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Shuttle Derived Launchers - Safe, Simple, Soon
Website from Alliant Techsystems showing proposed
shuttle derived launchers, titled, "Safe, Simple, Soon": http://www.safesimplesoon.com/media-images.htm http://www.safesimplesoon.com/default.htm Rusty |
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Rusty wrote:
Website from Alliant Techsystems showing proposed shuttle derived launchers, titled, "Safe, Simple, Soon": http://www.safesimplesoon.com/media-images.htm http://www.safesimplesoon.com/default.htm Anyone have any thoughts on how hard it would be to air-start an SSME? They seem to be proposing using one (or two) on the second stage. |
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From: David Higgins Anyone have any thoughts on how hard it would be to air-start an SSME? They seem to be proposing using one (or two) on the second stage. It must be possible, otherwise it wouldn't already be proven. And it must have been reliable, otherwise it wouldn't be safe. Phil |
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In article ,
David Higgins wrote: Anyone have any thoughts on how hard it would be to air-start an SSME? They seem to be proposing using one (or two) on the second stage. There's nothing inherently hard about it. It does require some added equipment, either on the SSME stage or on the previous stage, to do various minor pre-start jobs that are done for the shuttle by ground support gear. My understanding is that this was studied quite a while back -- there have long been proposals to use SSMEs as high-performance space maneuvering engines, for example -- and it doesn't look difficult. -- "Think outside the box -- the box isn't our friend." | Henry Spencer -- George Herbert | |
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On Sat, 25 Jun 2005 20:12:04 -0500, Rusty wrote
(in article ): Website from Alliant Techsystems showing proposed shuttle derived launchers, titled, "Safe, Simple, Soon": http://www.safesimplesoon.com/media-images.htm http://www.safesimplesoon.com/default.htm Rusty Ah, the joys of view-graph engineerning. Makes it look all so damned easy, doesn't it? Kind of like sliding down a snowy slope with your feet on two planks looks easy until the first time you try it. Fifteen years ago we used to "Mac up" stuff like this all the time. Now I suppose they "Powerpoint" it up instead. :-/ -- Herb Schaltegger, GPG Key ID: BBF6FC1C "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." - Benjamin Franklin, 1759 http://www.individual-i.com/ |
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I have no doubt the SSME mod is doable. However, given that NASA is
preselecting a single source for the heavy-lifter engines, the contractor is likely to hold up the government with cost estimates bordering on extortion. Matt ALL POSTS ARE SOLELY THE PERSONAL OPINION OF THE AUTHOR |
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On Sun, 26 Jun 2005 02:42:14 GMT, in a place far, far away, David
Higgins made the phosphor on my monitor glow in such a way as to indicate that: Rusty wrote: Website from Alliant Techsystems showing proposed shuttle derived launchers, titled, "Safe, Simple, Soon": http://www.safesimplesoon.com/media-images.htm http://www.safesimplesoon.com/default.htm Anyone have any thoughts on how hard it would be to air-start an SSME? They seem to be proposing using one (or two) on the second stage. Probably mods to the hot box, and a requalification of the engine. Many millions of dollars. |
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In article ,
Rusty wrote: http://www.safesimplesoon.com/default.htm The concept is ideal for a compnay with 14,000 employees to support. |
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Herb Schaltegger wrote:
Ah, the joys of view-graph engineerning. Makes it look all so damned easy, doesn't it? Kind of like sliding down a snowy slope with your feet on two planks looks easy until the first time you try it. Fifteen years ago we used to "Mac up" stuff like this all the time. Now I suppose they "Powerpoint" it up instead. :-/ "No poor ******* ever won a war by producing PowerPoint slides for his country. He won by making the other poor ******* produce PowerPoint slides for _his_ country" Gen. Tommy Franks modification to Patton's Observation -- Pete Stickney Java Man knew nothing about coffee. |
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