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#11
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![]() Rand Simberg wrote: On Sun, 01 Jan 2006 15:59:00 GMT, in a place far, far away, Christopher made the phosphor on my monitor glow in such a way as to indicate that: Yet another suborbital flight company that'll probably go the same way as Roton did. Roton was not a suborbital flight company. And it didn't have billions of dollars of its own money, as Jeff Bezos does. Other than that your prediction is spot on (not). Oh, when is he going to 'go for orbit'? Presumably after he's sorted out suborbit. The mistake (including NASA and the Air Force) everyone makes is to take too large a leap before they've figured out how to do things cheaply and reliably. As Jeff Greason has pointed out numerous times, it's much easier to gradually expand the envelope of a low-cost reliable system (the way we did with aviation) than to take an existing high-performance system and make it low-cost and reliable. And he's right, but not as folks like Rutan are doing it with new vehicles for every significant advance in flight envelope. Greason means building a vehicle theoretically capable of going all the way, but having intact abort capability and recoverability so that it can be tested like aircraft a taxi tests, takeoff tests, level flight tests, maneuvering tests, gradual speed increment tests, incremental altitude tests, etc. Rutan did a bit of this with ~14 test flights of increasing altitude and speed, after doing some drop tests, but is essentially building new vehicle designs for SS2 and SS3. The X-37 and other projects are doing something similar, but nobody with significant funding is building an orbital vehicle right now that is capable of such incremental testing and intact abort landings. DC-X and X-33 were the closest attempts at it thus far. DC-X followed essentially the General Dynamics proposals of the 80's, the Y and I vehicles would have been truly full envelope capable. |
#12
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On 1 Jan 2006 13:04:47 -0800, in a place far, far away, "Mike Lorrey"
made the phosphor on my monitor glow in such a way as to indicate that: Presumably after he's sorted out suborbit. The mistake (including NASA and the Air Force) everyone makes is to take too large a leap before they've figured out how to do things cheaply and reliably. As Jeff Greason has pointed out numerous times, it's much easier to gradually expand the envelope of a low-cost reliable system (the way we did with aviation) than to take an existing high-performance system and make it low-cost and reliable. And he's right, but not as folks like Rutan are doing it with new vehicles for every significant advance in flight envelope. Greason means building a vehicle theoretically capable of going all the way, but having intact abort capability and recoverability so that it can be tested like aircraft a taxi tests, takeoff tests, level flight tests, maneuvering tests, gradual speed increment tests, incremental altitude tests, etc. Not to speak for him, but I don't think that's what he means. At least not for going from his first suborbital vehicle to an orbital one. There will have to be some step functions in between, but the point is that the experience gained will be incorporated into each new vehicle development as well. |
#14
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On Mon, 02 Jan 2006 17:10:49 GMT, in a place far, far away,
Christopher made the phosphor on my monitor glow in such a way as to indicate that: No, what I meant was this billionaire is going into the space tourism business, but he's just another space tourism company IF he pull's it off that will only be offering a sub orbital hop. Initially. I'd rather wait for other companies to offer full access to space that cough up for a sub orbital flight with say only 5 minutes at the top of the hop, and just a taste of spaceflight. So? You aren't the entire market. |
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Christopher wrote:
I'd rather wait for other companies to offer full access to space that cough up for a sub orbital flight with say only 5 minutes at the top of the hop, and just a taste of spaceflight. So? So why settle for meat loaf when there is pheasant on the menu. Pheasant won't be served until quite some time in the future. Meat loaf is a more immediately available dish. If you crave meat, the choice isn't as simple as you imply. |
#17
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It's easier to serve pheasant in a space-limited ag environment. Better
yet, rabbit and duck, as well as trout, would be the normal three meat animals on a space station/moon base. Beef is just too wasteful, you really have no use for those big bones (unless you can engineer a cow to grow iron, aluminum, or titanium bones from eating regolith)... |
#18
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On 4 Jan 2006 07:37:24 -0800, "Mike Lorrey" wrote:
It's easier to serve pheasant in a space-limited ag environment. Better yet, rabbit and duck, as well as trout, would be the normal three meat animals on a space station/moon base. It was a metaphor. Beef is just too wasteful, you really have no use for those big bones (unless you can engineer a cow to grow iron, aluminum, or titanium bones from eating regolith)... -- Christopher |
#19
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Alan Anderson wrote:
Pheasant won't be served until quite some time in the future. It's been on the menu for years now, $20 million per serving. -- "Always look on the bright side of life." To reply by email, replace no.spam with my last name. |
#20
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Russell Wallace wrote:
Alan Anderson wrote: Pheasant won't be served until quite some time in the future. It's been on the menu for years now, $20 million per serving. Good point. With meat loaf several orders of magnitude less expensive, though, the choice is still anything but simple. |
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