home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.space
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!ira.uka.de!sol.ctr.columbia.edu!eff!news.oc.com!convex!ewright
- From: ewright@convex.com (Edward V. Wright)
- Subject: Re: Let's be more specific (was: Stupid Shut Cost arguements)
- Sender: usenet@news.eng.convex.com (news access account)
- Message-ID: <ewright.726516760@convex.convex.com>
- Date: Fri, 8 Jan 1993 18:12:40 GMT
- References: <1992Dec28.172953.26161@ke4zv.uucp> <1992Dec28.202920.5932@iti.org> <1993Jan1.030602.21051@ke4zv.uucp> <1i2lnqINN50b@mirror.digex.com> <1993Jan7.072839.1460@ke4zv.uucp>
- Nntp-Posting-Host: bach.convex.com
- Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
- X-Disclaimer: This message was written by a user at CONVEX Computer
- Corp. The opinions expressed are those of the user and
- not necessarily those of CONVEX.
- Lines: 60
-
- In <1993Jan7.072839.1460@ke4zv.uucp> gary@ke4zv.uucp (Gary Coffman) writes:
-
- >I don't condemn DC for being a paper design. All new vehicles are paper
- >designs at some point. What I do condemn is the idea of giving up an
- >operational system in the *hope* that the paper vehicle will meet it's
- >promise on schedule and on budget. That would be like telling Delta to
- >quit flying all it's current aircraft today and laying off all it's
- >personnel today because there's going to be a cheaper aircraft available
- >in 5 or 10 years.
-
- If Delta used the tactics NASA does to crush its competition,
- the resulting anti-trust suit would force them to go out of
- business.
-
-
- >> Shuttle could have lower costs then NASA currently has,
- >> but it still needs a tremendous infrastructure. The OPF,
- >> the VAB, Tilting bay, the crawler/transporter. Launch towers.
-
- >Of course Shuttle *already* has this infrastructure, and it's paid
- >for whether Shuttle continues to use it or not.
-
- Not using that infrastructure for the Shuttle would allow you to use
- it for a rebuilt Saturn V, Russian-built Soyuz or Energia boosters,
- etc. There are alternatives.
-
-
- >Currently there aren't that many missions needing heavy lift, seven
- >people on orbit, remote manipulation, long duration experiments, or
- >payload return. Shuttle does it with less than 8 launches a year. DC
- >may put Atlas, Delta, Titan, and Pegasus out of business, but it doesn't
- >have the capacity to match Shuttle or a true HLV for the times they're
- >needed.
-
- Can you give an example of a mission that needs *all* of those
- things, on a single vehicle?
-
- Of course, the Shuttle does it with less than 8 missions a year,
- because at Shuttle prices, that's all anyone can afford.
-
-
- >Once we have Freedom in operation, even less need
- >will be found for Shuttle, and it can be phased out. But there will still
- >be missions where there's no viable substitute for heavy lift and only
- >the Russians still have an operational very heavy lift vehicle. It may
- >make sense just to contract with them,
-
- Why does this have to wait for Freedom? We could do that right now.
- In fact, we'd save money launching Freedom on Energia instead of Shuttle.
-
-
- >but I'd like to see the US
- >develop a new generation VHLV designed from the ground up to achieve
- >the lowest possible cost per pound. We've never tried to do that so
- >we don't know how cheaply it can be done.
-
- A new gneration VHLV designed to achieve the lowest possible cost
- per pound would be an SSTO, which you support as research vehicles
- only.
-
-