It seems less likely, especially given ATP for some form of SLS, that it would be worth rebuilding LC-39B and the MLP just for crewed Atlas V 402, but it's still (as far as we know) a publicly-possible CONOPS.
Almost certainly a crewed Atlas V from LC-41 would have a second VIF and MLP built. DoD wouldn't have it any other way.
Quote from: Antares on 04/19/2011 03:47 amAlmost certainly a crewed Atlas V from LC-41 would have a second VIF and MLP built. DoD wouldn't have it any other way.At that point, why are you still using 41?
Quote from: alexw on 04/19/2011 02:44 amQuote from: Chris Bergin on 04/18/2011 10:34 pmIf Liberty is dead, and I think it would be more accurate to say it "ain't looking great", then that also dooms the Ares I ML - several hundred million dollars worth. UNLESS something can be done with past Block 0 (that goes on a Shuttle ML) SLS. IIRC, it was posted a little while back (Ross?) that the loads analysis conclusion was that the Ares I MLP could be reused for Atlas (or Delta?), but not the Heavies. It seems less likely, especially given ATP for some form of SLS, that it would be worth rebuilding LC-39B and the MLP just for crewed Atlas V 402, but it's still (as far as we know) a publicly-possible CONOPS. -AlexYeah, I remember asking one of the actual ML guys about other vehicles. Liberty would have been the only one that could use that launch mount, and for EELVs etc as they've had to scrap the whole mount and build a new one - to the point it might be viable just starting over, based on costs involved. Might as well send the Ares ML to Disney.....at least you could still slap the Rollercoaster EES on it and charge 5 bucks a shout http://www.nasaspaceflight.com/2006/11/nasa-will-build-rollercoaster-for-ares-i-escape/I'd assume that also means SLS is not simple either, but at least they can start with the near nominal Pad 39A to start with and worry about the deal for 39B later.
Quote from: Chris Bergin on 04/18/2011 10:34 pmIf Liberty is dead, and I think it would be more accurate to say it "ain't looking great", then that also dooms the Ares I ML - several hundred million dollars worth. UNLESS something can be done with past Block 0 (that goes on a Shuttle ML) SLS. IIRC, it was posted a little while back (Ross?) that the loads analysis conclusion was that the Ares I MLP could be reused for Atlas (or Delta?), but not the Heavies. It seems less likely, especially given ATP for some form of SLS, that it would be worth rebuilding LC-39B and the MLP just for crewed Atlas V 402, but it's still (as far as we know) a publicly-possible CONOPS. -Alex
If Liberty is dead, and I think it would be more accurate to say it "ain't looking great", then that also dooms the Ares I ML - several hundred million dollars worth. UNLESS something can be done with past Block 0 (that goes on a Shuttle ML) SLS.
Quote from: simonbp on 04/19/2011 04:07 amQuote from: Antares on 04/19/2011 03:47 amAlmost certainly a crewed Atlas V from LC-41 would have a second VIF and MLP built. DoD wouldn't have it any other way.At that point, why are you still using 41? Because it's the cheapest option, per ULA's own analysis (VIF2 or SMARF + MLP2, vs. LC-37A, vs. LC-39) [PATD2010]. -Alex
Quote from: Chris Bergin on 04/19/2011 03:20 amQuote from: alexw on 04/19/2011 02:44 amQuote from: Chris Bergin on 04/18/2011 10:34 pmIf Liberty is dead, and I think it would be more accurate to say it "ain't looking great", then that also dooms the Ares I ML - several hundred million dollars worth. UNLESS something can be done with past Block 0 (that goes on a Shuttle ML) SLS. IIRC, it was posted a little while back (Ross?) that the loads analysis conclusion was that the Ares I MLP could be reused for Atlas (or Delta?), but not the Heavies. It seems less likely, especially given ATP for some form of SLS, that it would be worth rebuilding LC-39B and the MLP just for crewed Atlas V 402, but it's still (as far as we know) a publicly-possible CONOPS. -AlexYeah, I remember asking one of the actual ML guys about other vehicles. Liberty would have been the only one that could use that launch mount, and for EELVs etc as they've had to scrap the whole mount and build a new one - to the point it might be viable just starting over, based on costs involved. Might as well send the Ares ML to Disney.....at least you could still slap the Rollercoaster EES on it and charge 5 bucks a shout http://www.nasaspaceflight.com/2006/11/nasa-will-build-rollercoaster-for-ares-i-escape/I'd assume that also means SLS is not simple either, but at least they can start with the near nominal Pad 39A to start with and worry about the deal for 39B later.Why not redo 39B like Vandenberg as far as support structure goes?Maybe go farther keep the clean pad and have multiple launch platforms for SLS,Atlas,Delta,and F9.
Because it's the cheapest option, per ULA's own analysis (VIF2 or SMARF + MLP2, vs. LC-37A, vs. LC-39) [PATD2010].
Quote from: alexw on 04/19/2011 04:48 am Because it's the cheapest option, per ULA's own analysis (VIF2 or SMARF + MLP2, vs. LC-37A, vs. LC-39) [PATD2010]. Not true. ULA's analysis had LC-39 as the cheapest option after using LC-41 as/is. Followed by using LC-37, building LC-37A *then* building another pad at LC-41.
Again though, ultimately it is up to NASA/DoD where the commercial crew launches from, as they send the checks.
So, to me the big question is what happens after ISS? Even under a best case scenario, these new craft will have only 4 or 5 years of operation prior to the 2020 ISS retirement date. Maybe ISS will be extended a bit (or maybe it won't even make it to 2020) but in any case, I have to wonder what comes next, and what happens if the brief overlap between commercial crew inauguration and ISS retirement disappears due to CCDev delays or ISS failure.
So, to me the big question is what happens after ISS? Even under a best case scenario, these new craft will have only 4 or 5 years of operation prior to the 2020 ISS retirement date.
The ISS is a modular design, so it could (theoretically) have entire elements replaced over time.You could replace the life support systems (probably with Paragon's), do orbital reboost (possibly using VASIMR engines), add on or replace modules using inflatables, and replace/augment the solar arrays with much smaller and more powerful ones.ly a BA-330.
Is there any information, Why United Space Alliance has withdrawn their offer end of March?
Here's my article on it all:http://www.nasaspaceflight.com/2011/04/four-companies-win-nasas-ccdev-2-awards
Here's my article on it all:http://www.nasaspaceflight.com/2011/04/four-companies-win-nasas-ccdev-2-awards/
More rounds will follow, with one managerial memo speaking of the build-up towards CCDEV-3.
One thing that I am still confused about is whether CCDev-3 will be a one year program or a multiple years program. I had assumed that it would be for multiple years but now I am not so sure.
Another question I had was whether any of the optional milestones in the CCDev-2 space act agreements were picked up by NASA. I believe that none of the optional milestones were picked up but it's not entirely clear when reading the space act agreements.