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- Newsgroups: sci.space
- Path: sparky!uunet!gatech!rpi!clotho.acm.rpi.edu!strider
- From: strider@clotho.acm.rpi.edu (Greg Moore)
- Subject: Re: Pilots must be stupid? (Re: DC vs Shuttle capabilities
- Message-ID: <8gv2bqp@rpi.edu>
- Nntp-Posting-Host: acm.rpi.edu
- Organization: The Voice of Fate
- References: <ewright.725062372@convex.convex.com> <gjt2v-d@rpi.edu> <ewright.725130175@convex.convex.com>
- Date: Thu, 24 Dec 1992 04:06:28 GMT
- Lines: 82
-
- In article <ewright.725130175@convex.convex.com> ewright@convex.com (Edward V. Wright) writes:
- >In <gjt2v-d@rpi.edu> strider@clotho.acm.rpi.edu (Greg Moore) writes:
- >
- >>>You can walk from one place to another carrying a four-ton
- >>>cargo container? On Earth? I doubt it.
- >
- >> Carry it while walking? no, but I can drive it.
- >
- >If you have a flat tire?
- >
- I think I never made my original point clear enough, though
- Hnery did later elaborate on it. On earth you have friction and gravity
- that aid in controlling the movement of objects (granted, they also do
- create some problems).
-
- >See, for every "greater difficulty" you can think of in
- >space, I can think of one on Earth.
- >
- Gee, good for you.
-
- Now, since it has been made clear to me that a DC-1 will
- have a docking capability, (and as I already assumed, a RMS could
- and probably will be built) I withdraw my objections. But, if you
- wish to pick nits, go right ahead. I'm going on vacation.
-
- >
- >> Again, I think I see were we are differing. See my other
- >>post on timeframes. But to recap, I agree, after a couple thousand
- >>more hours of EVA time, we'll have a lot more down.
- >
- >If the cost of putting one man into space was $50,000, instead
- >of $5,000,000, you'd be able to rack up a thousand man-hours
- >of EVA time pretty fast.
- >
- And I don't argue with that. That's why I support DC-X.
- It's also why I support NASA's decision to increase the number of
- EVA's on upcoming flights. Granted, shuttle flights are expensive,
- but since they are the only manned access we have right now (until
- DC-1 or whatever comes on line), we might as well make use of it.
- It adds to the database of experience.
-
- >
- >>A diver can swim back. Or, with enough air (which they should
- >>always have) resurface.
- >
- >Not if they're SEALs in a combat zone. Or cave divers. Or
- >under ice. Or working in an underground sewer system. All
- >of which are done routinely today.
- >
- What can't be done? Swimming back? or planning on having
- enough air? I don't know a single cave diver who doesn't make sure
- she has a way out and enough air to get back (plus a healthy reserve).
- Besides, this is a nit pick. It does nothing to dispute my claim
- that an astronaut who "floats" away can have more serious problems.
-
- >
- >>>What makes you think a DC-1 can't accomplish a hard docking.
- >>>
- >> I wasn't aware that it could. This I understand would
- >>have to be an added capability? HOw does it dock? through the
- >>nose? or along the side?
- >
- >The McDAC illustration shows it docked alongside. I'm sure
- >the docking adapter would be an added capability, carried in
- >the cargo bay. Why carry it along on flights where you don't
- >need it?
- >
- Makes sense to me. Shuttle does that, so it would make
- even more sense for a cost-effective system like DC-1 to make
- every pound count.
-
- >If you consider this a problem, well, the Shuttle's docking
- >adapter works the same way.
- >
- I realize that. Actually, Shuttle's docking
- adapter WILL work taht way... they haven't docked to anything yet.
-
- >
- >
- >
-
-
-