Vanguard

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Model: Vanguard. Gross Mass: 7,661 kg (16,889 lb). Empty Mass: 811 kg (1,787 lb). Thrust (vac): 134.792 kN (30,302 lbf). Isp: 270 sec. Burn time: 145 sec. Propellants: Lox/Kerosene. Isp(sl): 248 sec. Diameter: 1.14 m (3.74 ft). Span: 1.14 m (3.74 ft). Length: 12.20 m (40.00 ft). Country: USA. No Engines: 1. Motor: X-405. Status: Retired 1959. Cost $ : 4.000 million. First Flight: 1957. Last Flight: 1959. No Launched: 13. No Failed: 1. Used on Launch Vehicles: Vanguard. 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 - 2008 except where otherwise noted.