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  Apollo Lunar Module hatch during moonwalks

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Author Topic:   Apollo Lunar Module hatch during moonwalks
Max Q

Posts: 381
From: Whyalla South Australia
Registered: Mar 2007

posted 08-15-2012 07:58 AM     Click Here to See the Profile for Max Q   Click Here to Email Max Q     Edit/Delete Message   Reply w/Quote
I am reading Buzz Aldrin's "Magnificent Desolation." He makes mention that his cuff check list reminds him to pull the Lunar Module door part way closed. He also mentions that he didn't know why.

I was hoping somebody here could shed some light on why it would matter if the door was left fully open.

Fra Mauro

Posts: 1017
From: Maspeth, NY
Registered: Jul 2002

posted 08-15-2012 09:07 AM     Click Here to See the Profile for Fra Mauro   Click Here to Email Fra Mauro     Edit/Delete Message   Reply w/Quote
My only guess is that they thought it would have less stress on the hinges.

Robert Pearlman

Posts: 27328
From: Houston, TX
Registered: Nov 1999

posted 08-15-2012 09:20 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
Eric Jones, editor of the Apollo Lunar Surface Journal, offers this:
The hatch can be opened from the outside, if necessary. The reason for almost closing the hatch is, I believe, to prevent radiative cooling of the cabin. Neither Neil or Buzz remembered any specific reason.


Posts: 2024
From: Belfast, United Kingdom
Registered: Feb 2002

posted 08-15-2012 11:41 AM     Click Here to See the Profile for Blackarrow     Edit/Delete Message   Reply w/Quote
At some point, when asked this, Neil Armstrong responded along the lines that you shouldn't leave doors or gates (or hatches) open because someone would ask: "Were you born in a field?".


Posts: 374
From: Lansing, MI, USA
Registered: Mar 2012

posted 08-15-2012 01:06 PM     Click Here to See the Profile for Gonzo   Click Here to Email Gonzo     Edit/Delete Message   Reply w/Quote
But then again, it's not like anyone ELSE would invite themselves in!

Radiative cooling makes the most sense. Either that or to help keep any kicked up dust out.

All times are CT (US)

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