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- Newsgroups: sci.space
- Path: sparky!uunet!wupost!zaphod.mps.ohio-state.edu!rpi!uwm.edu!ux1.cso.uiuc.edu!news.cso.uiuc.edu!uxa.cso.uiuc.edu!jbh55289
- From: jbh55289@uxa.cso.uiuc.edu (Josh 'K' Hopkins)
- Subject: Return of payloads from Freedom
- References: <Bt4yxu.C0.1@cs.cmu.edu>
- Message-ID: <BtAExF.DtG@news.cso.uiuc.edu>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Distribution: sci
- Date: Thu, 20 Aug 1992 14:58:25 GMT
- Lines: 35
-
- amon@elegabalus.cs.qub.ac.uk writes:
-
- >> Allan you have still not addressed with numbers the propostion that
- >the
- >> Shuttle will become MORE useful as the return of large payloads
- >grows more
- >> common in the SSF era.
- >>
-
- >WHAT large payloads? There ARE no large payloads until we actually GO
- >somewhere. There is nothing in LEO to bring back. And if we do have
-
- On the contrary, as currently designed, Freedom requires the return
- of materials on a regular basis. The engines are designed in 6 (?) modules
- that require refueling on Earth. Current plans have them being rotated out
- on a regular baisis. Since these are almost certainly too large to return in
- a Soyuz, you're going to need to redesign them (previously they would have been
- H2-LOX run off waste water but that was expensive), or add a vehicle that
- can return moderate size payloads. Or maybe this was covered and I just missed
- it.
-
- >The shuttle has already lived a longer time than most of the really
- >early cargo aircraft (ie pre-Ford Trimotor and DC-3). It will have an
- >honored place at NASM and will probably be sitting there before 2005.
-
- Well, just to pick nits, NASM already has a shuttle and DC-3s are still
- flying. One has the equivalent of something like 6 million miles on it. Pre-
- DC-3 craft probably weren't popular for long, but I bet there were some that
- flew for 15 years.
-
-
- --
- Josh Hopkins j-hopkins@uiuc.edu, or jbh55289@uxa.cso.uiuc.edu
-
- "A goal is a dream taken seriously." -Uncle Walt.
-