USA
David Walker
(David Mathieson Walker)
(May 20, 1944 - Apr 23, 2001)
Astronaut 154
Astronaut of the USA 83
Spaceflights 4
Spaceflights
| No. | Launch | Orbiter | Duration |
| 1st | Nov 08, 1984 | Discovery STS-51A | 7 d 23 h 44 m 56 s (191 h 44 m 56 s) |
| 2nd | May 04, 1989 | Atlantis STS-30 | 4 d 0 h 56 m 27 s (96 h 56 m 27 s) |
| 3rd | Dec 02, 1992 | Discovery STS-53 | 7 d 7 h 19 m 47 s (175 h 19 m 47 s) |
| 4th | Sep 07, 1995 | Endeavour STS-69 | 10 d 20 h 28 m 56 s (260 h 28 m 56 s) |
| Cumulative time: | 30 d 4 h 30 m 6 s (724 h 30 m 6 s) | ||
David Walker.
David Walker commander of the Space Shuttle.
Astronaut of the USA 82
Astronaut of the USA 84
Astronaut 153
Astronaut 155
2001 Antropos.