Re: Space station future adrift (Soyuz purchase crisis)

From: Joann Evans (bondage_at_frontiernet.net)
Date: 12/01/04 

Date: Wed, 01 Dec 2004 00:21:22 GMT

Derek Lyons wrote:
>
> henry@spsystems.net (Henry Spencer) wrote:
> >A friend has pointed out, in private mail, that you could do this with a
> >two-step emergency setup: an emergency refuge, which would provide life
> >support for a while and give time for prebreathing procedures, and then
> >a spacesuit-dependent bailout system.
> >
> >While that's feasible, my gut feeling is that you're still better off with
> >a non-spacesuit lifeboat. And it does not strike me as substantially
> >harder to do, not when you deal with all the details.
>
> It's also possible to design an emergency escape suit *that doesn't
> require prebreathing*. Get in it, seal it, and pop out the airlock.
> Prebreathe while dropping the pressure down to a level where you can
> move the suit, complete the remainder of the escape sequence.

   There's been a fair amount of work on 8 psi,'zero pre-breathe' suits
for normal operations for some time. A 'rescue' suit might be able to
relax some of the range of movement and flexibility issues an 'everyday'
suit must address. 

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