Re: More info on Constellation/CEV

From: Will McLean (mclean1382_at_aol.com)
Date: 01/27/05 

Date: 26 Jan 2005 16:21:20 -0800

Alex Terrell wrote:
> Whether an airlock is needed or not depends on function. If its to
> ferry astronauts to a station, then no airlock is needed. If
astronauts
> need to transfer to a lunar lander, then an airlock is needed, or the
> whole CEV is depressurised, as you say. In this case, provision needs
> to be made for "do not expose to vacuum" things, like milk bottles
and
> much more.
>
> I wonder why an airlock needs to weigh 3 tons. How about a fabric
> partition that seperates part of the CEV, which can then be evacuated
-
> mass ~50kg

Presumably, the ISS airlock has a lot of EVA associated equipment
stationed there.

You can get a Soyuz orbital module, that can serve as an airlock, for
1.3 tonnes.

Better yet, put a pressurized compartment on the ascent stage.
Will McLean

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  • Re: More info on Constellation/CEV
    ... Whether an airlock is needed or not depends on function. ... ferry astronauts to a station, ... whole CEV is depressurised, as you say. ... In this case, provision needs ...
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