Isn't some of the tank made in Japan for Centaur? or is that some of the Delta tanks?
Quote from: Go4TLI on 08/03/2012 01:02 amQuote from: robertross on 08/03/2012 12:56 amIf true, HUGELY happy ATK didn't get the award, that's my main statement.Let's make it happen! The ISS needs this capabilityI don't know why anyone would say that. All of them brought something to the tableYep, Liberty would have had the largest payload for a man rated vehicle but the majority of enthusiasts just can't get past their ATK hate.
Quote from: robertross on 08/03/2012 12:56 amIf true, HUGELY happy ATK didn't get the award, that's my main statement.Let's make it happen! The ISS needs this capabilityI don't know why anyone would say that. All of them brought something to the table
If true, HUGELY happy ATK didn't get the award, that's my main statement.Let's make it happen! The ISS needs this capability
A complete system service contract hardware design and operations cannot be manipulated by politics as much as a buy the parts and then contract a separate integration contract (such as SLS), it’s an all or nothing proposition to lawmakers. They can influence through ties with corporations in their state or the total budget for the service but not like they have done on SLS.In this contracting situation the cheaper operational system will win out because low funding will cause the choosing of the low cost provider. But that being said there has to be multiple competing providers otherwise your back to the current EELV model of part commercial part direct control and the associated high costs.In a BTW about RL-10 manufacture: the engine regen cooling tubes are hand bent on wooden frames that were made in the sixties (from Gen Shelton’s comments to Congress as reported in an article in the Air Force magazine http://www.airforce-magazine.com/MagazineArchive/Pages/2012/August%202012/0812Launchers.aspx). Talk about ancient manufacture techniques and the associated costs and possibilities for manufacturing defects is high adding additional costs for manufacture quality assurance. The AF is considering forcing a major engine upgrade to using modern manufacturing techniques, essentially a new engine with 0 history imperiling the Atlas and Delta upper stage historical base used to show the reliability of the LV’s. ULA is currently considering a totally new engine XCOR’s 20klbf LH2 engine they are developing for the Lynx which would be a man rated engine (not necessarily official NASA or DOD certification just FAA).
Quote from: oldAtlas_Eguy on 08/06/2012 03:24 pmA complete system service contract hardware design and operations cannot be manipulated by politics as much as a buy the parts and then contract a separate integration contract (such as SLS), it’s an all or nothing proposition to lawmakers. They can influence through ties with corporations in their state or the total budget for the service but not like they have done on SLS.In this contracting situation the cheaper operational system will win out because low funding will cause the choosing of the low cost provider. But that being said there has to be multiple competing providers otherwise your back to the current EELV model of part commercial part direct control and the associated high costs.In a BTW about RL-10 manufacture: the engine regen cooling tubes are hand bent on wooden frames that were made in the sixties (from Gen Shelton’s comments to Congress as reported in an article in the Air Force magazine http://www.airforce-magazine.com/MagazineArchive/Pages/2012/August%202012/0812Launchers.aspx). Talk about ancient manufacture techniques and the associated costs and possibilities for manufacturing defects is high adding additional costs for manufacture quality assurance. The AF is considering forcing a major engine upgrade to using modern manufacturing techniques, essentially a new engine with 0 history imperiling the Atlas and Delta upper stage historical base used to show the reliability of the LV’s. ULA is currently considering a totally new engine XCOR’s 20klbf LH2 engine they are developing for the Lynx which would be a man rated engine (not necessarily official NASA or DOD certification just FAA).Some very good info in that : http://www.airforce-magazine.com/MagazineArchive/Documents/2012/August%202012/0812launchers.pdfthe purchase of an automated tube bender would fix that. Remember seeing video in the spaceX threads.
