![]() |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]() "John Doe" wrote in message ... Lets say, for the sake of discussion, that Godzilla was unhappy with the drink he got served on a Florida beach and decided to step on the OPF, damaging beyond repair the 3 shuttles. And lets say (again for sake of discussion) that the US government would mandate NASA to get back into space ASAP. (forget cost). Which would be the QUICKEST to get man back in space on US-built hardware ? Build new shuttles based on existing plans, reusing some of the spare parts and infrastructure already there (such as tile manufacturing, software etc) (and including all improvement that had been made since originally built). ? There aren't many spare parts for the shuttles. After the Challenger disaster, the structural spare parts that NASA did have were used to build the replacement orbiter Endeavour. Funding never materialized to build another set of structural spares. It might be possible to refit Enterprise to flight status, but it would be difficult. This was determined to be so difficult that structural test article 99 was rebuilt into OV-99 (Challenger) instead of refitting Enterprise for space flight. Build Saturn rockets and Apollo capsules ? That would be harder than rebuilding Enterprise. The tooling no longer exists, suppliers no longer exist, and etc. or Build something totally new such as the CEV/CRV/whatever-the-name-is-this-week vehicle whose technology hasn't really had a chance to prove itself yet. There is no new technology needed for CEV. Since that is the direction we intend to go anyway, why not immediately start development? Jeff -- Remove icky phrase from email address to get a valid address. |
#3
|
|||
|
|||
![]() "John Doe" wrote in message ... Lets say, for the sake of discussion, that Godzilla was unhappy with the drink he got served on a Florida beach and decided to step on the OPF, damaging beyond repair the 3 shuttles. And lets say (again for sake of discussion) that the US government would mandate NASA to get back into space ASAP. (forget cost). Which would be the QUICKEST to get man back in space on US-built hardware ? Give the money to Rutan, stand back, and stfu. |
#4
|
|||
|
|||
![]()
On or about Mon, 04 Oct 2004 05:07:58 -0400, John Doe made the sensational claim that:
Lets say, for the sake of discussion, that Godzilla was unhappy with the drink he got served on a Florida beach and decided to step on the OPF, damaging beyond repair the 3 shuttles. And lets say (again for sake of discussion) that the US government would mandate NASA to get back into space ASAP. (forget cost). I prefer to deal with reality, plz k thx. -- This is a siggy | To E-mail, do note | Just because something It's properly formatted | who you mean to reply-to | is possible, doesn't No person, none, care | and it will reach me | mean it can happen |
#5
|
|||
|
|||
![]() Give the money to Rutan, stand back, and stfu. yep he said and I quote. NASA IS SCREWED! .. .. End the dangerous wasteful shuttle now before it kills any more astronauts.... |
#6
|
|||
|
|||
![]()
John Doe wrote in message ...
Lets say, for the sake of discussion, that Godzilla was unhappy with the drink he got served on a Florida beach and decided to step on the OPF, damaging beyond repair the 3 shuttles. And lets say (again for sake of discussion) that the US government would mandate NASA to get back into space ASAP. (forget cost). Which would be the QUICKEST to get man back in space on US-built hardware ? For what mission is Congress unleashing unlimited funds and mandating "get back in space ASAP"? Just to get humans outside the atmosphere for the sake of getting out of the atmosphere? Obviously, Rutan and SS1 seem ready today. To get into orbit? Buy Soyuz. If Congress can unleash unlimited funds to get into orbit ASAP, I think they can repeal any laws prohibiting buying Soyuz. If it absolutely must be US built, rebuild a Mercury-like craft. It was built from scratch in a jiffy the first time, surely we could build a similar vehicle from scratch in a comparable amount of time today. Who says a spacecraft needs three astronauts? Again, what's the mission? To finish ISS and support it? You need the shuttle's cargo bay, so you've got to build something very similar. It's probably quickest to build something as close as possible to an exact duplicate, resisting the temptation to improve on it. Reason? We don't need to retrain the standing army. Of course, that doesn't mean an exact duplicate is the best long-term strategy. In reality, of course, if the shuttle orbiters are destroyed, there will be political debate about what the future of manned space flight ought to be, what capabilities we need, how much money should be spent on them, etc. It may take the politicians longer to come up with a mission and budget than it takes the engineers and mechanics to come up with the hardware. I'd argue that a lot of the problems with the shuttle and with ISS stem from an ill-defined mission. Unless there's a fairly clearly defined and well understood purpose to the whole affair, anything as large and bureaucratic as a space program is going to fumble around, accomplishing little and spending much. --Rich |
