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On Apr 15, 10:34*am, "Jeff Findley"
wrote: I'm encouraged by the section on a "Heavy Lift Rocket" this: * *Developing a Heavy Lift Rocket, with a Specific Decision in 2015, * *to Expand Our Reach in Space: To demonstrate a concrete timetable * *and commitment for expanding human exploration further, the * *President is announcing that, in addition to investing in * *transformative heavy-lift technologies, he will commit to making * *a specific decision in 2015 on the development of a new heavy-lift * *rocket architecture. I'm not sure what's so encouraging about this. He's promising that at the end of his second term -- which he may not actually have -- he'll think about it. The Shuttle is still being retired at the end of this year, and Constellation is still out of the running. So for at least 5 years, we won't even have plans for manned or heavy-lift vehicles, and then it will be an indefinite period of time until the approved design is actually built. What am I missing here? |
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Damien Valentine wrote:
I'm not sure what's so encouraging about this. *He's promising that at the end of his second term -- which he may not actually have -- he'll think about it. *The Shuttle is still being retired at the end of this year, and Constellation is still out of the running. *So for at least 5 years, we won't even have plans for manned or heavy-lift vehicles, and then it will be an indefinite period of time until the approved design is actually built. What am I missing here? I don't think you have missed a thing. You are spot on. Obama's speech yesterday ... and his ' plan ' for NASA is just his usual gobbledygook. Personally I'm outraged. Who the hell does Obama think he is ? A trillion dollars for Govt. run health care over the next ten years. Hey no big deal. NASA's budget is 0.6% of the federal budget. $19 billion. But hey ... were going to have to scuttle the Constelation program ... it had cost overruns. WTF ? Obama is directing NASA to focus on a space taxi to the space station. I thought that was what Ares 1 was ( or is capable of ). Obama says a decision will be made on a new " heavy lift " rocket in 2015. I thought Ares 2 was the new " heavy lift " rocket. My God. Ares 2 can put more cargo in low Earth orbit than a Saturn V could. How much more " heavy lift " does one need ? Look fine ... want to cancel the Moon missions, I'm okay with that. But I'm in the opinion that however flawed the Ares systems are ... well ... we needed these damn rockets ! I was of the opinon that Ares 2 was ' flexable ' enough ( such as the Saturn V was ) either for a moon mission, a visit to an asteroid, a Mars mission, or placing heavy cargo in Earth orbit. Christ almighty ... I hope Congress has some members with brains enough to stop this Obama nonsense. WHAT am I missing ??? Chris |
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On Apr 16, 11:33*am, CCBlack wrote:
Damien Valentine wrote: I'm not sure what's so encouraging about this. *He's promising that at the end of his second term -- which he may not actually have -- he'll think about it. *The Shuttle is still being retired at the end of this year, and Constellation is still out of the running. *So for at least 5 years, we won't even have plans for manned or heavy-lift vehicles, and then it will be an indefinite period of time until the approved design is actually built. What am I missing here? I don't think you have missed a thing. *You are spot on. *Obama's speech yesterday ... and his ' plan ' for NASA is just his usual gobbledygook. *Personally I'm outraged. *Who the hell does Obama think he is ? *A trillion dollars for Govt. run health care over the next ten years. *Hey no big deal. *NASA's budget is 0.6% of the federal budget. $19 billion. *But hey ... were going to have to scuttle the Constelation program ... it had cost overruns. *WTF ? Obama is directing NASA to focus on a space taxi to the space station. *I thought that was what Ares 1 was ( or is capable of ). Obama says a decision will be made on a new " heavy lift " rocket in 2015. *I thought Ares 2 was the new " heavy lift " rocket. *My God. Ares 2 can put more cargo in low Earth orbit than a Saturn V could. How much more " heavy lift " does one need ? Look fine ... want to cancel the Moon missions, I'm okay with that. But I'm in the opinion that however flawed the Ares systems are ... well ... we needed these damn rockets ! *I was of the opinon that Ares 2 was ' flexable ' enough ( such as the Saturn V was ) either for a moon mission, a visit to an asteroid, a Mars mission, or placing heavy cargo in Earth orbit. *Christ almighty ... I hope Congress has some members with brains enough to stop this Obama nonsense. WHAT am I missing ??? Fah. You want to talk you neighbors into independently funding Ares? That would be a useful move. This "Obama nonsense" lines up better with the thinking I've absorbed from sci.space.* (including ideas from savants that have left the group ... google Henry's Brown Bess) and the realities of funding a technology program that doesn't have an immediate threat to counter. And why do we need these damn rockets? There is reason to believe modular fueling systems which could be launched on Delta IVH, Atlas 5+, or maybe Falcon 9 would be much more useful than a single heavy lift design. Strap a few Leonardo's to it, put a bubble-wrap shield layer, and dock your crew launch/return vehicle to it. /dps |
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snidely wrote:
