This page no longer updated from 31 October 2001. Latest version can be found at XB-70

Gross Mass: 226,758 kg. Empty Mass: 68,027 kg. Thrust (vac): 53,058 kgf. Isp: 2,084 sec. Burn time: 11,000 sec. Propellants: Air/Kerosene Isp(sl): 1,894 sec. Diameter: 9.1 m. Span: 32.0 m. Length: 56.4 m. Country: USA. No Engines: 6. J93-3 Status: Hardware. Comments: N. American Bomber-delta wing. Maximum release conditions: Piggy-back, 27,273 kg (19.1 m length x 6.7 m span) at 3,193 kph at 21,341 m altitude.
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Last update 12 March 2001.
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© Mark Wade, 2001 .