Quote from: A_M_Swallow on 08/09/2012 08:51 pmThe Dream Chaser may end up on the Falcon 9, if only to ensure that Boeing+ULA behaves.Why? Dreamchaser could move to Falcon 9 if they choose to, but NASA can not tell Dreamchsaer it must use Falcon 9.
The Dream Chaser may end up on the Falcon 9, if only to ensure that Boeing+ULA behaves.
Quote from: pathfinder_01 on 08/09/2012 09:47 pmQuote from: A_M_Swallow on 08/09/2012 08:51 pmThe Dream Chaser may end up on the Falcon 9, if only to ensure that Boeing+ULA behaves.Why? Dreamchaser could move to Falcon 9 if they choose to, but NASA can not tell Dreamchsaer it must use Falcon 9. Dreamchaser could also move to Orbitals rocket if its working up to specs. That would be an interesting combo.
Quote from: baldusi on 08/09/2012 08:44 pmThat's a different problem. We don't know if they will go forward with full system certification for two contestants. But assuming they do with one, but both F9 and AV are HR, then they could do a new bid. I was stating this as a purely blanket statement. SpaceX won't go with Atlas V, and I highly doubt that Boeing would go with Falcon 9 after all the trouble of certifying the Atlas V. But, for example, if they get a 2017-2020 contract and the ISS gets an extension to 2025, who knows!The Dream Chaser may end up on the Falcon 9, if only to ensure that Boeing+ULA behaves.
That's a different problem. We don't know if they will go forward with full system certification for two contestants. But assuming they do with one, but both F9 and AV are HR, then they could do a new bid. I was stating this as a purely blanket statement. SpaceX won't go with Atlas V, and I highly doubt that Boeing would go with Falcon 9 after all the trouble of certifying the Atlas V. But, for example, if they get a 2017-2020 contract and the ISS gets an extension to 2025, who knows!
Quote from: baldusi on 08/09/2012 08:26 pmQuote from: yg1968 on 08/09/2012 08:24 pmQuote from: jongoff on 08/09/2012 06:50 pmQuote from: yg1968 on 08/09/2012 05:31 pmI was simply saying that it is one possibility. I am not saying that it will necessarely happen like that. NASA might also decide in 2014 to have only company for phase 2 of certification (and for the CCiCap optional milestones). But you can make up your own mind by looking at the source document at figure 2 on page 3 of the certification white paper:http://forum.nasaspaceflight.com/index.php?topic=29593.msg940089#msg940089I really hope they take two companies through certification. It just makes a lot more sense to combine Commercial Crew and Commercial Cargo for flight services, instead of downselecting to only one Commercial Crew provider while keeping two Commercial Cargo providers.~JonI agree with you. It would be nice to have both the Atlas V and the Falcon 9 human rated at the end of certification even if either SpaceX or Boeing/SNC doesn't end up getting a CTS contract. Having both certified should allow whoever wins to do a bid among the LV suppliers.But they are certifying an integrated solution. If you change LV supplier, do you need to certify again ? Boeing can't just switch from a P&W engine on a 7x7 to perhaps a Rolls Royce engine without some sort of certification tests, right ? How would this be different ?
Quote from: yg1968 on 08/09/2012 08:24 pmQuote from: jongoff on 08/09/2012 06:50 pmQuote from: yg1968 on 08/09/2012 05:31 pmI was simply saying that it is one possibility. I am not saying that it will necessarely happen like that. NASA might also decide in 2014 to have only company for phase 2 of certification (and for the CCiCap optional milestones). But you can make up your own mind by looking at the source document at figure 2 on page 3 of the certification white paper:http://forum.nasaspaceflight.com/index.php?topic=29593.msg940089#msg940089I really hope they take two companies through certification. It just makes a lot more sense to combine Commercial Crew and Commercial Cargo for flight services, instead of downselecting to only one Commercial Crew provider while keeping two Commercial Cargo providers.~JonI agree with you. It would be nice to have both the Atlas V and the Falcon 9 human rated at the end of certification even if either SpaceX or Boeing/SNC doesn't end up getting a CTS contract. Having both certified should allow whoever wins to do a bid among the LV suppliers.
Quote from: jongoff on 08/09/2012 06:50 pmQuote from: yg1968 on 08/09/2012 05:31 pmI was simply saying that it is one possibility. I am not saying that it will necessarely happen like that. NASA might also decide in 2014 to have only company for phase 2 of certification (and for the CCiCap optional milestones). But you can make up your own mind by looking at the source document at figure 2 on page 3 of the certification white paper:http://forum.nasaspaceflight.com/index.php?topic=29593.msg940089#msg940089I really hope they take two companies through certification. It just makes a lot more sense to combine Commercial Crew and Commercial Cargo for flight services, instead of downselecting to only one Commercial Crew provider while keeping two Commercial Cargo providers.~JonI agree with you. It would be nice to have both the Atlas V and the Falcon 9 human rated at the end of certification even if either SpaceX or Boeing/SNC doesn't end up getting a CTS contract.
