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Old May 2nd 17, 03:05 AM posted to sci.space.policy
Fred J. McCall[_3_]
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Default NASA Announces SLS/Orion Flight Slide

JF Mezei wrote:

On 2017-05-01 06:12, Jeff Findley wrote:

Also, EMUs aren't a good choice at all for exploring planetary surfaces.
From a recent Aviation Week article on the subject:


Since Orion isn't gonna land on a planet other than Earth, the only use
for a spacesuit would be for an EVA in 0g during the weekend road trip
around the moon (without landing there).


Wrong. Remember, we're talking about an eight day mission in a
spacecraft that has never flown crewed. If something goes wrong and
the environment in the capsule becomes 'shirt sleeve unfriendly',
you'd still kind of like to get your astronauts back. That means you
need a suit you can stuff them into that has a duration of days, not
hours.


Is Orion even designed to support EVAs? (think about all electronics
needing to be water cooled so they don't die when whole capsule is
drained of air so hatch can be opened.)


Of course it's designed to support EVAs. You think Orion electronics
would ever be air cooled? That's so cute! Water is also pretty
unlikely.


If NASA is stalling first manned flight with "suits not ready" excuse,
it seems to me it is a fabricated excuse and there is another reason for
the delay which NASA doesn't want to reveal.


It seems to me that you're an idiot and need someone to empty your
drool cup for you.


Is it possible that NASA knows that SLS will never be man-rated due to
vibration from SRBs, or having such large tanks


Is it possible that unicorns might run through the capsule and ****
magic dust all over everything?


when such suits are clearly not needed for that flight, there there is
something else to the need for the delay.


It's good that you aren't in charge of anything more sophisticated
than the french fry fryer. You want space suits in case something
goes wrong with the experimental vehicle that people have never flown
in before. What you want is something LIKE an ACES suit but with a
lot more duration. Oddly, that is precisely what NASA has in the
project schedule; something very like an ACES suit but with better
mobility (because you have to wear it for longer) and with closed loop
life support so that it lasts longer.

snip idiot speculation


--
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