| Spacewalks from Challenger on STS-6 | |||
|---|---|---|---|
| STS-6 Launch: | April 4, 1983 | STS-6 Landing: | April 9, 1983 |
| Spacewalkers: | Story Musgrave <> Donald Peterson | ||
| STS-6 Crew: | CDr Paul Weitz <> PLT Karol Bobko <> MS1 Story Musgrave <> MS2 Donald Peterson |
||
| STS-6 Spacewalk 1 | Musgrave and Peterson tested the Space Transportation System Extravehicular Mobility Unit (EMU) spacesuit and spacewalking equipment on the first spacewalk staged from a space shuttle. They demonstrated contingency payload bay closure without actually closing Challenger's payload bay doors. | ||
| April 7, 1983 | |||
| 4 hours 10 minutes | |||
| Spacewalks from Challenger on STS-41B | |||
|---|---|---|---|
| STS-41B Launch: | February 3, 1984 | STS-41B Landing: | February 11, 1984 |
| Spacewalkers: | Bruce McCandless <> Robert Stewart | ||
| STS-41B Crew: | CDR Vance Brand <> PLT Robert Gibson <> MS1 Bruce McCandless <> MS2 Ronald McNair <> MS3 Robert Stewart |
||
| STS-41B Spacewalk 1 | McCandless and Stewart tested the Manned Maneuvering Unit (MMU) and rehearsed for the upcoming Solar Max repair mission. McCandless flew the MMU as far out as 99 m (325 ft). Stewart flew MMU as far out as 93 m (306 ft) after testing the Trunnion Pin Attachment Device (TPAD). McCandless became the first astronaut to ride at the end of the robotic arm. | ||
| February 7, 1984 | |||
| 5 hours 55 minutes | |||
| STS-41B Spacewalk 2 | McCandless and Stewart continued testing the Manned Maneuvering Unit, and rehearsing for the upcoming Solar Max repair mission. A failure with the robotic arm's wrist joint prevented the planned deployment of a rotating Shuttle Pallet Satellite. McCandless and Stewart had to practice docking the TPAD with fixed targets instead of a rotating target. | ||
| February 8, 1984 | |||
| 6 hours 17 minutes | |||
| Spacewalks from Challenger on the Solar Max Repair Mission (STS-41C) | |||
|---|---|---|---|
| STS-41C Launch: | April 3, 1984 | STS-41C Landing: | April 13, 1984 |
| Spacewalkers: | James van Hoften <> George Nelson | ||
| STS-41C Crew: | CDR Robert Crippen <> PLT Francis Scobee <> MS1 Terry Hart <> MS2 James van Hoften <> MS3 George Nelson |
||
| STS-41C Spacewalk 1 | Nelson and van Hoften set out to retrieve the Solar Max satellite. An obstructing grommet on Solar Max which did not appear in its blueprints prevented Nelson from grappling the satellite with the Manned Maneuvering Unit (MMU) and Trunnion Pin Attachment Device (TPAD). An attempt by Nelson to stabilize the satellite by grabbing a solar array also failed. | ||
| April 8, 1984 | |||
| 2 hours 38 minutes | |||
| STS-41C Spacewalk 2 | Challenger's robotic arm grappled the Solar Max satellite, and placed it on its servicing table in the payload bay on April 10, 1984. Nelson and van Hoften replaced Solar Max' altitude control and main electronics box. Then Nelson photographed Solar Max from the robotic arm, and van Hoften took the MMU on a short trip in the payload bay. | ||
| April 11, 1984 | |||
| 6 hours 44 minutes | |||
| Spacewalks from Challenger on STS-41G | |||
|---|---|---|---|
| STS-41G Launch: | October 5, 1984 | STS-41G Landing: | October 13, 1984 |
| Spacewalkers: | Kathryn Sullivan <> David Leestma | ||
| STS-41G Crew: | CDR Robert Crippen <> PLT Jon McBride <> MS1 Sally Ride <> MS2 Kathryn Sullivan <> MS3 David Leestma <> PS1 Paul Scully-Power <> PS2 Marc Garneau (Canada) |
||
| STS-41G Spacewalk 1 | Sullivan and Leestma demonstrated the Orbital Refueling System for hydrazine fuel transfer. | ||
| October 11, 1984 | |||
| 3 hours 29 minutes | |||
| Spacewalks from Discovery on STS-51A | |||
|---|---|---|---|
| STS-51A Launch: | November 8, 1984 | STS-51A Landing: | November 16, 1984 |
| Spacewalkers: | Joseph Allen <> Dale Gardner | ||
| STS-51A Crew: | CDR Frederick Hauck <> PLT David Walker <> MS1 Joseph Allen <> MS2 Anna Fisher <> MS3 Dale Gardner |
||
