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Author Topic:   Mission commanders' scheduled spacewalks
Duke Of URL
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From: Syracuse, NY, USA
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posted 10-19-2009 10:40 PM     Click Here to See the Profile for Duke Of URL   Click Here to Email Duke Of URL     Edit/Delete Message   Reply w/Quote
Has the Commander of an Earth-orbit mission ever had a scheduled EVA?

Mike Dixon
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From: Kew, Victoria, Australia
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posted 10-19-2009 11:17 PM     Click Here to See the Profile for Mike Dixon   Click Here to Email Mike Dixon     Edit/Delete Message   Reply w/Quote
Yep... Conrad / Bean / Carr on the Skylabs.

webhamster
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posted 10-23-2009 11:25 PM     Click Here to See the Profile for webhamster   Click Here to Email webhamster     Edit/Delete Message   Reply w/Quote
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
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From: Ridgecrest, CA USA
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posted 10-24-2009 12:21 AM     Click Here to See the Profile for OV-105   Click Here to Email OV-105     Edit/Delete Message   Reply w/Quote
Culbertson and Bowersox got to do EVA's on their ISS flights.

Lou Chinal
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posted 10-24-2009 09:25 AM     Click Here to See the Profile for Lou Chinal   Click Here to Email Lou Chinal     Edit/Delete Message   Reply w/Quote
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
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posted 10-24-2009 09:47 AM     Click Here to See the Profile for Duke Of URL   Click Here to Email Duke Of URL     Edit/Delete Message   Reply w/Quote
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
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posted 10-24-2009 11:29 AM     Click Here to See the Profile for Blackarrow     Edit/Delete Message   Reply w/Quote
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
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From: Ossian IN USA
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posted 10-24-2009 12:24 PM     Click Here to See the Profile for Delta7   Click Here to Email Delta7     Edit/Delete Message   Reply w/Quote
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
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From: Houston, Texas, USA
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posted 10-24-2009 06:31 PM     Click Here to See the Profile for John Charles     Edit/Delete Message   Reply w/Quote
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.

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John Charles
Houston, Texas

John Charles
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From: Houston, Texas, USA
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posted 10-24-2009 07:05 PM     Click Here to See the Profile for John Charles     Edit/Delete Message   Reply w/Quote
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!

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John Charles
Houston, Texas

Lou Chinal
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posted 10-24-2009 09:08 PM     Click Here to See the Profile for Lou Chinal   Click Here to Email Lou Chinal     Edit/Delete Message   Reply w/Quote
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.

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