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| Reasonable Space Vehicle | 20 Aug 2005 19:32 GMT | 10 |
I've thought about what a reasonable, achievable, less expensive earth-to-orbit launch vehicle would look like. I keep coming back to a two-stage-to-orbit vehicle that reuses both stages. The first stage is a LOX/RP1 powered 'big cheap booster' -
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| Why SSME for SDLV? | 19 Aug 2005 14:47 GMT | 7 |
The shuttle-derived heavy-lift vehicles under discussion would for the most part be powered by the SSME. Why use the expensive SSME on an expendable vehicle when the cheaper RS-68 is available? As a bonus, the RS-68 provides more thrust. It's true that it's
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| Mass Ratio Doublecheck | 19 Aug 2005 11:58 GMT | 2 |
I was wondering if someone could confirm that the masses of the following fictional, upper stage spaceplane (VTHL) was realistic given current aerospace technology. The spaceplane's fueled mass is 200 metric tons, while in orbit (with
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| Soyuz to the Moon - but how to return? | 16 Aug 2005 23:01 GMT | 3 |
I recently read of the plan to sell commerical seats to the moon via a Soyuz flyby. Of course, the Soyuz was originally designed to go to the moon during the 1960's space race, but what I am wondering about is the capability of the Soyuz to withstand the much greater re-entry ...
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| Capsule Splashdown in Gulf of Mexico - Feasible? | 11 Aug 2005 21:58 GMT | 2 |
As far as I can determine, all U.S. capsule splashdowns have been in the South Pacific or Atlantic Oceans. Are there any reasons why the Gulf of Mexico has never been used for water recovery of manned spacecraft? I ask because, if a commercially developed space capsule
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| Overheating when going through atmosphere | 11 Aug 2005 12:44 GMT | 28 |
I think I understand why objects heat up when going through the atmosphere and therefore why re-entry vehicles need heat shielding. My question is why we don't need heat shielding when launching. Aren't we going through the same atmosphere?
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| Butterfly strapped to a bullet | 09 Aug 2005 05:51 GMT | 4 |
Story Musgraves' description of the Shuttle at the recent IICA2005 Conference in Melbourne, Australia, last week... Story gave two slide-shows from his time in space - one at the dinner on the Tuesday night, and another on Thursday on his work on the Hubble telescope.
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| self-patching walls for micro-meteors | 04 Aug 2005 20:45 GMT | 3 |
If one wanted to have a wall between vacuum and .15 Oxygen atm (or 1 atm air if you wish), what material will after a micro-meteor passes through patch itself??? This is rather than the thick wall or shield defense against micro-meteors.
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