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#71
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Fred J. McCall wrote:
I remember original Shuttle promises of prices in the range of $100/lb to orbit. Then they started compromising. Even without compromises it wouldn't have reached $100/lb, or anywhere close to that. The whole idea was just junk, which is why NASA is not being tasked with developing a replacement. Paul |
#72
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"Fred J. McCall" wrote:
:Uh, no, practically none of the new launch systems which were actually :*carried through to operational status* made any such promise. (The :EELVs made far less ambitious promises of very modest cost reductions.) :"You can't win if you don't play." Well, not by the time they actually built operational hardware they didn't. However, one of the big reasons why Shuttle got built was the original contention that it would be orders of magnitude cheaper. That was before the compromises started and we got the current system, of course. Reading Jenkins, I'm not convinced that an 'uncompromised' design would have resulted in launch costs being any cheaper. The 'uncompromised' designs involved building something larger than a 747 that could perform in the subsonic, transonic, and hypersonic regimes, a tall order indeed. (Disregarding for the moment the reality of engineering - all designs are compromises.) It seems to me that this is a 'chicken and egg' sort of problem. Payloads are expensive because launchers are expensive and if you're going to spend that kind of money to get your payload up, that payload better be engineered to death to maximize life span and such. That's utter bull****. Launchers stay expensive because nobody wants to put their expensive payload up on a cheap rocket for fear that the rocket will fail. So the rockets don't get changed much, either. Launchers are expensive because there is virtually zero economic incentive to make them less expensive. The mammals are staking their future on the speculative belief that if they build it, payloads will come. In other words, when taxpayer pockets are available price of the payload is no object? This philosophy is what has hurt planetary science so badly, just by the way. The era of the 'giant probes' meant that there couldn't be very many of them in the pipeline because the budget for billion dollar probe programs just wasn't large enough to sustain that. However very little of the billion dollars was the result of high launch prices. Even if the launch were free, the probe still has to endure extreme environments for years or decades and still function with extreme reliability. The overwhelming majority of taxpayers like space exploration. What they don't like is PAYING for space exploration at the expense of something else. When it comes to ranking the budget, where does space exploration fall in the list? 99% percent of the taxpayers, and the same percentage of s.s.* posters wouldn't recognize space exploration if it bit them on the butt. They confuse the stunts NASA has contrived to date with exploring. (Hint: NASA has done very, very little exploring.) :Very few of the arctic expeditions promised any sort of economic return :at all. Private funding doesn't have to mean profit-making ventures ![]() :the billions, while non-profit private funding tends to top out in the :low hundreds of millions, last I heard). And that sort of private funding simply isn't available for 'speculative' things like space exploration. The real question - why was it available for Artic and African exploration, but not space exploration? D. -- Touch-twice life. Eat. Drink. Laugh. -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
#74
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On 2005-02-19, Fred J. McCall wrote:
: :Whether Russian launchers are actually underpriced is not clear. They :*are* inherently cheaper than Western designs, due to more automation on ![]() :disregard the small matter of lower wages. Is the 'more automation' claim really true? I find that rather hard to believe, given the general state of Russian manufacturing. I would think the price advantage was due to some small economies of scale (they do build more of them), lower wage costs, and a huge currency advantage when selling for hard currency. Remember that Russian launchers are essentially incrementally improved versions of old designs - and those old designs were *really* produced in mass. (As of 2000, there had been over 1,600 R-7 launches...) As I understand it - the factory facilities were designed for mass production, large numbers of them in parallel, so a lot of the capacity "lingered". Most changes were relatively minor - new upper stages, changed engines - whilst the bulk of the hardware remained the same, so the old production lines were still usable. Whilst there would be little reason to introduce such capital-intensive automation *today*, were you constructing the manufacturing facilities from scratch, it was a lot more sensible in the 1960s. Of course, the Atlas and Delta construction facilities are mostly new, and as such... -- -Andrew Gray |
#75
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On or about Sat, 19 Feb 2005 23:45:41 -0600, Kevin Willoughby made the sensational claim that:
Admittedly a lot of NASA current budget goes into ISS/Shuttle, which does very little if any exploring beyond what was done with Skylab and MIR. Only about a third. -- This is a siggy | To E-mail, do note | Just because something It's properly formatted | who you mean to reply-to | is possible, doesn't No person, none, care | and it will reach me | mean it can happen |
#76
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On or about Sat, 19 Feb 2005 19:05:48 -0600, Derek Lyons made the sensational claim that:
99% percent of the taxpayers, and the same percentage of s.s.* posters wouldn't recognize space exploration if it bit them on the butt. They confuse the stunts NASA has contrived to date with exploring. (Hint: NASA has done very, very little exploring.) What sort of bizarro world definition of "exploration" do you subscribe to? This smells like "let's define 'exploration' as something NASA doesn't do, because this is how I think it should be" NASA bashing horse**** to me. "Stunt" and "Exploration" are not mutually exclusive. -- This is a siggy | To E-mail, do note | Just because something It's properly formatted | who you mean to reply-to | is possible, doesn't No person, none, care | and it will reach me | mean it can happen |
#77
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#78
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"Paul F. Dietz" wrote:
:Fred J. McCall wrote: : : I remember original Shuttle promises of prices in the range of $100/lb : to orbit. Then they started compromising. : :Even without compromises it wouldn't have reached $100/lb, or anywhere :close to that. The whole idea was just junk, which is why NASA is not :being tasked with developing a replacement. Oh, I don't think it would have, either. That is what was being promised, though, and it would have come a lot closer if they hadn't knowingly opted for a design that required huge maintenance and operating costs in order to try to keep the initial capital costs down. -- "Millions for defense, but not one cent for tribute." -- Charles Pinckney |
#79
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"Fred J. McCall" wrote:
"Paul F. Dietz" wrote: :Fred J. McCall wrote: : I remember original Shuttle promises of prices in the range of $100/lb : to orbit. Then they started compromising. : :Even without compromises it wouldn't have reached $100/lb, or anywhere :close to that. The whole idea was just junk, which is why NASA is not :being tasked with developing a replacement. Oh, I don't think it would have, either. That is what was being promised, though, and it would have come a lot closer if they hadn't knowingly opted for a design that required huge maintenance and operating costs in order to try to keep the initial capital costs down. It's highly unlikely it would have come down much even with one of the original designs - which would have shared many of the same maintenance and operating costs, and would have been even more more expensive to research, develop, and build. D. -- Touch-twice life. Eat. Drink. Laugh. -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
#80
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Derek Lyons wrote:
It's highly unlikely it would have come down much even with one of the original designs - which would have shared many of the same maintenance and operating costs, and would have been even more more expensive to research, develop, and build. What's more, if the development cost had been much higher, NASA could not have maintained even the pretense that the shuttle would have had a positive return on investment, even if it *had* reduced launch costs. The required flight rate to 'earn back' the development cost would have been too obviously beyond what future congresses would have funded. Paul |
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