Quote from: Prober on 08/06/2012 04:30 pmQuote from: oldAtlas_Eguy on 08/06/2012 03:24 pmA complete system service contract hardware design and operations cannot be manipulated by politics as much as a buy the parts and then contract a separate integration contract (such as SLS), it’s an all or nothing proposition to lawmakers. They can influence through ties with corporations in their state or the total budget for the service but not like they have done on SLS.In this contracting situation the cheaper operational system will win out because low funding will cause the choosing of the low cost provider. But that being said there has to be multiple competing providers otherwise your back to the current EELV model of part commercial part direct control and the associated high costs.In a BTW about RL-10 manufacture: the engine regen cooling tubes are hand bent on wooden frames that were made in the sixties (from Gen Shelton’s comments to Congress as reported in an article in the Air Force magazine http://www.airforce-magazine.com/MagazineArchive/Pages/2012/August%202012/0812Launchers.aspx). Talk about ancient manufacture techniques and the associated costs and possibilities for manufacturing defects is high adding additional costs for manufacture quality assurance. The AF is considering forcing a major engine upgrade to using modern manufacturing techniques, essentially a new engine with 0 history imperiling the Atlas and Delta upper stage historical base used to show the reliability of the LV’s. ULA is currently considering a totally new engine XCOR’s 20klbf LH2 engine they are developing for the Lynx which would be a man rated engine (not necessarily official NASA or DOD certification just FAA).Some very good info in that : http://www.airforce-magazine.com/MagazineArchive/Documents/2012/August%202012/0812launchers.pdfthe purchase of an automated tube bender would fix that. Remember seeing video in the spaceX threads.Yes, his comments to Congress made it sound as if the major cause of cost growths and the costs in general was due to the RL-10.
There is only going to be one final winner.
Quote from: Robotbeat on 08/05/2012 10:11 pmIt is one of commercial crew's primary purposes to keep redundant access so that American HSF capability need never again have a gap [...]. If you have just one provider, it's just a matter of time before there's another gap.Hmm. It may be easy to forget, but there is a plan for a non-commercial system that would provide American HSF capability.
It is one of commercial crew's primary purposes to keep redundant access so that American HSF capability need never again have a gap [...]. If you have just one provider, it's just a matter of time before there's another gap.
Quote from: jongoff on 08/06/2012 08:59 pmQuote from: sdsds on 08/05/2012 10:29 pmQuote from: Robotbeat on 08/05/2012 10:11 pmIt is one of commercial crew's primary purposes to keep redundant access so that American HSF capability need never again have a gap [...]. If you have just one provider, it's just a matter of time before there's another gap.Hmm. It may be easy to forget, but there is a plan for a non-commercial system that would provide American HSF capability.At a pricepoint a lot higher than having two commercial crew systems, especially if those commercial crew systems end up being the ones that get the commercial cargo for CRS round 2...~JonIf the purpose is merely to have redundant access in a contingency situation, the pricepoint is not necessarily a big drawback as long as the redundant system is put to good use nominally (i.e. BEO).
Quote from: sdsds on 08/05/2012 10:29 pmQuote from: Robotbeat on 08/05/2012 10:11 pmIt is one of commercial crew's primary purposes to keep redundant access so that American HSF capability need never again have a gap [...]. If you have just one provider, it's just a matter of time before there's another gap.Hmm. It may be easy to forget, but there is a plan for a non-commercial system that would provide American HSF capability.At a pricepoint a lot higher than having two commercial crew systems, especially if those commercial crew systems end up being the ones that get the commercial cargo for CRS round 2...~Jon
In any event, the point of having two commercial crew providers is not just for redundancy pruposes, it's also to have competition between the two.
Competition in what way? If you have only two and you have requirements for two then competition is a moot point. If we fly to ISS twice a year as is in the baseline, then the "winner" maybe gets both flights. However, the "loser" still gets paid by NASA to keep their workforce, logistics chain, etc current even though they are not used because their capability is required.
pixie dust
Quote from: QuantumG on 08/07/2012 12:35 ampixie dustAlso known as, no one company has a monopoly on the service, which means no one company can call the shots, or fail and cause a service outage... are we really arguing whether it's better to have one provider or two?
Quote from: yg1968 on 08/06/2012 09:37 pmIn any event, the point of having two commercial crew providers is not just for redundancy pruposes, it's also to have competition between the two. Competition in what way? If you have only two and you have requirements for two then competition is a moot point. If we fly to ISS twice a year as is in the baseline, then the "winner" maybe gets both flights. However, the "loser" still gets paid by NASA to keep their workforce, logistics chain, etc current even though they are not used because their capability is required.
Quote from: Go4TLI on 08/06/2012 11:38 pmQuote from: yg1968 on 08/06/2012 09:37 pmIn any event, the point of having two commercial crew providers is not just for redundancy pruposes, it's also to have competition between the two. Competition in what way? If you have only two and you have requirements for two then competition is a moot point. If we fly to ISS twice a year as is in the baseline, then the "winner" maybe gets both flights. However, the "loser" still gets paid by NASA to keep their workforce, logistics chain, etc current even though they are not used because their capability is required. You wouldn't necessarily have a requirement for two. Ideally, you want more than one but if only one proposal is reasonable, you then only go with that one. That is why it's important to keep three commercial crew companies until you award a services contract in 2014.