Quote from: yg1968 on 08/09/2012 05:31 pmI was simply saying that it is one possibility. I am not saying that it will necessarely happen like that. NASA might also decide in 2014 to have only company for phase 2 of certification (and for the CCiCap optional milestones). But you can make up your own mind by looking at the source document at figure 2 on page 3 of the certification white paper:http://forum.nasaspaceflight.com/index.php?topic=29593.msg940089#msg940089I really hope they take two companies through certification. It just makes a lot more sense to combine Commercial Crew and Commercial Cargo for flight services, instead of downselecting to only one Commercial Crew provider while keeping two Commercial Cargo providers.~Jon
I was simply saying that it is one possibility. I am not saying that it will necessarely happen like that. NASA might also decide in 2014 to have only company for phase 2 of certification (and for the CCiCap optional milestones). But you can make up your own mind by looking at the source document at figure 2 on page 3 of the certification white paper:http://forum.nasaspaceflight.com/index.php?topic=29593.msg940089#msg940089
Quote from: Ronsmytheiii on 08/08/2012 11:04 pmQuote from: mmeijeri on 08/08/2012 10:45 pmSuch as Bigelow, who has said he won't commit until he has two competing suppliers.NASA is not obligated, or should, structure services to the benefit of a private entrepreneur. Bigelow is hardly an assured proposition, and as we have seen with EELV overestimating commercial requirements can have devastating effects.OTOH, there is benefit to NASA if they can order one flight per year from each of two providers, and someone like Bigelow provides additional demand to close their business cases.The unreliability of that demand is the issue, not the benefit if it were in place. It makes sense for NASA not to do anything to discourage other users, without actually supporting them - as long as it's cost-neutral. Though BEAM would be great if it goes ahead.Quote from: Ronsmytheiii on 08/08/2012 11:04 pmCrew vehicles may be able to carry cargo, but will be limited to certain kinds of goods, while efficiency is further decreased.Assuming the price of a flight is almost independent of the number of passengers then it makes sense to use mass and cubic that would otherwise go to waste, regardless of the implied inefficiency.Bulk supplies for a TP destination would presumably use CRS-type services, possibly sharing further costs with NASA.cheers, Martin
Quote from: mmeijeri on 08/08/2012 10:45 pmSuch as Bigelow, who has said he won't commit until he has two competing suppliers.NASA is not obligated, or should, structure services to the benefit of a private entrepreneur. Bigelow is hardly an assured proposition, and as we have seen with EELV overestimating commercial requirements can have devastating effects.
Such as Bigelow, who has said he won't commit until he has two competing suppliers.
Crew vehicles may be able to carry cargo, but will be limited to certain kinds of goods, while efficiency is further decreased.
The overhead of two companies will be too great (mission ops, launch services, docuemntation, certification...) everything. Looking at the cost profiles and what NASA funding levels will be it is not possible to carry 2 past iCAP unless 1) NASA gets a signifcant increase in budget (which won't happen IMO) or 2) or the schedule moves to the right.
Quote from: A_M_Swallow on 08/09/2012 08:51 pmQuote from: baldusi on 08/09/2012 08:44 pmThat's a different problem. We don't know if they will go forward with full system certification for two contestants. But assuming they do with one, but both F9 and AV are HR, then they could do a new bid. I was stating this as a purely blanket statement. SpaceX won't go with Atlas V, and I highly doubt that Boeing would go with Falcon 9 after all the trouble of certifying the Atlas V. But, for example, if they get a 2017-2020 contract and the ISS gets an extension to 2025, who knows!The Dream Chaser may end up on the Falcon 9, if only to ensure that Boeing+ULA behaves.That doesn't even make any sense.
Of course it makes sense. When trucking things having the tractor and the trailer made by different companies is normal practice. Capsules are payloads to the lv.
Quote from: erioladastra on 08/10/2012 03:20 amThe overhead of two companies will be too great (mission ops, launch services, docuemntation, certification...) everything. Looking at the cost profiles and what NASA funding levels will be it is not possible to carry 2 past iCAP unless 1) NASA gets a signifcant increase in budget (which won't happen IMO) or 2) or the schedule moves to the right.Err, that overhead would be the responsibility of the company not NASA and may be lower that anything NASA does internally. NASA would pay but they would be paying for services, not running it. From the looks of it Space X plans to use the same mission ops for manned as for cargo with the addition of a flight surgeon. ULA would be providing launch services to the rest and odds are they won't be hiring a lot of staff just to integrate a manned vs. unmanned vechile. Documentation is a fuzzy cost(it depends on what is documented and how). Certification is another fuzzy one.