Quote from: Brovane on 01/14/2016 09:36 pmQuote from: robert_d on 01/14/2016 09:21 pmSecond major question: Will SpaceX be allowed to reuse Dragons?The current contract doesn't say that SpaceX cannot re-use Dragons. SpaceX is already planning to re-use Dragons for CRS-1 contracted missions. Has SpaceX said when that might happen?
Quote from: robert_d on 01/14/2016 09:21 pmSecond major question: Will SpaceX be allowed to reuse Dragons?The current contract doesn't say that SpaceX cannot re-use Dragons. SpaceX is already planning to re-use Dragons for CRS-1 contracted missions.
Second major question: Will SpaceX be allowed to reuse Dragons?
Now now Chris - descent is important in a viable forum - even when they are wrong :)
How much does an Atlas 552 go for? (for the Dreamchaser). Also, any idea how NASA managed to bring the contract max (with options) up to $14Bn? I assume, that is for flights up to 2028 (instead of the 2019-2024 period)?
Quote from: robert_d on 01/14/2016 09:59 pmQuote from: Brovane on 01/14/2016 09:36 pmQuote from: robert_d on 01/14/2016 09:21 pmSecond major question: Will SpaceX be allowed to reuse Dragons?The current contract doesn't say that SpaceX cannot re-use Dragons. SpaceX is already planning to re-use Dragons for CRS-1 contracted missions. Has SpaceX said when that might happen?I have never heard anything from SpaceX about reusing whole Dragons. However, they are already reusing parts from recovered Dragons.
The goal for Dragon 2 is land-safe-refuel-relaunch.
Quote from: abaddon on 01/14/2016 09:50 pmSpaceX bid 3 hour return (Dragon V2 propulsive landing) and 6 hour return (water landing), so this does not seem to be a unique capability.Oh yeah, about that - how exactly is SpaceX planning to move specific cargo from a Pacific splashdown point to wherever it needs to be in 6 hours? Speedboat? Heli? Boatplane? I have no idea how far the journey would be, or how fast commercially available boats are. I guess it kind of depends how close to land you're allowed to splash down...
SpaceX bid 3 hour return (Dragon V2 propulsive landing) and 6 hour return (water landing), so this does not seem to be a unique capability.
I was still rooting for the Jupiter-Exoliner till the end because reusing the in space hardware is as important as the boosters. But I suppose it was complex and potentially risky proposal.
And I suspect it will cost more (development costs still to be paid, large disposable module), which goes against scaling up, not for scaling up.
Quote from: Darkseraph on 01/14/2016 09:54 pmI was still rooting for the Jupiter-Exoliner till the end because reusing the in space hardware is as important as the boosters. But I suppose it was complex and potentially risky proposal. I was too. It's understandable that for the short term (the timeframe of this contract and the limited scope of delivery to ISS) Jupiter wasn't the right choice. But I think that's unfortunate because it's a capability I'd like to see developed -- a reusable in-space tug.Reusability is the key to scaling our space activities up. I'm not satisfied with seven astronauts at a time in orbit. The real promise of commercial cargo and crew is to get costs down so we can scale up.That's why I'm still most excited about SpaceX of the three winners of CRS-2. They're they only ones evolving toward a fully-reusable system. Expendable launch vehicles can't scale. Dream Chaser just provides the same services as other systems without a fundamentally important difference, so I can't get excited about it. And I suspect it will cost more (development costs still to be paid, large disposable module), which goes against scaling up, not for scaling up.
Quote from: Star One on 01/14/2016 09:30 pmI wonder when we'll finally see DC's first flight test firmed up.Quote from: gommtu on 01/14/2016 09:30 pmQuote from: GalacticIntruder on 01/14/2016 09:22 pmI am not a DreamChaser fan. Big win for ULA Atlas. They got 1/3, and maybe even 2/3 if Orbital decides.People may call me cynical, but I think all of the effusive affection for Dream Chaser is misplaced adoration for the shuttle. Personally, I loathed the shuttle, so I kind of loathe Dream Chaser.I think you're kind of downplaying the capabilities that DC brings to the table for ISS cargo, especially in the rapid return of science.What are the other capabilities that other spacecraft can't provide?
