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- Newsgroups: sci.space
- Path: sparky!uunet!hela.iti.org!aws
- From: aws@iti.org (Allen W. Sherzer)
- Subject: Re: Stupid Shut Cost arguements (was Re: Terminal Velocity of DCX?
- Message-ID: <1992Dec23.132824.14131@iti.org>
- Organization: Evil Geniuses for a Better Tomorrow
- References: <71877@cup.portal.com> <1992Dec22.160715.28828@iti.org> <9gt204c@rpi.edu>
- Date: Wed, 23 Dec 1992 13:28:24 GMT
- Lines: 65
-
- In article <9gt204c@rpi.edu> strider@clotho.acm.rpi.edu (Greg Moore) writes:
-
- > I thought you said that McDac or SDIO was going to treat
- >development costs of DC-1 as sunk costs. Or is that just DC-X (in
- >which case, what exactly does that mean?).
-
- DCX and DCY are proof of concept vehicles which the government is paying
- for. Nither are operational vehicles. DC-1 will likely be a very different
- sort of craft altogether. It will incorporate lessons learned on DCY, it
- may have a much larger payload and be a larger vehicle. DC-1s delta v on
- orbit and crossrange will depend on market requirements. It will in effect
- be a whole new development effort.
-
- I would oppose having the government pay for the development of DC-1 but
- would encourage government purchase of DC launch services. My estimates
- indicate that DC-1 can pay its own development costs, build and operate
- vehicles and still offer major cost reductions over Shuttle and even over
- commercial expendables. It is the first launch vehicle which can make this
- claim.
-
- A small number of DC's could provide for the entire current launch market
- and still have excess capacity available at very small incrimental costs.
-
- >If this is teh case, than
- >you have to treat the shuttle development costs as sunk costs.
-
- I have no problem treating the research vehicles which supported
- Shuttle (like X-24) being treated as sunk costs but I don't think
- development costs should be. That simply makes commercial development
- that much harder.
-
- >As for amortization of the orbiter, the same rule applies to that
- >as any aircraft or spacecraft, including, DC-1. The more you
- >fly it, the less this matter.
-
- Correct. But Shuttle is now flying at or very near its maximum rate.
- A working DC (if it works) will have much higher flight rates and can
- thus amoritze over more flights.
-
- >Right now, if you stopped all flights,
- >you could argue this cost (excluding interest) is about $150 million
- >a flight. (10 flights/orbiter, $1.5 Billion per orbiter).
-
- You left out the $34 billion (in 86 $$) development costs which must
- be amortized.
-
- > As for interest based on the national debt, that's a slippery
- >one what I won't touch.
-
- It is still a cost. All projects must include the cost of money.
-
- >One question I have though, will you treat
- >any government financing for DC-X,Y the same way, i.e. consider
- >interested on national debt?)
-
- Even worse. I want DC-1 to be built with private funds which will need
- to pay even higher interest rates.
-
- Allen
-
- --
- +---------------------------------------------------------------------------+
- | Allen W. Sherzer | "A great man is one who does nothing but leaves |
- | aws@iti.org | nothing undone" |
- +----------------------122 DAYS TO FIRST FLIGHT OF DCX----------------------+
-