This page no longer updated from 31 October 2001.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

Gross Mass: 40,824 kg. Empty Mass: 4,000 kg. Thrust (vac): 130,000 kgf. Isp: 275 sec. Burn time: 94 sec. Propellants: Solid Isp(sl): 245 sec. Diameter: 1.6 m. Span: 1.0 m. Length: 17.7 m. Country: USA. No Engines: 1. Aerojet SRB Status: Development. Comments: New SRB boosters in development for Atlas V. Empty mass, vacuum thrust, sea level Isp estimated.
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Last update 12 March 2001.
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© Mark Wade, 2001 .