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question on Shenzhou 5

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Gene Cash - 12 Oct 2005 11:57 GMT
Space.com has a diagram, and it says the orbital module is "capable of
independent navigation"

Does this mean it can stay in orbit and function after the crew module
departs? If so, any particular benefit to that? Is this one of the
advances over Soyuz?

-gc

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Jeff Findley - 12 Oct 2005 20:56 GMT
> Space.com has a diagram, and it says the orbital module is "capable of
> independent navigation"
>
> Does this mean it can stay in orbit and function after the crew module
> departs? If so, any particular benefit to that? Is this one of the
> advances over Soyuz?

Yes, yes, and yes.

In the short term, it allows you to run automated experiments long after the
crew module departs.  In the long term, you can use those orbital modules as
the (at least partial) basis for a space station in LEO.  They could at
least be used as storage modules for a station.  You can later pack them
with trash and then undock them (and likely command them to reenter and burn
up).

Jeff
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Rick Jones - 12 Oct 2005 21:57 GMT
Isn't it Shenzhou 6?

> Space.com has a diagram, and it says the orbital module is "capable
> of independent navigation"

> Does this mean it can stay in orbit and function after the crew
> module departs?

I believe so.

> If so, any particular benefit to that?

Well, if the thing has docking connectors on both ends, Shenzhou 7
could bring another one up, and then Shenzhou 8 a third, and after
adding little to little, soon there could be a great pile, or a string
of pearls if you prefer.  Presto, a "space station." :) As a bonus,
the Chinese get practice in orbital rendezvous.

I've no idea how many one could expect to chain together before it
became unwieildy, but I suppose if Shenzhou N brought-up a "cross
peice" or something it could become more than just a long string.  And
there is the question of how long any one module can remain in orbit
independently I suppose among a myriad of other questions no doubt.

rick jones
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blade_pride - 13 Oct 2005 15:55 GMT
It's also possible they could be set-up to be used as tugboats, to
move or re-boost satellites. Or on the military side of things, they
could be put in staging orbits so if war broke out they could ram enemy
satellites.
Dr John Stockton - 13 Oct 2005 18:58 GMT
JRS:  In article <kNe3f.14418$%I6.4890@news.cpqcorp.net>, dated Wed, 12
Oct 2005 20:57:52, seen in news:sci.space.tech, Rick Jones
<rick.jones2@hp.com> posted :

>Well, if the thing has docking connectors on both ends, Shenzhou 7
>could bring another one up, and then Shenzhou 8 a third, and after
[quoted text clipped - 7 lines]
>there is the question of how long any one module can remain in orbit
>independently I suppose among a myriad of other questions no doubt.

If they're feeling clever, they point the docking connectors 18 degrees
off-axis.  Then, after launching ten, they have a ring.

If they're feeling really clever, they add a little twist.  Then they
can have a helix ... "Combined Operation", James White.

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