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Home > Fact Sheets > Bell X-1B
BELL X-1B
Note: This aircraft is located in the Research & Development Gallery on a secure part of Wright-Patterson Air Force Base. Click here for visiting instructions.
The X-1B was one of a series of rocket-powered experimental research airplanes designed for investigation of various problems associated with supersonic flight. Specifically, the mission of the X-1B was flight research pertaining to aerodynamic heating and pilot reaction control systems. It made its first powered flight on Oct. 8, 1954.
On all test missions, the X-1B was carried to launching altitude, normally 25,000-35,000 feet, nestled under a "mother" airplane. It was then released in mid-air and rocket power was applied and, under full throttle, lasted less than five minutes. After all fuel (an alcohol-water mixture) and liquid oxygen had been consumed, the pilot glided the airplane to earth for a landing.
SPECIFICATIONS:
Span: 28 ft.
Length: 35 ft. 7 in.
Height: 10 ft. 8 in.
Weight: 16,590 lbs. loaded
Armament: None
Engine: Reaction Motors XLR-11-RM-6 four-chamber rocket engine of 6,000 lbs. thrust
Serial number: 48-1385
PERFORMANCE:
Maximum speed: 1,650 mph
Landing speed: 170 mph
Maximum altitude: 90,000 ft.
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