| STS-51A Spacewalk 1 | Allen and Gardner retrieved the Palapa B-2 satellite. Allen used the Manned Maneuvering Unit (MMU) with the attached Apogee Kick Motor Capture Device (the stinger) to maneuver the satellite into Discovery's payload bay. Gardner, standing at the end of the robotic arm, helped guide the satellite by hand into the stowage frame. | ||
| November 12, 1984 | |||
| 6 hours 0 minutes | |||
| STS-51A Spacewalk 2 | Allen and Gardner retrieved the Westar VI satellite. Gardner used the MMU and the attached stinger to deliver the satellite into Discovery's payload bay. Allen held the satellite and rode the robotic arm for storage in the back of Discovery's payload bay. The MMU was retired after this spacewalk. | ||
| November 14, 1984 | |||
| 5 hours 42 minutes | |||
| Spacewalks from Discovery on STS-51D | |||
|---|---|---|---|
| STS-51D Launch: | April 12, 1985 | STS-51D Landing: | April 19, 1985 |
| Spacewalkers: | David Griggs <> Jeffrey Hoffman | ||
| STS-51D Crew: | CDR Karol Bobko <> PLT Donald Williams <> MS1 Margaret Rhea Seddon <> MS2 David Griggs <> MS3 Jeffrey Hoffman <> PS1 Senator E.J. "Jake" Garn <> PS2 Charles Walker |
||
| STS-51D Spacewalk 1 | Griggs and Hoffman performed the first unscheduled spacewalk to install improvised switch-pulling appendages on the robotic arm. The Hughes Syncom IV/Leasat 3 satellite remained inert after deployment on April 13, 1985 due to a faulty switch on the satellite's side. However, the switch-pullers did not activate Syncom VI/Leasat-3. | ||
| April 16, 1985 | |||
| 3 hours 6 minutes | |||
| Spacewalks from Discovery on STS-51I | |||
|---|---|---|---|
| STS-51I Launch: | August 27, 1985 | STS-51I Landing: | September 3, 1985 |
| Spacewalkers: | James van Hoften <> William Fisher | ||
| STS-51I Crew: | CDR Joseph Engle <> PLT Richard Covey <> MS1 James van Hoften <> MS2 John Michael Lounge <> MS3 William Fisher |
||
| STS-51I Spacewalk 1 | Fisher and van Hoften retrieved the Syncom IV/Leasat 3 and began repair work. They safed the satellite using plugs and specialized tools, and installed a cable harness to bypass the faulty switch. Blown fuses on the robotic arm caused the spacewalk to be spilt into two, and the satellite was left safed at the end of the robotic arm. | ||
| August 31, 1985 | |||
| 7 hours 20 minutes | |||
| STS-51I Spacewalk 2 | Fisher and van Hoften completed repair of the Syncom IV/Leasat 3 satellite by installing an instrument cover over the apogee kick motor nozzle and arming the motor. They spun the satellite up to 3 rpm by hand and released Syncom IV/Leasat 3. The satellite reached geosynchronous orbit after warming-up in low-Earth orbit for several months. | ||
| September 1, 1985 | |||
| 4 hours 26 minutes | |||
| Spacewalks from Atlantis on STS-61B | |||
|---|---|---|---|
| STS-61B Launch: | November 26, 1985 | STS-61B Landing: | December 3, 1985 |
| Spacewalkers: | Sherwood Spring <> Jerry Ross | ||
| STS-61B Crew: | CDR Brewster Shaw <> PLT Bryan O'Connor <> MS1 Sherwood Spring <> MS2 Mary Cleave <> MS3 Jerry Ross <> PS1 Charles Walker <> PS2 Rodolfo Neri-Vela (Mexico) |
||
| STS-61B Spacewalk 1 | Ross and Spring assembled two experimental erectable truss structures - the Assembly Concept for Construction of Erectable Space Structures (ACCESS) and Experimental Assembly of Structures through Extravehicular Activity (EASE) experiments. This spacewalk focused on human performance. | ||
| November 29, 1985 | |||
| 5 hours 32 minutes | |||
| STS-61B Spacewalk 2 | Ross and Spring reassembled the ACCESS and EASE experiments for mass-object handling and construction work using the robotic arm. ACCESS was easier to move with the robotic arm than EASE. | ||
| December 1, 1985 | |||
| 6 hours 41 minutes | |||
| Key | |
|---|---|
| CDR | Commander |
| PLT | Pilot |
| MS | Mission Specialist |
| PS | Payload Specialist |
Return to the Index of Spacewalks by Manned Space Program
Updated - January 12, 2007