Re: Windshield damage

William Leininger (whl@mcs.com)
Mon, 7 Oct 1996 12:54:08 -0500

At 7:42 AM +0200 10/7/96, Bjoern Gimle wrote (replying to Dave Mullenix):
>>Wow!  How do you replace a window in an orbiting spacecraft?  Does everybody
>>put on their space suits first so you can release the internal air pressure
>>
>Humorous comment, but I would assume the damage, like Columbia's,
>is only to the outer layer. So it should be possible to replace
>it from the outside.
>

This is merely a guess, but having looked at some of the images of Mir
taken during recent Shuttle missions, most of the windows seem to have a
hinged cover on the outside (and possibly on the inside, as well, for
safety reasons).  As the pressure differential is from the interior to the
exterior, you might be able to close the outside cover, and disassemble the
window from the inside, and install a replacement.  This assumes that the
windows were designed to be replaced, that there is some way to bleed air
into the space between the outside of the window and the exterior cover,
and that the outside cover was (and still is, after long exposure to vacuum
and sunlight) airtight.

Didn't they have to do something like this to an airlock door a year or so ago?

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