X-1A pilots
{| class="wikitable"
! width="125" |Pilot
! width="100" |Agency
! width="50" |Flights
! width="175" |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
{| class="wikitable"
! width="65" |Vehicle<br>Flight #
! width="120" |Date
! width="125" |Pilot
! width="50" |Aircraft
! width="65" |Agency
! width="50" |Velocity<br>-Mach-
! width="50" |Altitude<br>- m -
! width="175" |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