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#1
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Hi all
All those discussions on the new launcher Nasa should keep the STS system up and running after they retire the orbiter develop Shuttle C now, and you can use it withing 3/4 years That would save a lot of money, is unmanned and has tremendous lift capacity they only need to make a new aft compartment and avionics systems That should cost not that much as there are still some old block 1 SSME around to be used a final time (if non reuseable) or make them reuaseable by landing them somewhere safe (with the nice balloon system they used on mars (just is suggestion) |
#2
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![]() "serge" wrote in message ... Hi all All those discussions on the new launcher Nasa should keep the STS system up and running after they retire the orbiter develop Shuttle C now, and you can use it withing 3/4 years That would save a lot of money, is unmanned and has tremendous lift capacity they only need to make a new aft compartment and avionics systems That should cost not that much as there are still some old block 1 SSME around to be used a final time (if non reuseable) or make them reuaseable by landing them somewhere safe (with the nice balloon system they used on mars (just is suggestion) Boeing will probably charge $30billion or so to develop such a vehicle. Let's just use the Falcon V and use multiple launches to assemble the thing in orbit. |
#3
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On 2004-01-17, Dr. O dr.o@xxxxx wrote:
Boeing will probably charge $30billion or so to develop such a vehicle. Let's just use the Falcon V and use multiple launches to assemble the thing in orbit. Falcon V ? It (will have) a payload capacity roughly similar to the Delta-II. Swap Falcon V for the Delta-IV and Atlas-V EELV's, and I'd agree. Iain |
#4
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"serge" wrote in message ...
Hi all All those discussions on the new launcher Nasa should keep the STS system up and running after they retire the orbiter develop Shuttle C now, and you can use it withing 3/4 years That would save a lot of money, is unmanned and has tremendous lift capacity they only need to make a new aft compartment and avionics systems One wonders if something like this might not be part of someone's plan. The timeline fits. The four-year gap between Shuttle retirement and CEV human flight would give enough time to modify Kennedy Space Center's LC 39 launch facilities. Shuttle-C development would cost an estimated $3-4 billion, which would appear to fit in the projected budget. - Ed Kyle |
#5
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"ed kyle" wrote in message
om... "serge" wrote in message ... Hi all All those discussions on the new launcher Nasa should keep the STS system up and running after they retire the orbiter develop Shuttle C now, and you can use it withing 3/4 years That would save a lot of money, is unmanned and has tremendous lift capacity they only need to make a new aft compartment and avionics systems One wonders if something like this might not be part of someone's plan. The timeline fits. The four-year gap between Shuttle retirement and CEV human flight would give enough time to modify Kennedy Space Center's LC 39 launch facilities. Shuttle-C development would cost an estimated $3-4 billion, which would appear to fit in the projected budget. - Ed Kyle Why on earth use SSME's in the old Shuttle-C scenarios when you have RS-68's available. |
#6
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![]() "Iain Young" wrote in message ... On 2004-01-17, Dr. O dr.o@xxxxx wrote: Boeing will probably charge $30billion or so to develop such a vehicle. Let's just use the Falcon V and use multiple launches to assemble the thing in orbit. Falcon V ? It (will have) a payload capacity roughly similar to the Delta-II. Swap Falcon V for the Delta-IV and Atlas-V EELV's, and I'd agree. The latter cost more than $100million to launch. That's not an option. |
#7
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"Dr. O" dr.o@xxxxx wrote in
: "Iain Young" wrote in message ... On 2004-01-17, Dr. O dr.o@xxxxx wrote: Boeing will probably charge $30billion or so to develop such a vehicle. Let's just use the Falcon V and use multiple launches to assemble the thing in orbit. Falcon V ? It (will have) a payload capacity roughly similar to the Delta-II. Swap Falcon V for the Delta-IV and Atlas-V EELV's, and I'd agree. The latter cost more than $100million to launch. That's not an option. What's it going to cost to design a payload in multiple pieces that have to be assembled onorbit as opposed to a unit launch? More chances for launch failure plus compromises needed to make a given unit into smaller pieces, certainly at higher cost. OTOH, what would it cost to build a Falcon X and launch on that? I suspect diminishing returns on the concept, but maybe it's doable. --Damon |
#8
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"Jon G" wrote in message ...
"ed kyle" wrote in message om... "serge" wrote in message ... Hi all All those discussions on the new launcher Nasa should keep the STS system up and running after they retire the orbiter develop Shuttle C now, and you can use it withing 3/4 years That would save a lot of money, is unmanned and has tremendous lift capacity they only need to make a new aft compartment and avionics systems One wonders if something like this might not be part of someone's plan. The timeline fits. The four-year gap between Shuttle retirement and CEV human flight would give enough time to modify Kennedy Space Center's LC 39 launch facilities. Shuttle-C development would cost an estimated $3-4 billion, which would appear to fit in the projected budget. - Ed Kyle Why on earth use SSME's in the old Shuttle-C scenarios when you have RS-68's available. The real value of a shuttle-derived vehicle would be use of the powerful SRBs, and maybe the ET. Matching RS-68 to those elements sounds like a terrific idea to me. You could make a vehicle capable of putting four or five Delta-IV-Heavy equivalent payloads into LEO in a single launch. Four or five Delta-IV-Heavy launches would likely cost $0.75 to 1.0 billion just for launch costs. A shuttle-derived heavy lifter might cost half that amount or less for the launch. There would be mission cost savings too due to less LEO assembly time/effort. - Ed Kyle |
#9
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"Dr. O" dr.o@xxxxx wrote in message .. .
"Iain Young" wrote in message ... On 2004-01-17, Dr. O dr.o@xxxxx wrote: Boeing will probably charge $30billion or so to develop such a vehicle. Let's just use the Falcon V and use multiple launches to assemble the thing in orbit. Falcon V ? It (will have) a payload capacity roughly similar to the Delta-II. Swap Falcon V for the Delta-IV and Atlas-V EELV's, and I'd agree. The latter cost more than $100million to launch. That's not an option. It takes almost seven Falcon V launches to put up as much LEO mass as a single Delta IV-H. Most plausible manned lunar mission scenarios will require 4 or 5 Delta IV-H launches. There is no way that a mission requiring 28-35 Falcon V launches would cost less than a mission using 4-5 Delta IV-H launches. I'm talking total mission costs here, not launch costs which are a fraction of total mission costs. The point is moot anyway, because if LunarBush becomes real, NASA will need a more powerful launch vehicle than the current Delta IV-H design. - Ed Kyle |
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