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![]() Assuming that Stick is the wave of the future, what robotic scientific missions could get a ride on it if NASA were inclined to use it that way? Given the mass of CEV, I suspect some fairly interesting solar system missions could be substituted. |
#2
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Th only humane thing to do with it is cancel it.
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Well, that's not exactly true.
If you do actually go ahead and build it, please cram it up Michael Griffin's ass. |
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Allen Thomson wrote:
Assuming that Stick is the wave of the future, what robotic scientific missions could get a ride on it if NASA were inclined to use it that way? Given the mass of CEV, I suspect some fairly interesting solar system missions could be substituted. Stick would need a third stage to perform earth escape missions. Although a two-stage Stick with a presumed 180 tonne second stage could outlift a Delta 4 Heavy to LEO, it would only be able to boost a Delta 4 Medium's worth of payload to GTO - and none at all to escape velocity. With a Centaur third stage, however, Stick would outhaul anything in the world's space lift fleet. It would loft about 1.5 Ariane 5ECA's worth of mass (15 tonnes) to GTO, for example. It would be able to boost about 11.5 tonnes to escape velocity. It would be able to handle the Pluto New Horizons launch, planned to go aboard an Atlas 551, with ease. A three stage Stick could loft just about any Battlestar Galactica class deep space exploration spacecraft that NASA could conjure up. A two stage Stick could orbit Hubble-class telescopes, etc. But the question is, will NASA have any funding for such payloads? - Ed Kyle |
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Ed Kyle wrote:
A three stage Stick could loft just about any Battlestar Galactica class deep space exploration spacecraft that NASA could conjure up. A two stage Stick could orbit Hubble-class telescopes, etc. But the question is, will NASA have any funding for such payloads? If they can offload Space Station State Department, then, yes. -- "The only thing that galls me about someone burning the American flag is how unoriginal it is. I mean if you're going to pull the Freedom-of-speech card, don't be a hack, come up with something interesting. Fashion Old Glory into a wisecracking puppet and blister the system with a scathing ventriloquism act, or better yet, drape the flag over your head and desecrate it with a large caliber bullet hole." Dennis Miller |
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On 4 Nov 2005 17:32:12 -0800, "Ed Kyle" wrote:
A three stage Stick could loft just about any Battlestar Galactica class deep space exploration spacecraft that NASA could conjure up. A two stage Stick could orbit Hubble-class telescopes, etc. But the question is, will NASA have any funding for such payloads? Wow... with throw weight like that, it seems to me we might be better off dumping one of the EELVs and making Stick/Centaur available as the alternate launcher for the Pentagon. NASA is only using it two to four times a year, anyway. Brian |
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![]() Brian Thorn wrote: On 4 Nov 2005 16:34:41 -0800, wrote: Th only humane thing to do with it is cancel it. Let's see... Atlas 5: Engines built in Russia, a country happily selling weapons technology to Iran, a country which proudly proclaims it wants to wipe America (and Israel) off the "face of the map". Its future is shaky, to say the least. But in the present, it exists, does it not? Wow, Russia : our international space partners, no less! Delta IV: More politically viable, but doomed to commercial failure by its high cost and now being kept alive solely by the government. It would be gone by now, except for Atlas 5's annoying dependence on the Russians. Wow, a brand new cryogenic rocket, with a brand new launch pad, and a factory sitting idle capable of producing 18 to 24 Delta IV Mediums a year! That is just pathetic! Stick: Partly reusable, more powerful than either EELV's largest variant, much more expensive than Atlas 5, but not a lot more expensive than Delta IV-Heavy. Schtick : Does not exist, will take 10 billion dollars to develop, heavy lift variant proposes to throw away SSMEs, the upper stage of which will use 25 year old engines. That is so coo! What I really think is great about it, is the fact that the SRBs have to be shipped all the way to UTAH and back to be reused. That will surely reduce launch costs in the future! If you were to cancel one of these, it isn't immediately obvious to me that it should be the Stick. Well, just offhand, I propose cancelling the one that doesn't exist, that doesn't promise to reduce launch costs, and perhaps we should use the ones that do exist, do not require additional development costs, and are currently sitting idle. Now which ones would those be? In the future, I also propose that we concentrate on 1) life support 2) reducing launch costs. You know, the cart and the horse thing. http://webpages.charter.net/tsiolkovsky/rocket.htm |
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Thread | Thread Starter | Forum | Replies | Last Post |
Someone to defend the Stick? | Alex Terrell | Policy | 95 | September 18th 05 10:51 PM |
CEV launch - Stick or HLV? | Alex Terrell | Policy | 11 | August 22nd 05 02:34 AM |
CEV "Stick booster" to use SLC 40 launch site? | gb | History | 16 | August 2nd 05 08:40 PM |
Orbiter retirement, the stick and SSME availability | Phil Bagust | Policy | 3 | July 20th 05 06:38 AM |
Mirror mirror on a stick | Peter Grimwood | UK Astronomy | 3 | March 12th 04 06:39 PM |