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![]() "Jorge R. Frank" wrote in message ... On 08/01/2010 09:35 PM, Alan Erskine wrote: On 2/08/2010 11:44 AM, Matt Wiser wrote: The proof is in flying- and not just the single Falcon 9 test flight. They need to fly repeatedly to silence the skeptics, and I'm one of them. There's some folks out there who think Musk is some sort of god, but they need to realize that right now, there just isn't enough support in either the House or Senate to get what they want. The Senate bill is the best option that preserves a government launch vehicle to LEO and BEO, along with Orion, JIC these commercial providers fail to deliver on their promises-and that is the main concern of Congress that I got from watching the hearings on C-Span. They kept pressing Bolden and the Presidential Science Advisor about what Plan B is in case the commercial side can't deliver, and weren't getting any satisfactory answer. I've seen commercial advocates asking why there's so much opposition, and it boils down to Tip O'Neil's adage that "All Politics is Local." Meaning that Senators and Congresscritters who have contractors in their districts doing Constellation work want those companies and people still doing business with NASA, even if it's a "Son of Constellation" program. Promises of more jobs in 5-7 years if commercial works is fine, but it doesn't put food on the table or pay the mortgage. They want to keep working. Maybe if the economy was in better shape, there wouldn't be as much opposition, or maybe not. You obviously haven't heard that Constellation has been cancelled. It's in NASA's budget proposal for 2011. You obviously don't know how the US government works, or what a "proposal" means. The president's FY11 NASA budget *proposes* to cancel Constellation. But Constellation is funded through the end of FY10, and Congress decides what federal agencies are authorized to do and how much money is to be appropriated for them to do it. The House NASA Authorization bill continues Constellation in all but name. The Senate bill also dumps the Constellation name but retains Orion and authorizes a new shuttle-derived HLV to replace Ares. The administration has endorsed the Senate bill. SpaceX has endorsed it as well. The most likely outcome in the end is a compromise that strongly resembles the Senate bill. Quite true, Jorge. The Commercial advocates just don't have the votes to get what they want. Alan forgot the old adage in D.C.: "The President proposes, but Congress disposes." ObamaSpace is going to be disposed of. If need be, buy an EELV like Atlas V, stick Orion on it, and fly to ISS until these commercial providers live up to their promises. Have Pads 39-A and -B for HLV and BEO. If the commercial provider has the booster, but NASA has the capsule in the intirim, fine. Only when commercial providers prove they can do the job should the ISS and other LEO trips be handed over to them. Even then, NASA should have a very strong oversight program in place, so that safety doesn't take a back seat to a company's bottom line. |
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![]() "Jochem Huhmann" wrote in message ... Matt Wiser writes: You're quite right on that. Reality will bite Space X and the other Commercial Space providers in the ass when the House and Senate reconcile their NASA budget bills. SpaceX seems to have quite a few customers outside NASA. Most of them, actually. Jochem -- But Space X hasn't flown people yet. They've only had one Falcon 9 test flight. Once they start flying people on a regular basis, whether to ISS or just plain orbital flights, they'll start to convince the skeptics (myself included). There's a Space News article (I don't have the URL) where some commercial advocates point this out. They were saying that the only way they'll get Congress to support their efforts is to fly, and fly regularly. I'd be more comfortable with an outfit like Boeing, Lockheed-Martin, or ULA than with a startup, anyway. They've been around the block with EELVs, have capsules in advanced development (Boeing's CST, Lockheed-Martin's Orion or Orion derivative), and get the job done for NASA and DOD launching science and national security payloads. But they still have to show that the job can be done. |
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In sci.space.history Matt Wiser wrote:
Quite true, Jorge. The Commercial advocates just don't have the votes to get what they want. Alan forgot the old adage in D.C.: "The President proposes, but Congress disposes." ObamaSpace is going to be disposed of. If need be, buy an EELV like Atlas V, stick Orion on it, and fly to ISS until these commercial providers live up to their promises. Have Pads 39-A and -B for HLV and BEO. If the commercial provider has the booster, but NASA has the capsule in the intirim, fine. Only when commercial providers prove they can do the job should the ISS and other LEO trips be handed over to them. Even then, NASA should have a very strong oversight program in place, so that safety doesn't take a back seat to a company's bottom line. And yet, even then, the congresscritters defending the flow of funds to their districts will still seek some reason why the commercial types just are right for the task. I suspect that 99.9% of the reasons given by Congress presently has everything to do with where the work will be done, not what work will be done. That the present COTS contenders haven't flown people is merely cover. rick jones -- It is not a question of half full or empty - the glass has a leak. The real question is "Can it be patched?" these opinions are mine, all mine; HP might not want them anyway... ![]() feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH... |
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On 7/31/2010 5:08 AM, Quadibloc wrote:
And, of course, with Zubrin's plan, a Saturn V is all you need to get to Mars. Yes, this is quite significant. NASA looked at Zubrin's proposal, and said the math in regards to weight on it didn't add up: http://www.thespacereview.com/article/677/1 This doesn't surprise me, as he was a proponent of the Black Horse orbital launch vehicle also...and the math on it was highly suspect too. The airframe's mass fraction was overly optimistic, the specific impulse claimed for the engine was too high, and the onboard propellant tankage too small in relation to the overall size of the vehicle: http://www.risacher.org/bh/analog.html Pat |
