NASA does. They cannot reuse flown Dragons for ISS resupply. SpaceX hence plans to refly them as DragonLabs.
Quote from: ugordan on 02/20/2010 08:52 pmNASA does. They cannot reuse flown Dragons for ISS resupply. SpaceX hence plans to refly them as DragonLabs.What's the source for that "cannot resuse" issue with NASA. I don't doubt it, just curious.
I'm pretty sure there is no source. If the Dragons can be safely reused (most likely they can be), they will be for even servicing the ISS.
Quote from: William Barton on 02/20/2010 09:11 pmQuote from: ugordan on 02/20/2010 08:52 pmNASA does. They cannot reuse flown Dragons for ISS resupply. SpaceX hence plans to refly them as DragonLabs.What's the source for that "cannot resuse" issue with NASA. I don't doubt it, just curious.I'm pretty sure there is no source.
And I'm pretty sure that statement came right from Max Vozoff's (Dragon programme manager) mouth, although I cannot dig up a reference now.
"Shotwell: Dragon designed to be reusable, but NASA wants a new Dragon for each mission. SpaceX planning to use old ones for DragonLab."
Quote from: Nate_Trost on 02/20/2010 08:39 pmOver the next four years, SpaceX needs to build fifteen Falcon 9s and fifteen Dragons for COTS and CRS alone, Wow...when you put it like that, you realize that's 150 Merlin's, or just short of one a week!
Over the next four years, SpaceX needs to build fifteen Falcon 9s and fifteen Dragons for COTS and CRS alone,
Quote from: Robotbeat on 02/20/2010 09:23 pmQuote from: William Barton on 02/20/2010 09:11 pmQuote from: ugordan on 02/20/2010 08:52 pmNASA does. They cannot reuse flown Dragons for ISS resupply. SpaceX hence plans to refly them as DragonLabs.What's the source for that "cannot resuse" issue with NASA. I don't doubt it, just curious.I'm pretty sure there is no source. And I'm pretty sure that statement came right from Max Vozoff's (Dragon programme manager) mouth, although I cannot dig up a reference now.
Quote from: Nate_Trost on 02/20/2010 08:39 pmOver the next four years, SpaceX needs to build fifteen Falcon 9s and fifteen Dragons for COTS and CRS alone, But where did all the planned Falcon 1 launches go?There are only three Falcon 1e flights on the manifest now. Does anyone have an old copy of the manifest for comparison?
Can't remember the story behind MDA
Quote from: SpacexULA on 02/20/2010 11:59 pmCan't remember the story behind MDAIt's now listed under F9 2011 for some reason.
I fear that an entirely reasonable partial failure of this launch could be used as an excuse to keep POR, and not use commercially purchased HSF.
As well it should! It is extremely foolish and irresponsible policy that would have us throw away a proven capability in favor of something that hasn't even begun testing. We have invested too much in ISS, which needs support now, to put that investment at risk. Personally I'm holding out hope for a limited shuttle extension, while these commercial providers prove themselves.
I really wish there was some way for ULA to be the flag bearer for commercial space instead of SpaceX. Atlas 5 is the much safer and more likely replacement for the shuttle than any SpaceX hardware in the next decade.
Quote from: SpacexULA on 02/21/2010 03:40 amI really wish there was some way for ULA to be the flag bearer for commercial space instead of SpaceX. Atlas 5 is the much safer and more likely replacement for the shuttle than any SpaceX hardware in the next decade.Some suggest that RD-180 operates on the edge of its safety margins and that it's only a matter of time before a combustion chamber fails. Merlin is a comparatively conservative design, and F9 has better engine-out capabilities. Of course, there are several arguments on the other side, but I'm just playing devil's advocate.
Quote from: SpacexULA on 02/21/2010 03:40 amI really wish there was some way for ULA to be the flag bearer for commercial space instead of SpaceX. Atlas 5 is the much safer and more likely replacement for the shuttle than any SpaceX hardware in the next decade.Some suggest that RD-180 operates on the edge of its safety margins and that it's only a matter of time before a combustion chamber fails. Merlin is a comparatively conservative design, and F9 has better engine-out capabilities.
http://articles.orlandosentinel.com/2010-02-16/news/os-spacex-rocket-launch-20100216_1_spacex-falcon-two-stage-rocket-international-space-station"CAPE CANAVERAL — Sometime next month, if all goes well, a 154-foot-tall white rocket will rise from a launchpad at Cape Canaveral Air Force Station in a crucial test of the ambitions of upstart space company SpaceX —- and of President Barack Obama's new policy for NASA."I really hate to see so much riding on the 1st test of a Rocket. I fear that an entirely reasonable partial failure of this launch could be used as an excuse to keep POR, and not use commercially purchased HSF.