This page no longer updated from 31 October 2001. Latest version can be found at Vanguard

Gross Mass: 7,661 kg. Empty Mass: 811 kg. Thrust (vac): 13,745 kgf. Isp: 270 sec. Burn time: 145 sec. Propellants: Lox/Kerosene Isp(sl): 248 sec. Diameter: 1.1 m. Span: 1.1 m. Length: 12.2 m. Country: USA. No Engines: 1. X-405 Status: Hardware.
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Last update 12 March 2001.
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© Mark Wade, 2001 .