EVAs
| Start Date/Time | Duration | End Time | Spacecraft | Crew | Remarks |
|---|---|---|---|---|---|
| 16 April | 3 hours 6 minutes |
STS-51-D Discovery |
Jeffrey A. Hoffman S. David Griggs |
Installed an improvised switch-pulling tool, called the Flyswatter, on the RMS robotic arm. The Flyswatter was used in an effort to push the sequencer start lever on the Leasat-3 in the proper position for deployment. This attempted repair was the first unplanned spacewalk in NASA history. | |
| 2 August 07:15 |
5 hours | 12:15 | Salyut 7 EO-4 | Vladimir Dzhanibekov Viktor Savinykh |
Installed a third pair of solar arrays on exterior of Salyut 7. |
| 31 August | 7 hours 20 minutes |
STS-51-I Discovery |
William Fisher James van Hoften |
Van Hoften rode the RMS to capture the Leasat 3 satellite and pulled it into payload bay. Fisher and Van Hoften secured and started repairs on the satellite in the payload bay. The retrieval was complicated by a malfunction of the RMS that made operation of the arm more complicated. | |
| 1 September | 4 hours 26 minutes |
STS-51-I Discovery |
William Fisher James van Hoften |
Completed repairs on the Leasat 3 satellite. Then Van Hoften, riding the RMS, heaved the satellite out of the payload bay, imparting the required spin needed to fire the perigee motor. | |
| 29 November | 5 hours 32 minutes |
STS-61-B Atlantis |
Jerry L. Ross Sherwood C. Spring |
Practiced construction techniques in the payload bay and assembled and disassembled the two experimental EASE/ACCESS structures. | |
| 1 December | 6 hours 41 minutes |
STS-61-B Atlantis |
Jerry L. Ross Sherwood C. Spring |
Conducted supplementary experiments on the EASE and ACCESS structures, including a test of the RMS to aid in the construction experiments. |
Read more about this topic: 1985 In Spaceflight