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Science Forum Index » Space - Shuttle Forum » ISS components mated together?
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| Derek Lyons |
 Posted: Wed Mar 12, 2008 7:15 pm |
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Guest
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Bash <bja3wo@hotmail.com> wrote:
Quote:
Easier just to make sure that it reenters in the Pacific Ocean.
Jeff
True. I was thinking of whether there would be some uncertainty with
regards to the drag in the outer atmosphere with respect to the solar
maximum around 2022, and the fact is may be better to break the
station up into smaller pieces. Seriously, has it been decided yet how
to deorbit the station at the end of it's life?
There's be a lot of thought about it, but few decisions and no real
action. There used to be a NASA PDF floating around about it, but the
last time I looked it was 404ed.
ISTR one of the key issues they are trying Very Hard to not think
about is that proper targeting requires control down to x kilometers,
but aerodynamic forces overwhelm any plausible control mechanism at
about 1.2x kilometers. (Control forces are limited by the strength of
the intermodule connections IIRC.)
The real problem with the FAE-at-entry-interface idea is that while it
does break up modules - the trusses, tankage, and heavier bits (CMG,
CBM, APAS) are likely to survive and be well (and unpredictably)
scattered.
D.
--
Touch-twice life. Eat. Drink. Laugh.
http://derekl1963.livejournal.com/
-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL |
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