Author
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Topic: Mission commanders' scheduled spacewalks
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Duke Of URL Member Posts: 1316 From: Syracuse, NY Registered: Jan 2005
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posted 10-19-2009 10:40 PM
Has the Commander of an Earth-orbit mission ever had a scheduled EVA? |
Mike Dixon Member Posts: 1397 From: Kew, Victoria, Australia Registered: May 2003
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posted 10-19-2009 11:17 PM
Yep... Conrad / Bean / Carr on the Skylabs. |
webhamster Member Posts: 106 From: Ottawa, Canada Registered: Jul 2008
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posted 10-23-2009 11:25 PM
Those are the only ones I could think of too. However, I do recall reading that John Young trained to be the "emergency" spacewalker on STS-9 along with Parker if one had been required (say to close the doors or something) due to his prior EVA experience. |
OV-105 Member Posts: 816 From: Ridgecrest, CA Registered: Sep 2000
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posted 10-24-2009 12:21 AM
Culbertson and Bowersox got to do EVA's on their ISS flights. |
Lou Chinal Member Posts: 1306 From: Staten Island, NY Registered: Jun 2007
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posted 10-24-2009 09:25 AM
Why didn't McDivtt do an EVA on Apollo 9? Was it ever considered? Were two PLSS carried in the LM on that flight? |
Duke Of URL Member Posts: 1316 From: Syracuse, NY Registered: Jan 2005
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posted 10-24-2009 09:47 AM
I don't think one was scheduled for safety reasons. Scott did a planned "stand-up" while RS was out of the LM but (I believe) that was the only 2-man space walk before Skylab. |
Blackarrow Member Posts: 3120 From: Belfast, United Kingdom Registered: Feb 2002
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posted 10-24-2009 11:29 AM
No, Yeliseyev and Khrunov did an EVA transfer from Soyuz 5 to Soyuz 4 in January, 1969. At the time, Soyuz did not have an internal transfer tunnel. |
Delta7 Member Posts: 1505 From: Bluffton IN USA Registered: Oct 2007
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posted 10-24-2009 12:24 PM
quote: Originally posted by Lou Chinal: Why didn't McDivtt do an EVA on Apollo 9? Was it ever considered? Were two PLSS carried in the LM on that flight?
I believe that an emergency EVA transfer from the LM to the CSM was a contingency for all flights with the LM (in case re-docking wasn't possible). In fact, that is what Schweickart was supposed to demonstrate on Apollo 9 before his motion sickness resulted in a curtailment of the EVA. As such, I presume there was at least part of a PLSS for McDivitt (not the full lunar gear, but the upper smaller portion of the PLSS) in case of such a necessity. |
John Charles Member Posts: 339 From: Houston, Texas, USA Registered: Jun 2004
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posted 10-24-2009 06:31 PM
quote: Originally posted by Delta7: ...I presume there was at least part of a PLSS for McDivitt (not the full lunar gear, but the upper smaller portion of the PLSS) in case of such a necessity.
Both LMP Schweickart and CDR McDivitt would have used the oxygen purge system (OPS)--the small upper component atop the PLSS--to provide them with 30 minutes of oxygen for such an emergency transfer from LM to CM. I have recently seen old footage of each of them training in the Manned Spacecraft Center's Water Immersion Facility (WIF) for such an eventuality in the weeks before their Apollo 9 flight. ------------------ John Charles Houston, Texas |
John Charles Member Posts: 339 From: Houston, Texas, USA Registered: Jun 2004
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posted 10-24-2009 07:05 PM
quote: Originally posted by webhamster: ...I do recall reading that John Young trained to be the "emergency" spacewalker on STS-9 along with Parker if one had been required (say to close the doors or something) due to his prior EVA experience.
I had always thought CDR Young was also designated for any STS-1 contingency EVA, such as to close the payload bay doors. But checking the STS 1-5 mission reports published by Apogee Books and Robert Godwin, I see it was PLT Crippen who was the prime EVA crewmember on STS-1, and apparently PLT Fullerton on STS-3--not their Apollo/Skylab EVA-experienced CDRs Young, Lousma and Mattingly, and Apollo EVA-trained Engle. Funny I had that wrong for the last 3 decades! ------------------ John Charles Houston, Texas |
Lou Chinal Member Posts: 1306 From: Staten Island, NY Registered: Jun 2007
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posted 10-24-2009 09:08 PM
Yes, of course the Oxygen Purge System! I should have known that.Was the hatch in the tunnel open or closed during the EVA? Would it matter? Both the CM and the LM were depressurized. |