This page no longer updated from 31 October 2001. Latest version can be found at Delta 4H - 2

Gross Mass: 30,710 kg. Empty Mass: 3,490 kg. Thrust (vac): 11,222 kgf. Isp: 462 sec. Burn time: 1,125 sec. Propellants: Lox/LH2 Diameter: 2.4 m. Span: 5.0 m. Length: 12.0 m. Country: USA. No Engines: 1. RL-10B-2 Status: Development. Comments: Delta 4 second stage with hydrogen tank increased to 5.1 m diameter.
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Last update 12 March 2001.
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© Mark Wade, 2001 .