Fah. *You want to talk you neighbors into independently funding Ares? That would be a useful move. Where do you think the $9 billion over the past four years spent on Constellation came from ? Tax payers like ME and my neighbors. Democrats in congress were talking about ANOTHER $100 billion dollar bailout for the U.S. . Talk about " Fah ". " Clunkers 3 Billion $$ NASA 0 $$ " Jeez ... seems like if the approach is to promote the " commercialization " of spaceflight ... fine. But don't scuttle NASA in the process. Like Gene Cernan has said about Space X and other such programs ... " they don't yet know what they don't know ". This "Obama nonsense" lines up better with the thinking I've absorbed from sci.space.* (including ideas from savants that have left the group ... google Henry's Brown Bess) and the realities of funding *a technology program that doesn't have an immediate threat to counter. In place of the Moon mission, The Narcissist in Chief's vision offers, at least initially, NOTHING in terms of human exploration of the solar system. What the administration calls a bold new initiative does not spell out a next destination or timetable for getting there. NASA a few years from now would be fundamentally different from NASA today. The space agency would no longer operate its own spacecraft, but essentially buy tickets for its astronauts. By canceling Ares, NASA would have no backup if the commercial companies were not able to deliver. Mind if I call that " Obama nonsense " ? And why do we need these damn rockets? *There is reason to believe modular fueling systems which could be launched on Delta IVH, Atlas 5+, or maybe Falcon 9 would be much more useful than a single heavy lift design. Strap a few Leonardo's to it, put a bubble-wrap shield layer, and dock your crew launch/return vehicle to it. NASA has also not yet spelled out how it would go about verifying that commercial rockets are sufficiently safe for carrying astronauts. A worry is also that the decades of expertise and experience within NASA in operating spacecraft will be lost, and that the commercial companies might stumble as they learn. If the approach succeeds, it could jumpstart a vibrant space industry, but it is also risky. The Obama plan does not include any specific program to develop a Heavy Lift booster. Instead, the plan vaguely mentions the pursuit of game changing technologies that would one day enable faster voyages beyond Earth. Something to think about ... the total cost of the Apollo program was approximately $136 billion in 2007 dollars. For comparison, the International Space Station will cost around 157 billion dollars by the time its completed. AND I don't even know what in the heck they do up there in the Space station. It has very little scientific value. I'm sad to see the Constellation program go ... because at least it was doing * something *. With a rocket like Ares V NASA could do all sorts of things. Put a space station in orbit with one shot. Go to the moon ... whatever. Chris |
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On Apr 17, 8:17*pm, CCBlack wrote:
snidely wrote: Fah. *You want to talk you neighbors into independently funding Ares? That would be a useful move. Where do you think the $9 billion over the past four years spent on Constellation came from ? *Tax payers like ME and my neighbors. Democrats in congress were talking about ANOTHER $100 billion dollar bailout for the U.S. . *Talk about " Fah ". " Clunkers 3 Billion $$ NASA 0 $$ " Jeez ... seems like if the approach is to promote the " commercialization " of spaceflight ... fine. *But don't scuttle NASA in the process. *Like Gene Cernan has said about Space X and other such programs ... " they don't yet know what they don't know ". This "Obama nonsense" lines up better with the thinking I've absorbed from sci.space.* (including ideas from savants that have left the group ... google Henry's Brown Bess) and the realities of funding *a technology program that doesn't have an immediate threat to counter. In place of the Moon mission, The Narcissist in Chief's vision offers, at least initially, NOTHING in terms of human exploration of the solar system. What the administration calls a bold new initiative does not spell out a next destination or timetable for getting there. NASA a few years from now would be fundamentally different from NASA today. The space agency would no longer operate its own spacecraft, but essentially buy tickets for its astronauts. By canceling Ares, NASA would have no backup if the commercial companies were not able to deliver. Mind if I call that " Obama nonsense " ? And why do we need these damn rockets? *There is reason to believe modular fueling systems which could be launched on Delta IVH, Atlas 5+, or maybe Falcon 9 would be much more useful than a single heavy lift design. Strap a few Leonardo's to it, put a bubble-wrap shield layer, and dock your crew launch/return vehicle to it. NASA has also not yet spelled out how it would go about verifying that commercial rockets are sufficiently safe for carrying astronauts. A worry is also that the decades of expertise and experience within NASA in operating spacecraft will be lost, and that the commercial companies might stumble as they learn. *If the approach succeeds, it could jumpstart a vibrant space industry, but it is also risky. *The Obama plan does not include any specific program to develop a Heavy Lift booster. Instead, the plan vaguely mentions the pursuit of game changing technologies that would one day enable faster voyages beyond Earth. Something to think about ... the total cost of the Apollo program was approximately $136 billion in 2007 dollars. For comparison, the International Space Station will cost around 157 billion dollars by the time its completed. *AND I don't even know what in the heck they do up there in the Space station. *It has very little scientific value. I'm sad to see the Constellation program go ... because at least it was doing * something *. *With a rocket like Ares V NASA could do all sorts of things. *Put a space station in orbit with one shot. *Go to the moon ... whatever. Chris Well nasa was spending boatloads of money on a booster that burns so rought it could kill the crew by shaking them.......... just what we DONT NEED |
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On Apr 17, 10:49*pm, " wrote:
