X-15A-3 (original) (raw)

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X-15A-3

Part of X-15A

X-15/B-70

American manned spaceplane. Cancelled 1962. It had been proposed that X-15 number 3 would be reworked to install a delta wing and designed to reach Mach 8.

Status: Cancelled 1962. Thrust: 262.45 kN (59,000 lbf). Gross mass: 25,000 kg (55,000 lb). Unfuelled mass: 5,000 kg (11,000 lb). Specific impulse: 276 s. Height: 19.05 m (62.49 ft). Span: 6.80 m (22.30 ft).

The wing's leading edge would be of columbium, with Rene-41 alloy on the upper and lower surfaces. The rocketplane could have been air-launched from the top of an XB-70, but even when dropped from a subsonic B-52 would be capable of reaching Mach 8. The project was cancelled when X-15 number 3 was destroyed in a crash.

Spacecraft delta v: 2,400 m/s (7,800 ft/sec).

Family: Spaceplane, Suborbital, US Rocketplanes. Country: USA. Engines: XLR99. Propellants: Lox/Ammonia. Agency: USAF, North American. Bibliography: 44, 7028.

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