#7
|
|||
|
|||
![]()
John Doe wrote:
Which would be the QUICKEST to get man back in space on US-built hardware ? If your goal is to simply get back into space, then capsule on an expendable is the way to go. Build new shuttles based on existing plans, reusing some of the spare parts and infrastructure already there (such as tile manufacturing, software etc) (and including all improvement that had been made since originally built). ? If your goal is to reconstitute some from of actual space capability there are two way to go: A: capsule based (as above), plus a Progress style cargo vehicle. Downside: The ISS CBM hatches are not currently fitted for autodocking. B: Boeing has offered a shuttle replacement for (IIRC) something like a billion so far as they are only held to being moldline and interface compatible. D. -- Touch-twice life. Eat. Drink. Laugh. |
#8
|
|||
|
|||
![]() |
#9
|
|||
|
|||
![]() "Derek Lyons" wrote in message ... John Doe wrote: Which would be the QUICKEST to get man back in space on US-built hardware ? If your goal is to simply get back into space, then capsule on an expendable is the way to go. Build new shuttles based on existing plans, reusing some of the spare parts and infrastructure already there (such as tile manufacturing, software etc) (and including all improvement that had been made since originally built). ? If your goal is to reconstitute some from of actual space capability there are two way to go: A: capsule based (as above), plus a Progress style cargo vehicle. Downside: The ISS CBM hatches are not currently fitted for autodocking. You'd have to resort to berthing, which was originally considered for the space station as an alternative to docking. This was in pre-Russia years, so using APAS wasn't yet being considered. Essentially you station keep your cargo module close to ISS (cold gas thrusters would be good for this) and then use the SSRMS to grapple the cargo module. Once this is done, it's just like attaching an MPLM to a CBM. From what i can tell, this is how the Japanese HTV will attach to ISS. There are some pictures of this this page: http://spaceboy.nasda.go.jp/lib/rock.../htv_01_e.html Here are links to four pictures of the grapple/berthing process: http://spaceboy.nasda.go.jp/lib/rock.../g/htv_006.jpg http://spaceboy.nasda.go.jp/lib/rock.../g/htv_009.jpg http://spaceboy.nasda.go.jp/lib/rock.../g/htv_016.jpg http://spaceboy.nasda.go.jp/lib/rock.../g/htv_017.jpg B: Boeing has offered a shuttle replacement for (IIRC) something like a billion so far as they are only held to being moldline and interface compatible. While this is true, I'd be a bit leery of that number. Considering how the costs of several shuttle upgrades have escalated over the years (e.g. electric actuators to replace the APU's and hydraulics), I'd expect $1 billion to be a low estimate. Jeff -- Remove icky phrase from email address to get a valid address. Jeff |
#10
|
|||
|
|||
![]()
"Jeff Findley" wrote:
"Derek Lyons" wrote in message ... A: capsule based (as above), plus a Progress style cargo vehicle. Downside: The ISS CBM hatches are not currently fitted for autodocking. You'd have to resort to berthing, which was originally considered for the space station as an alternative to docking. D'oh. I knew that. Really I did. B: Boeing has offered a shuttle replacement for (IIRC) something like a billion so far as they are only held to being moldline and interface compatible. While this is true, I'd be a bit leery of that number. Considering how the costs of several shuttle upgrades have escalated over the years (e.g. electric actuators to replace the APU's and hydraulics), I'd expect $1 billion to be a low estimate. One suspects the cost will be directly proportional to the amount of fiddling NASA does with the proposal. Boeing is after all a commercial company with a lot of non-govermental business, and thus (at least theoretically) knows how to do accurate cost estimation. D. -- Touch-twice life. Eat. Drink. Laugh. -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Unofficial Space Shuttle Launch Guide | Steven S. Pietrobon | Space Shuttle | 0 | August 5th 04 01:36 AM |
Unofficial Space Shuttle Launch Guide | Steven S. Pietrobon | Space Shuttle | 0 | April 2nd 04 12:01 AM |
LSC Room 103, LCCV, UPRCV | Allen Thomson | Policy | 4 | February 5th 04 11:20 PM |
Unofficial Space Shuttle Launch Guide | Steven S. Pietrobon | Space Shuttle | 0 | February 2nd 04 03:33 AM |
Unofficial Space Shuttle Launch Guide | Steven S. Pietrobon | Space Shuttle | 0 | September 12th 03 01:37 AM |