LiHo problem yesterday

Craig wrote:

It seems the CO2 scrubber run out first, then why do they have
additional 30 minute O2 reserve tanks in the suits?

For one thing, different people have different breathing requirements.
And I would surmise that reserve O2 would also be there to provide
addition survival should there be a leak in the suit. And in the case of
a failed Co2 scrubber, yeah, you could vent and replace with fresh O2.
You woudl waste some O2 because it would be vented out, but in the end,
you would still lower the Co2 to O2 ratio and give additional minutes
for the crewmember to get back to airlock.

John Doe wrote:

For one thing, different people have different breathing requirements.

and added together....
http://www.chron.com/disp/story.mpl/space/6547991.html
....the CO2 scrubber on the American side goes down.

Sounds like Mars might be to hard for NASA to handle.

Craig wrote:

and added together....
http://www.chron.com/disp/story.mpl/space/6547991.html
...the CO2 scrubber on the American side goes down.

Sounds like Mars might be to hard for NASA to handle.

While much has been said about the problems of the russian Elektron,
there has been little coverage of the USA CO2 scrubber (CDRA if I
remember correctly).

I was surprised that they allowed the crtew to reach 6 before they had
the spare CDRA installed (coming with next shuttle if I remember correctly).

Since they were able to "fix" this from the ground, I assume that they
need to reset some faulty sensor to force the unit back in operation.

Mars is exactkly why the ISS is needed. It is the ISS that will get NASA
and partners to debug systems and get MTBF numbers on that equipment so
that a mars mission will be properly outfitted with tools and enough
spare parts to get those systems to operate to keep the crews alive
until return to earth.

I still am puzzled to find some people really believing it is possible
to do a "mars direct" with no assembly in LEO.

....to the Moon and Mars by 2020...
http://www.wired.com/images_blogs/wi...s-endeavor.jpg
....photographed on it's way to Mars and land a couple...

That would be cool...
Craig

John Doe wrote:

Mars is exactkly why the ISS is needed.

Craig beweerde :
..to the Moon and Mars by 2020...
http://www.wired.com/images_blogs/wi...s-endeavor.jpg
...photographed on it's way to Mars and land a couple...

That would be cool...
Craig

John Doe wrote:

Mars is exactkly why the ISS is needed.

I think this could be Atlantis too...

--
"Jumpin' without a parachute? Kinda dangerous, ain't it?" - Bugs Bunny

André, PE1PQX wrote:

Craig beweerde :
..to the Moon and Mars by 2020...
http://www.wired.com/images_blogs/wi...e/2009/07/iss-
endeavor.jpg
...photographed on it's way to Mars and land a couple...

That would be cool...
Craig

John Doe wrote:

Mars is exactkly why the ISS is needed.

I think this could be Atlantis too...

Yeah, the detail is amazing when backlite by the sun.

Seems the LiOH is the limiting factor on the Space Shuttle's reentry. The first
consumable to go dry at End of Mission + 2 day, or Sunday. It has enough O2
for 16 hours past running out of LiOH...
http://www.nasaspaceflight.com/2009/...cleared-entry/
....I wonder if they used Shuttle consumables at a larger rate because of the
Station Problems?

John Doe wrote:

Craig wrote:

and added together....
http://www.chron.com/disp/story.mpl/space/6547991.html
...the CO2 scrubber on the American side goes down.

Sounds like Mars might be to hard for NASA to handle.

While much has been said about the problems of the russian Elektron,
there has been little coverage of the USA CO2 scrubber (CDRA if I
remember correctly).

I was surprised that they allowed the crtew to reach 6 before they had
the spare CDRA installed (coming with next shuttle if I remember
correctly).

Since they were able to "fix" this from the ground, I assume that they
need to reset some faulty sensor to force the unit back in operation.

Mars is exactkly why the ISS is needed. It is the ISS that will get
NASA and partners to debug systems and get MTBF numbers on that
equipment so that a mars mission will be properly outfitted with tools
and enough spare parts to get those systems to operate to keep the
crews alive until return to earth.

I still am puzzled to find some people really believing it is possible
to do a "mars direct" with no assembly in LEO.