List of X-15 Flights : 1964
| Flight |
Date |
Pilot |
Country |
  |
Speed |
Altitude |
| X-15 Flight 98 |
January 8, 1964 |
Joseph Engle |
USA |
M |
5,818 kph |
42.642 km |
|
| X-15 Flight 99 |
January 16, 1964 |
Milton Thompson |
USA |
M |
5,216 kph |
21.641 km |
|
| X-15 Flight 100 |
January 28, 1964 |
Robert Rushworth |
USA |
M |
5,821 kph |
32.736 km |
|
| X-15 Flight 101 |
February 19, 1964 |
Milton Thompson |
USA |
M |
5,662 kph |
23.957 km |
|
| X-15 Flight 102 |
March 13, 1964 |
John McKay |
USA |
M |
5,458 kph |
23.165 km |
|
| X-15 Flight 103 |
March 27, 1964 |
Robert Rushworth |
USA |
M |
6,158 kph |
30.937 km |
|
| X-15 Flight 104 |
April 8, 1964 |
Joseph Engle |
USA |
M |
5,580 kph |
53.34 km |
|
| X-15 Flight 105 |
April 29, 1964 |
Robert Rushworth |
USA |
M |
6,285 kph |
30.968 km |
|
| X-15 Flight 106 |
May 12, 1964 |
John McKay |
USA |
M |
4,962 kph |
22.189 km |
|
| X-15 Flight 107 |
May 19, 1964 |
Joseph Engle |
USA |
M |
5,262 kph |
59.68 km |
|
| X-15 Flight 108 |
May 21, 1964 |
Milton Thompson |
USA |
M |
3,001 kph |
19.568 km |
|
| X-15 Flight 109 |
June 25, 1964 |
Robert Rushworth |
USA |
M |
4,994 kph |
25.39 km |
|
| X-15 Flight 110 |
June 30, 1964 |
John McKay |
USA |
M |
5,364 kph |
30.358 km |
|
| X-15 Flight 111 |
July 8, 1964 |
Joseph Engle |
USA |
M |
5,664 kph |
51.938 km |
|
| X-15 Flight 112 |
July 29, 1964 |
Joseph Engle |
USA |
M |
5,250 kph |
23.774 km |
|
| X-15 Flight 113 |
August 12, 1964 |
Milton Thompson |
USA |
M |
5,688 kph |
24.75 km |
|
| X-15 Flight 114 |
August 14, 1964 |
Robert Rushworth |
USA |
M |
5,776 kph |
31.486 km |
|
| X-15 Flight 115 |
August 26, 1964 |
John McKay |
USA |
M |
6,216 kph |
27.737 km |
|
| X-15 Flight 116 |
September 3, 1964 |
Milton Thompson |
USA |
M |
5,817 kph |
23.957 km |
|
| X-15 Flight 117 |
September 28, 1964 |
Joseph Engle |
USA |
M |
6,256 kph |
29.566 km |
|
| X-15 Flight 118 |
September 29, 1964 |
Robert Rushworth |
USA |
M |
5,699 kph |
29.809 km |
|
| X-15 Flight 119 |
October 15, 1964 |
John McKay |
USA |
M |
4,904 kph |
25.878 km |
|
| X-15 Flight 120 |
October 30, 1964 |
Milton Thompson |
USA |
M |
5,009 kph |
25.786 km |
|
| X-15 Flight 121 |
November 30, 1964 |
John McKay |
USA |
M |
4,970 kph |
26.579 km |
|
| X-15 Flight 122 |
December 9, 1964 |
Milton Thompson |
USA |
M |
5,990 kph |
28.164 km |
|
| X-15 Flight 123 |
December 10, 1964 |
Joseph Engle |
USA |
M |
5,913 kph |
34.503 km |
|
| X-15 Flight 124 |
December 22, 1964 |
Robert Rushworth |
USA |
M |
5,781 kph |
24.75 km |
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Updated - October 12, 2006