I wonder when we'll finally see DC's first flight test firmed up.Quote from: gommtu on 01/14/2016 09:30 pmQuote from: GalacticIntruder on 01/14/2016 09:22 pmI am not a DreamChaser fan. Big win for ULA Atlas. They got 1/3, and maybe even 2/3 if Orbital decides.People may call me cynical, but I think all of the effusive affection for Dream Chaser is misplaced adoration for the shuttle. Personally, I loathed the shuttle, so I kind of loathe Dream Chaser.I think you're kind of downplaying the capabilities that DC brings to the table for ISS cargo, especially in the rapid return of science.
Quote from: GalacticIntruder on 01/14/2016 09:22 pmI am not a DreamChaser fan. Big win for ULA Atlas. They got 1/3, and maybe even 2/3 if Orbital decides.People may call me cynical, but I think all of the effusive affection for Dream Chaser is misplaced adoration for the shuttle. Personally, I loathed the shuttle, so I kind of loathe Dream Chaser.
I am not a DreamChaser fan. Big win for ULA Atlas. They got 1/3, and maybe even 2/3 if Orbital decides.
Quote from: ChrisWilson68 on 01/14/2016 10:12 pmQuote from: Darkseraph on 01/14/2016 09:54 pmI was still rooting for the Jupiter-Exoliner till the end because reusing the in space hardware is as important as the boosters. But I suppose it was complex and potentially risky proposal. I was too. It's understandable that for the short term (the timeframe of this contract and the limited scope of delivery to ISS) Jupiter wasn't the right choice. But I think that's unfortunate because it's a capability I'd like to see developed -- a reusable in-space tug.Reusability is the key to scaling our space activities up. I'm not satisfied with seven astronauts at a time in orbit. The real promise of commercial cargo and crew is to get costs down so we can scale up.That's why I'm still most excited about SpaceX of the three winners of CRS-2. They're they only ones evolving toward a fully-reusable system. Expendable launch vehicles can't scale. Dream Chaser just provides the same services as other systems without a fundamentally important difference, so I can't get excited about it. And I suspect it will cost more (development costs still to be paid, large disposable module), which goes against scaling up, not for scaling up.Chris the scientists stated why they were excited to have DC in the mix... Why is it's "dissimilar redundancy" so hard to accept?~Rob
Chris the scientists stated why they were excited to have DC in the mix... Why is it's "dissimilar redundancy" so hard to accept?~Rob
To reiterate, NASA will be able to select a propulsive Dragon return with the same upper bound of timeframe of delivery of samples (three hours) as DreamChaser. quick return of samples is not a capability unique to DreamChaser.
Quote from: Rocket Science on 01/14/2016 10:22 pmQuote from: ChrisWilson68 on 01/14/2016 10:12 pmQuote from: Darkseraph on 01/14/2016 09:54 pmI was still rooting for the Jupiter-Exoliner till the end because reusing the in space hardware is as important as the boosters. But I suppose it was complex and potentially risky proposal. I was too. It's understandable that for the short term (the timeframe of this contract and the limited scope of delivery to ISS) Jupiter wasn't the right choice. But I think that's unfortunate because it's a capability I'd like to see developed -- a reusable in-space tug.Reusability is the key to scaling our space activities up. I'm not satisfied with seven astronauts at a time in orbit. The real promise of commercial cargo and crew is to get costs down so we can scale up.That's why I'm still most excited about SpaceX of the three winners of CRS-2. They're they only ones evolving toward a fully-reusable system. Expendable launch vehicles can't scale. Dream Chaser just provides the same services as other systems without a fundamentally important difference, so I can't get excited about it. And I suspect it will cost more (development costs still to be paid, large disposable module), which goes against scaling up, not for scaling up.Chris the scientists stated why they were excited to have DC in the mix... Why is it's "dissimilar redundancy" so hard to accept?~RobEverything has a cost. The biggest problem with NASA, in my opinion, is the lack of appreciation for cost.Sure, all else being equal, dissimilar redundancy is great.But where dissimilar redundancy is really important is in a single system where there's a high cost of failure, such as a vehicle that carries crew. Dissimilar redundancy across different missions is less important.Cygnus, Cargo and Crew Dragon, CST-100, Soyuz, and Progress already provide way more than enough dissimilar redundancy for ISS logistics. We already saw the effects of several accidents at the same time in 2015 -- Cygnus and Dragon were both down. It was pretty much a worst-case scenario. And it was no real problem.Adding another commercial cargo carrier into the mix adds little value.