List of X-1A flights

X-1A pilots

Pilot	Agency	Flights	Aircraft
Jean Ziegler	Bell Aircraft	6	48-1384
Joseph Walker	NACA	2	48-1384
Arthur Murray	USAF	14	48-1384
Chuck Yeager	USAF	4	48-1384

X-1A flights

Vehicle Flight #	Date	Pilot	Aircraft	Agency	Velocity -Mach-	Altitude - m -	Comments
X-1A #1	February 14, 1953	Jean Ziegler	48-1384	Bell 1	?	?	Pilot familiarization. Fuel jettison test. Glide flight.
X-1A #2	February 14, 1953	Jean Ziegler	48-1384	Bell 2	?	?	Planned powered flight. Propellant system problems. Glide flight.
X-1A #3	February 21, 1953	Jean Ziegler	48-1384	Bell 3	?	?	First X1-A powered flight. False fire alarm.
X-1A #4	March 26, 1953	Jean Ziegler	48-1384	Bell 4	?	?	Aircraft fired all four cylinders.
X-1A #5	April 10, 1953	Jean Ziegler	48-1384	Bell 5	0.93	?	Pilot found low-frequency elevator buzz at mach 0.93.
X-1A #6	April 25, 1953	Jean Ziegler	48-1384	Bell 6	0.93	?	Pilot again found low-frequency elevator buzz at mach 0.93. Turbopump overspeeding caused powered flight abort.
X-1A #7	November 21, 1953	Chuck Yeager	48-1384	USAF 1	1.15	?	Familiarization flight.
X-1A #8	December 2, 1953	Chuck Yeager	48-1384	USAF 2	1.5	?	-
X-1A #9	December 8, 1953	Chuck Yeager	48-1384	USAF 3	1.9	18,300	First high-mach flight. Achieved mach 1.9 during slight climb.
X-1A #10	December 12, 1953	Chuck Yeager	48-1384	USAF 4	2.44	15,250	Encountered severe instability above mach 2.3. Inverted spin from apogee down to 7,624 m. Pilot recovered control.
X-1A #11	March 21, 1954	Arthur Murray	48-1384	USAF 5	?	?	Estimated flight date.
X-1A #12	April 4, 1954	Arthur Murray	48-1384	USAF 6	?	?	Estimated flight date.
X-1A #13	April 11, 1954	Arthur Murray	48-1384	USAF 7	?	?	Estimated flight date.
X-1A #14	April 25, 1954	Arthur Murray	48-1384	USAF 8	?	?	Estimated flight date.
X-1A #15	May 14, 1954	Arthur Murray	48-1384	USAF 9	?	?	Estimated flight date.
X-1A #16	May 28, 1954	Arthur Murray	48-1384	USAF 10	?	26,564	Attained unofficial world altitude record for that time.
X-1A #17	June 4, 1954	Arthur Murray	48-1384	USAF 11	1.97	27,374	Attained unofficial world altitude record. Encountered severe instability at mach 1.97. Tumbled out of control from apogee down to 20,130 m.
X-1A #18	June 18, 1954	Arthur Murray	48-1384	USAF 12	?	?	Estimated flight date.
X-1A #19	July 2, 1954	Arthur Murray	48-1384	USAF 13	?	?	Estimated flight date.
X-1A #20	July 16, 1954	Arthur Murray	48-1384	USAF 14	?	?	Estimated flight date.
X-1A #21	July 30, 1954	Arthur Murray	48-1384	USAF 15	?	?	Estimated flight date.
X-1A #22	August 8, 1954	Arthur Murray	48-1384	USAF 16	?	?	Estimated flight date.
X-1A #23	August 19, 1954	Arthur Murray	48-1384	USAF 17	?	?	Estimated flight date.
X-1A #24	August 26, 1954	Arthur Murray	48-1384	USAF 18	?	27,584	Last USAF flight. Turned over to NACA.
X-1A #25	July 20, 1955	Joseph Walker	48-1384	NACA 1	1.45	13,725	First NACA flight. Severe aileron buzz at mach 0.90 to 0.92.
X-1A #26	August 8, 1955	Joseph Walker	48-1384	NACA 2	?	?	Planned second NACA flight. X-1A suffered small in flight explosion. Pilot exited into B-29. X-1A jettisoned and destroyed.

See also

• Bell X-1
• Chuck Yeager
• Joseph Walker