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NASA Encounters Problems With Ares 1 Launch Vehicle Design
http://www.spaceref.com/news/viewnews.html?id=1171 ".....have reported that the current design is underpowered to the tune of a metric ton or more......" ".....Ares 1 would not be able to put the present Orion spacecraft design (Crew Exploration Vehicle) into the orbit NASA desires......" ".....One possible solution to the Stick's current design problems is to add side-mounted solid rocket motors....." Also.... According to discussions on Nasaspaceflight.com the Ares 1 is in trouble: --The CEV will have to use its Service Module engine as a 3rd stage. The CEV service module will have to add 1000fps to achieve orbital velocity on a mission to the ISS. --The Ares 1 payload weight is down to 22 m-tons. --There may be problems with the Ares 1 wobbling at liftoff and striking objects (umbilical tower) near the pad in high winds. http://forum.nasaspaceflight.com/for...sts=67&start=1 -Rusty |
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On 11 Nov 2006 21:51:58 -0800, in a place far, far away, "Rusty"
made the phosphor on my monitor glow in such a way as to indicate that: NASA Encounters Problems With Ares 1 Launch Vehicle Design http://www.spaceref.com/news/viewnews.html?id=1171 ".....have reported that the current design is underpowered to the tune of a metric ton or more......" ".....Ares 1 would not be able to put the present Orion spacecraft design (Crew Exploration Vehicle) into the orbit NASA desires......" ".....One possible solution to the Stick's current design problems is to add side-mounted solid rocket motors....." Also.... According to discussions on Nasaspaceflight.com the Ares 1 is in trouble: --The CEV will have to use its Service Module engine as a 3rd stage. The CEV service module will have to add 1000fps to achieve orbital velocity on a mission to the ISS. --The Ares 1 payload weight is down to 22 m-tons. --There may be problems with the Ares 1 wobbling at liftoff and striking objects (umbilical tower) near the pad in high winds. I'm shocked, shocked... Max Hunter always used to say there was a reason that aspect ratios of rockets didn't exceed a certain value. Though using the SM as a third stage is not necessarily a bad idea. NASA never really traded that (or at least, never allowed the CEV contractors to--they always provided a delta V for the vehicle in the SRD). |
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![]() "Rusty" wrote in message ups.com... NASA Encounters Problems With Ares 1 Launch Vehicle Design http://www.spaceref.com/news/viewnews.html?id=1171 ".....have reported that the current design is underpowered to the tune of a metric ton or more......" ".....Ares 1 would not be able to put the present Orion spacecraft design (Crew Exploration Vehicle) into the orbit NASA desires......" ".....One possible solution to the Stick's current design problems is to add side-mounted solid rocket motors....." Ok, and at what point does someone say, "wait, our original assumptions have all been proven wrong, we need to go back to the drawing board." T This turkey is now adding an albabtross to its own body. Also.... According to discussions on Nasaspaceflight.com the Ares 1 is in trouble: --The CEV will have to use its Service Module engine as a 3rd stage. The CEV service module will have to add 1000fps to achieve orbital velocity on a mission to the ISS. --The Ares 1 payload weight is down to 22 m-tons. --There may be problems with the Ares 1 wobbling at liftoff and striking objects (umbilical tower) near the pad in high winds. http://forum.nasaspaceflight.com/for...sts=67&start=1 -Rusty |
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In article et,
"Greg D. Moore \(Strider\)" wrote: Ok, and at what point does someone say, "wait, our original assumptions have all been proven wrong, we need to go back to the drawing board." T Most likely never. Ares will keep thousands of people employed just as it is, until some time after it is cancelled. |
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![]() Greg D. Moore (Strider) wrote: Ok, and at what point does someone say, "wait, our original assumptions have all been proven wrong, we need to go back to the drawing board." T This turkey is now adding an albabtross to its own body. This one throws me. The extended SRB should have been a easily calculated quantity based on Shuttle experience. Is the problem the second stage coming in too heavy, or is there a ISP problem with it? This should have never gotten to this point, and if they have this sort of problems with Ares I, God knows how Ares V is going to go wrong, as that has a lot more variables in its design. Pat |
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![]() Pat Flannery wrote: Greg D. Moore (Strider) wrote: Ok, and at what point does someone say, "wait, our original assumptions have all been proven wrong, we need to go back to the drawing board." T This turkey is now adding an albabtross to its own body. This one throws me. The extended SRB should have been a easily calculated quantity based on Shuttle experience. Is the problem the second stage coming in too heavy, or is there a ISP problem with it? This should have never gotten to this point, and if they have this sort of problems with Ares I, God knows how Ares V is going to go wrong, as that has a lot more variables in its design. Pat Add the Ares 1 to the list of failed NASA programs (X-30 NASP, X-33, X-38, OSP, HL-20)? At one time they could design and build the Saturn V and land on the moon in 8-years. Now they have trouble designing a rocket that can carry a capsule to orbit. Rusty |
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![]() "Rusty" wrote in message oups.com... At one time they could design and build the Saturn V and land on the moon in 8-years. Now they have trouble designing a rocket that can carry a capsule to orbit. True, but money was no object then. And look where it got us anyway. 12 men on the moon. (and would have been no more than 18 if all missions planned had flown and succeeded.) Oh well. Rusty |
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![]() Rusty wrote: This one throws me. The extended SRB should have been a easily calculated quantity based on Shuttle experience. Is the problem the second stage coming in too heavy, or is there a ISP problem with it? This should have never gotten to this point, and if they have this sort of problems with Ares I, God knows how Ares V is going to go wrong, as that has a lot more variables in its design. Pat Add the Ares 1 to the list of failed NASA programs (X-30 NASP, X-33, X-38, OSP, HL-20)? At one time they could design and build the Saturn V and land on the moon in 8-years. Now they have trouble designing a rocket that can carry a capsule to orbit. That was exactly what I was thinking of. Did the design team that came up with Ares 1 get so hung up on getting the contract that they oversold its performance, the way Lockheed -Martin did with the X-33? Pat |
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Greg D. Moore (Strider) wrote:
True, but money was no object then. I think that it's more to the point that there was a well-defined goal to meet, and a timescale to follow; that's about the only situation where government ever gets anything useful done. Without such a goal you could give them an infinite amount of money and they'd still waste it all. Today there's just 'yeah, um, guys, we need to replace the shuttle sometime and we're thinking maybe we'll go to Mars sooner or later, or maybe the Moon or something, so see what you can come up. Oh, and make sure that it doesn't get us laid off.' I'm sure that even today's NASA could put men on the Moon in eight years if there was a really pressing need to do so and someone in the government willing to kick them in the ass if they didn't achieve it, but there isn't. Mark |
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