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  LM hatch during moonwalks: Open or closed?

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Author Topic:   LM hatch during moonwalks: Open or closed?
moorouge
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Posts: 2458
From: U.K.
Registered: Jul 2009

posted 05-28-2010 12:59 PM     Click Here to See the Profile for moorouge   Click Here to Email moorouge     Edit/Delete Message   Reply w/Quote
I've just been watching a short film about an astronaut who locked himself out of the lunar module (LM) by forgetting to bring the key with him.

It raises a question - when out on EVAs did the moonwalkers leave the hatch wide open or did they pull it shut?

Spacefest
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Posts: 1168
From: Tucson, AZ
Registered: Jan 2009

posted 05-28-2010 01:13 PM     Click Here to See the Profile for Spacefest   Click Here to Email Spacefest     Edit/Delete Message   Reply w/Quote
KEY!? ROFL! Afraid someone will steal it?

I believe that was a joking remark made by Armstrong to Aldrin as the descended from the "porch."

I'm sure the LM hatch was closed, but I don't see a reason for a lock.

mikej
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Posts: 481
From: Germantown, WI USA
Registered: Jan 2004

posted 05-28-2010 01:56 PM     Click Here to See the Profile for mikej   Click Here to Email mikej     Edit/Delete Message   Reply w/Quote
Actually Armstrong and Aldrin joked about this very topic during egress:
Aldrin: Okay. Now I want to back up and partially close the hatch. (Long Pause) Making sure not to lock it on my way out.

Armstrong: (Laughs) A particularly good thought.

The ALSJ goes on to say that the hatch can be opened from the outside.

Henk Boshuijer
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Posts: 451
From: Netherlands
Registered: May 2007

posted 05-28-2010 05:18 PM     Click Here to See the Profile for Henk Boshuijer   Click Here to Email Henk Boshuijer     Edit/Delete Message   Reply w/Quote
Aldrin also talks about this in his book "Magnificent Desolation".

Lou Chinal
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Posts: 1332
From: Staten Island, NY
Registered: Jun 2007

posted 05-28-2010 07:39 PM     Click Here to See the Profile for Lou Chinal   Click Here to Email Lou Chinal     Edit/Delete Message   Reply w/Quote
The hatch was partially closed for thermostability.

alanh_7
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Posts: 1252
From: Ajax, Ontario, Canada
Registered: Apr 2008

posted 05-28-2010 08:23 PM     Click Here to See the Profile for alanh_7   Click Here to Email alanh_7     Edit/Delete Message   Reply w/Quote
Photos taken by Pete Conrad of Alan Bean coming down the ladder show the hatch closed.

ilbasso
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Posts: 1522
From: Greensboro, NC USA
Registered: Feb 2006

posted 05-28-2010 11:40 PM     Click Here to See the Profile for ilbasso   Click Here to Email ilbasso     Edit/Delete Message   Reply w/Quote
There was a piece of foil that could be peeled off from the outside to reveal a handle in case the hatch accidentally locked.

moorouge
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Posts: 2458
From: U.K.
Registered: Jul 2009

posted 05-29-2010 04:36 AM     Click Here to See the Profile for moorouge   Click Here to Email moorouge     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by ilbasso:
There was a piece of foil that could be peeled off from the outside to reveal a handle in case the hatch accidentally locked.

What possible reason could they have for covering up a handle? Surely not to improve the aerodynamics!

Max Q
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Posts: 399
From: Whyalla South Australia
Registered: Mar 2007

posted 05-29-2010 05:08 AM     Click Here to See the Profile for Max Q   Click Here to Email Max Q     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by moorouge:
What possible reason could they have for covering up a handle? Surely not to improve the aerodynamics!

Thermodynamics maybe

uk spacefan
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Posts: 168
From: London
Registered: Jan 2007

posted 05-29-2010 06:27 AM     Click Here to See the Profile for uk spacefan   Click Here to Email uk spacefan     Edit/Delete Message   Reply w/Quote
I find it incredible that of all the things the astronauts had to check before a moonwalk, not forgetting to bring the key to the LEM was one of them!!

Was NASA really expecting little green men to wander into the LEM and blast off in it?

music_space
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Posts: 1179
From: Canada
Registered: Jul 2001

posted 05-30-2010 10:18 PM     Click Here to See the Profile for music_space   Click Here to Email music_space     Edit/Delete Message   Reply w/Quote
Here are two sources where you may find your answers:

Spacefest
Member

Posts: 1168
From: Tucson, AZ
Registered: Jan 2009

posted 05-30-2010 10:56 PM     Click Here to See the Profile for Spacefest   Click Here to Email Spacefest     Edit/Delete Message   Reply w/Quote
One Small Mistake... by Chris Butler

All times are CT (US)

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