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#1
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What is the simplest, cheapest CEV possible?
"Jeff Findley" :
This is essentially the argument that NASA has had all along for whatever their current generation of CEV would be. The problem with this argument is that the CEV NASA wants to build has far more capability than you need for a simple, do or die, CEV. That's why the X-38/ACRV was canned, because it was so close to being an OSP that the administration decided to build the OSP. Unfortunately, NASA has also had chronic problems with keeping its budgets in line with projections. This is especially true for ISS. It would have been far better for a bare bones, do or die, CEV to be designed, developed, and tested before any ISS hardware made it into orbit. No doubt that many within NASA would have complained that it wasn't good enough (not enough crossrange or whatever), but at least the US would have had something rather than nothing in this area. My personal favorite for a low cost CEV (back in the late 80's) was an Apollo derived capsule. Keep the exterior mold lines, TPS, and parachutes, but update the interior and use a cold gas N2 RCS in conjunction with a solid retro package. LEO Apollo missions had a relatively benign G profile, and with interior updates, you could have added a bit more lift to the trajectory, further limiting G loading and providing more control authority. Instead, NASA has insisted on a new design based on a lifting body, that still had to resort to parafoil to get the landing speed down to something acceptable. So how much would it cost to build something like this, and how much would it mass? Meaning, what could be used to get it to the ISS for the least amount of money? Earl Colby Pottinger -- I make public email sent to me! Hydrogen Peroxide Rockets, OpenBeos, SerialTransfer 3.0, RAMDISK, BoatBuilding, DIY TabletPC. What happened to the time? http://webhome.idirect.com/~earlcp |
#2
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Here. Load the entire URL that extends over both lines.
http://www.photocenter.ru/myphoto/fi.../LMPLy8MOOoUAA BZLBrsAAAAE.html |
#3
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"Jim Oberg" wrote in
: Here. Load the entire URL that extends over both lines. http://www.photocenter.ru/myphoto/fi...F9ScQ/LMPLy8MO OoUAA BZLBrsAAAAE.html Kliper's getting wings? --Damon |
#4
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Damon Hill wrote
Kliper's getting wings? In an alternate version. Check out slides #24 and #25, which have a lot of interesting stuff on them. Winged and unwinged versions, a living volume embedded in the service module behind the reentry part, an interstage adapter with emergency escape rockets/orbital insertion rockets. The thing is neat in concept. One wonders how far it will go. |
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