I was thinking the same thing Orion and the EDS would be the last parts to launch not just on time frame constraints but also due to propellant boil off on the EDS.But SLS Block II probably could lift everything for a flyby mission in one go.Quote from: the_other_Doug on 12/24/2014 08:55 amThis is where I think you use other launch vehicles in addition to SLS. Since you can only launch one SLS in the short timeframe you have to get all of the elements into LEO prior to your EDS burn, I'd launch the hab and consumables on one or two EELVs (like F9H and/or D-IVH) and then launch your crew (in an Orion) and the EDS on the SLS.You could even use a manned Dragon or CST-100 or Dreamchaser to check out and assemble the hab and consumables modules before committing the SLS to launch.So, I see a lot of work for everyone in any BLEO mission...
This is where I think you use other launch vehicles in addition to SLS. Since you can only launch one SLS in the short timeframe you have to get all of the elements into LEO prior to your EDS burn, I'd launch the hab and consumables on one or two EELVs (like F9H and/or D-IVH) and then launch your crew (in an Orion) and the EDS on the SLS.You could even use a manned Dragon or CST-100 or Dreamchaser to check out and assemble the hab and consumables modules before committing the SLS to launch.So, I see a lot of work for everyone in any BLEO mission...
Quote from: Vultur on 12/24/2014 04:18 amQuote from: Patchouli on 12/23/2014 11:32 pmThe bare minimum for a flyby would be an Orion plus a habitat module similar in capability to a DOS station module such as a BA330 or DSH.Though even Orion plus Skylab II would only be about 59,000kg for a crewed planetary flyby mission this is very reasonable.It might not have to be that big, especially if you did 2 people like Inspiration Mars - BA330 is huge! (Close to Skylab size).A Sundancer or a Russian DOS or Mir core would be big enough for such a small crew but Bigelow decided to skip Sundancer for the BA330 and the latter may not be possible in the present political environment.
Quote from: Patchouli on 12/23/2014 11:32 pmThe bare minimum for a flyby would be an Orion plus a habitat module similar in capability to a DOS station module such as a BA330 or DSH.Though even Orion plus Skylab II would only be about 59,000kg for a crewed planetary flyby mission this is very reasonable.It might not have to be that big, especially if you did 2 people like Inspiration Mars - BA330 is huge! (Close to Skylab size).
The bare minimum for a flyby would be an Orion plus a habitat module similar in capability to a DOS station module such as a BA330 or DSH.Though even Orion plus Skylab II would only be about 59,000kg for a crewed planetary flyby mission this is very reasonable.