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astronautix.com Helios A-1
Helios
Helios - Helios Launch Vehicle

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Gross Mass: 200,000 kg. Empty Mass: 10,000 kg. Thrust (vac): 680,000 kgf. Isp: 400 sec. Burn time: 110 sec. Propellants: Lox/LH2 Isp(sl): 340 sec. Diameter: 6.7 m. Span: 10.1 m. Length: 8.8 m. Country: USA. No Engines: 4. Helios Stage 1 Status: Study, Ehricke, 1960. Comments: Booster stage with Lox tanks only to take nuclear second stage to stratosphere. .
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Last update 12 March 2001.
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© Mark Wade, 2001 .