Subject:
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Re: Wings [was: Re: Building big]
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Newsgroups:
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lugnet.space
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Date:
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Fri, 22 Jun 2001 02:05:35 GMT
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Viewed:
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7320 times
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In lugnet.space, Kyle D. Jackson writes:
> In lugnet.space, Jesse Alan Long writes:
> > notably our space program, all over the world. These same companies are
> > working with contractors to develop newer types of engines such as an ion
> > propulsion system for the future replacements of the space shuttle, of which
> > some people may say that they may be in production and used in outer space
> > as early as the year 2003.
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> Ion drives will not be in use in 2003. The only form of space engines
> that are currently in production are rockets.
Are you sure about this? I believe there are ion drives in use on some
research sats already. They are extremely low thrust mercury based but have,
again, been shown to work for stationkeeping, unless my memory is completely
fried.
I want to say Clementine had them but I can't remember.
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Message has 1 Reply:
 | | Re: Wings [was: Re: Building big]
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| (...) Deep Space One, among others, but that was of course only the testbed in 1999-2000. Isn't the service life only about six months on the units being sent up now? (I know one has run longer, but the expected life is only about 150-180 days.) (...) (23 years ago, 22-Jun-01, to lugnet.space)
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Message is in Reply To:
| | Re: Wings [was: Re: Building big]
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| (...) Ion drives will not be in use in 2003. The only form of space engines that are currently in production are rockets. There are liquid-fuelled rockets, which can be turned on and off ("throttled"), and there are solid-fuel rockets which cannot (...) (23 years ago, 22-Jun-01, to lugnet.space, lugnet.loc.au)
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