On Apr 17, 8:17*pm, CCBlack wrote: snidely wrote: Fah. *You want to talk you neighbors into independently funding Ares? That would be a useful move. Where do you think the $9 billion over the past four years spent on Constellation came from ? *Tax payers like ME and my neighbors. Democrats in congress were talking about ANOTHER $100 billion dollar bailout for the U.S. . *Talk about " Fah ". " Clunkers 3 Billion $$ NASA 0 $$ " Jeez ... seems like if the approach is to promote the " commercialization " of spaceflight ... fine. *But don't scuttle NASA in the process. *Like Gene Cernan has said about Space X and other such programs ... " they don't yet know what they don't know ". This "Obama nonsense" lines up better with the thinking I've absorbed from sci.space.* (including ideas from savants that have left the group ... google Henry's Brown Bess) and the realities of funding *a technology program that doesn't have an immediate threat to counter. In place of the Moon mission, The Narcissist in Chief's vision offers, at least initially, NOTHING in terms of human exploration of the solar system. What the administration calls a bold new initiative does not spell out a next destination or timetable for getting there. NASA a few years from now would be fundamentally different from NASA today. The space agency would no longer operate its own spacecraft, but essentially buy tickets for its astronauts. By canceling Ares, NASA would have no backup if the commercial companies were not able to deliver. Mind if I call that " Obama nonsense " ? And why do we need these damn rockets? *There is reason to believe modular fueling systems which could be launched on Delta IVH, Atlas 5+, or maybe Falcon 9 would be much more useful than a single heavy lift design. Strap a few Leonardo's to it, put a bubble-wrap shield layer, and dock your crew launch/return vehicle to it. NASA has also not yet spelled out how it would go about verifying that commercial rockets are sufficiently safe for carrying astronauts. A worry is also that the decades of expertise and experience within NASA in operating spacecraft will be lost, and that the commercial companies might stumble as they learn. *If the approach succeeds, it could jumpstart a vibrant space industry, but it is also risky. *The Obama plan does not include any specific program to develop a Heavy Lift booster. Instead, the plan vaguely mentions the pursuit of game changing technologies that would one day enable faster voyages beyond Earth. Something to think about ... the total cost of the Apollo program was approximately $136 billion in 2007 dollars. For comparison, the International Space Station will cost around 157 billion dollars by the time its completed. *AND I don't even know what in the heck they do up there in the Space station. *It has very little scientific value. I'm sad to see the Constellation program go ... because at least it was doing * something *. *With a rocket like Ares V NASA could do all sorts of things. *Put a space station in orbit with one shot. *Go to the moon ... whatever. Chris Well nasa was spending boatloads of money on a booster that burns so rought it could kill the crew by shaking them.......... just what we DONT NEED- Hide quoted text - - Show quoted text - When Apollo 8 was launched 41 years ago, one of the primary test objectives for that launch was to, Confirm the launch vehicle longitudinal oscillation environment during the S-IC stage burn . Another test objective was to verify new SI-C modifications that were designed to suppress low frequency oscillations ( POGO ). The previous, unmanned Saturn V shook so hard that SLA debris was observed falling from the vehicle. In other words ... it was a manned test flight. NASA and contractor engineers had developed multiple options to damp out the vibrations caused by the way Ares I solid rocket first stage burns. But ... but ... but ... it could drift into the launch tower on lift off ... but, but, but, ... the crew wouldn't survive LES. It all would have been worked out. Chris |
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CCBlack wrote:
When Apollo 8 was launched 41 years ago, one of the primary test objectives for that launch was to, Confirm the launch vehicle longitudinal oscillation environment during the S-IC stage burn . Another test objective was to verify new SI-C modifications that were designed to suppress low frequency oscillations ( POGO ). The previous, unmanned Saturn V shook so hard that SLA debris was observed falling from the vehicle. In other words ... it was a manned test flight. Chris You're comparing two very different issues. Pogo was solved by basically eliminating it. The issue with the SRBs is inherent to the design and requires dampening (last I heard active) between the 1st stage and the crew capsule. Also, in the worst case scenarios, the Apollo CM was pretty much always able to clear the booster. Orion would have had the booster run through it or burn the parachute. Orion and Ares-I were a dog. I'm glad to see them on the trash-heap of history, especially Ares-I. Just remember, when the goal was a "shuttle derived booster" so that you could minimize changes and you've: Added a 5 segment Changed the grain pattern Changed the nozzle Added active dampening and other changes, about the only thing you're left with is the shape of the casing, you really need to go back and question your original assumptions. You're no longer saving money, time or effort. And you can toss out a lot of your historical data since it no longer applies. -- Greg Moore Ask me about lily, an RPI based CMC. |
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On Apr 17, 5:17*pm, CCBlack wrote:
NASA has also not yet spelled out how it would go about verifying that commercial rockets are sufficiently safe for carrying astronauts. Well, as has been pointed out here a few times, those commercial rockets are already carrying might expensive payloads. If you can launch a few dozen comm sats and telsats and weather sats, there is a certain amount of confidence that the launcher will work. It's not accidental that Space X is launching less expensive loads at first, but you can expect them to have a track record pretty soon, too. /dps |
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