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![]() "Rick Jones" wrote in message ... In sci.space.history Matt Wiser wrote: Quite true, Jorge. The Commercial advocates just don't have the votes to get what they want. Alan forgot the old adage in D.C.: "The President proposes, but Congress disposes." ObamaSpace is going to be disposed of. If need be, buy an EELV like Atlas V, stick Orion on it, and fly to ISS until these commercial providers live up to their promises. Have Pads 39-A and -B for HLV and BEO. If the commercial provider has the booster, but NASA has the capsule in the intirim, fine. Only when commercial providers prove they can do the job should the ISS and other LEO trips be handed over to them. Even then, NASA should have a very strong oversight program in place, so that safety doesn't take a back seat to a company's bottom line. And yet, even then, the congresscritters defending the flow of funds to their districts will still seek some reason why the commercial types just are right for the task. I suspect that 99.9% of the reasons given by Congress presently has everything to do with where the work will be done, not what work will be done. That the present COTS contenders haven't flown people is merely cover. rick jones Maybe, but the commercial advocates have made some promises in the past few years that they haven't kept yet. Like Tip O'Neil used to say, "All politics is local." Or what Sen. Bill Nelson (D-FL) told a bunch of commercial advocates trying to restore the original funding level for commercial crew/cargo services: "This isn't rocket science, it's political science." The Congresscritters whose constitutents work on NASA's existing exploration programs want their voters to keep working, even if it's on a program that's derived from the POR. Promises of more jobs in 5-7 years look good in the media, but they don't pay the mortgage or put food on the table for those employees facing pink slips. The commercial space community needs to stop talking (or wailing) and start flying-with people, and do it often. Only then will those skeptical of commercial space (and count me as one) be satisfied. |
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On 8/1/2010 8:04 PM, Matt Wiser wrote:
Even then, NASA should have a very strong oversight program in place, so that safety doesn't take a back seat to a company's bottom line. Yeah; look how well they did with the Shuttle in regards to strong safety oversight. ;-) Pat |
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On Aug 2, 12:30*am, Pat Flannery wrote:
NASA looked at Zubrin's proposal, and said the math in regards to weight on it didn't add up: Interesting. I wouldn't have expected _that_ kind of mistake, so I didn't try and re-do the math on converting hydrogen into carbon monoxide fuel on Mars. The flaws I noticed in "The Case for Mars" were his optimism regarding recycling in the life-support, his cavalier attitude towards back contamination, and his handwaving about radiation hazards. Those weren't insuperable, simply the understandable failings of an enthusiast. I was a little disappointed to see them, but none of those points were fatal to the idea. Myself, I would think that it _is_ obviously better if you can transport *energy* to Mars for making the return journey instead of both energy _and_ reaction mass. So even if a specific mission profile submitted by Robert Zubrin doesn't have the numbers right, his _technique_ is valid. Now, maybe you would do *even better* if you just brought a nuclear reactor with you to Mars, and used the energy from that to make fuel. Particularly if there's lots of water on Mars in the form of permafrost from which to electrolyze hydrogen. Or bring solar mirrors with you. Or equipment to make shiny iron mirrors on Mars. But for a first trip, one doesn't want to require the astronauts to achieve too much that is complicated to get home. While colonization of Mars is the real goal, I don't think one can jump straight from automated probes to colonization. People will first have to land on Mars to study it in much greater detail, and to test out the processes needed for colonization, before colonization can be started. And even the first wave of colonists will need a return option. John Savard |
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"Matt Wiser" writes:
I'd be more comfortable with an outfit like Boeing, Lockheed-Martin, or ULA than with a startup, anyway. They've been around the block with EELVs, have capsules in advanced development (Boeing's CST, Lockheed-Martin's Orion or Orion derivative), and get the job done for NASA and DOD launching science and national security payloads. But they still have to show that the job can be done. I think Dragon is in a more advanced state of development than CST or Orion... at least they already have a prototype in orbit. Jochem -- "A designer knows he has arrived at perfection not when there is no longer anything to add, but when there is no longer anything to take away." - Antoine de Saint-Exupery |
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In sci.space.history Jochem Huhmann wrote:
I think Dragon is in a more advanced state of development than CST or Orion... at least they already have a prototype in orbit. Isn't that overstating it a bit? The Dragon that sat on top of F9 Flight 1 wasn't all that far removed from boiler-plate - I don't think it had much in the way of any systems in it, it was mostly just mass and shape. Perhaps "instrumented mock-up." rick jones -- I don't interest myself in "why". I think more often in terms of "when", sometimes "where"; always "how much." - Joubert these opinions are mine, all mine; HP might not want them anyway... ![]() feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH... |
#20
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On Aug 2, 9:48*am, Rick Jones wrote:
In sci.space.history Jochem Huhmann wrote: I think Dragon is in a more advanced state of development than CST or Orion... at least they already have a prototype in orbit. Isn't that overstating it a bit? *The Dragon that sat on top of F9 Flight 1 wasn't all that far removed from boiler-plate - I don't think it had much in the way of any systems in it, it was mostly just mass and shape. *Perhaps "instrumented mock-up." rick jones -- That's probably the case. |
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