Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from hogtown.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl) (->ota+space.digests) ID ; Tue, 26 Feb 91 02:24:57 -0500 (EST) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Tue, 26 Feb 91 02:24:53 -0500 (EST) Subject: SPACE Digest V13 #207 SPACE Digest Volume 13 : Issue 207 Today's Topics: Re: Government vs. Commercial R&D Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription requests, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Date: 26 Feb 91 06:50:54 GMT From: zaphod.mps.ohio-state.edu!sdd.hp.com!cs.utexas.edu!news-server.csri.toronto.edu!utzoo!henry@tut.cis.ohio-state.edu (Henry Spencer) Subject: Re: Government vs. Commercial R&D In article <21234@crg5.UUCP> szabo@crg5.UUCP (Nick Szabo) writes: >>We badly need somebody doing what Marshall is supposed to do -- propulsion >>engineering -- and the same goes for several of the other centers. > >In an earlier post, you wrote that major launch costs reductions would be >be useful for bringing down the cost of space exploration. I agree. Observe >that Marshall et. al. have been researching chemical propulsion technology >since the 60's, without bringing about significant drop in costs... How can I observe something that hasn't been happening? With the exception of work directly related to the shuttle, Marshall has done *nothing* major in propulsion research since the early 1970s. Zero. Note what I said: "what Marshall is *supposed* to do". I stand by my statement: we badly need someone doing propulsion research. We're still using 1960s propulsion technology for everything, even things that would benefit enormously from better systems. Like a comet-rendezvous mission using hydrazine/N2O4... it's enough to make you ill. This will not change unless we have *somebody* doing such work *without* it being tied to specific missions. Specific missions rarely want new technology: they don't want to endanger their mission by being the first to depend on something new. We need the space-technology equivalent of the X-planes, pioneering new technology on a modest scale without trying to make it show a profit in the first prototype. If not Marshall, who? -- "But this *is* the simplified version | Henry Spencer @ U of Toronto Zoology for the general public." -S. Harris | henry@zoo.toronto.edu utzoo!henry ------------------------------ End of SPACE Digest V13 #207 *******************