 55.00 bar. Area Ratio: 11.00. Oxidizer to Fuel Ratio: 1.70. Thrust to Weight Ratio: 92.84. Country: France. First Flight: 1988. Last Flight: 2003. Flown: 238. Viking 5C used on Rocket Stages Used on stage: Ariane 4L. on launch vehicle: Ariane 42L. Used on stage: Ariane 4L. on launch vehicle: Ariane 44L. Used on stage: Ariane 4L. on launch vehicle: Ariane 44LP. Bibliography and Further Reading Kudryavtseva, V M, ed., Zhidkostnikh Raketnikh Dvigatley, Visshaya Shkola, Moscow, 1993. ISBN: 5060025632. Russian-language textbook on rocket theory. More at amazon.com...                   Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2007 except where otherwise noted.

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