SpaceX will be flying to the station with commercial cargo before the end of the year...as it stands now the STS 135 is in financial peril. Sky King
Quote from: EE Scott on 03/31/2011 06:54 pmQuote from: yg1968 on 03/31/2011 06:17 pmQuote from: EE Scott on 03/31/2011 06:04 pmQuote from: yg1968 on 03/31/2011 02:42 pmHere is an interview with Holdren and others explaining the reasons behind the NASA FY2012 Budget:http://www.spacenews.com/policy/110331-obama-administration-pushing-back-congressionally-mandated-rocket.htmlAnyone who has followed the SLS epic here on NSF needs to read this article.The cards are now on the table. No HLV decision let alone progress anytime soon if NASA has something to say about it. In my opinion, there is no other way to interpret the information in this article than NASA has no plans to even start on an HLV until at least 2013. They would take over a billion dollars next year just to plan for a possible HLV. This amazes me. The gauntlet has been thrown down by NASA and WH leadership. There is no 2016 in NASA's mind. That seems like it is not going to happen, no matter what the law says. I guess we are in for some extraordinary power struggles over the rest of this year.edit: Thanks yg for sharing thisI think Holdren was trying to explain why they needed less money for the SLS in FY2012. I am not sure that he was try to say that they will be dragging their feet as much as possible. Nevertheless, the procurement process can take a while as OV-106 has mentionned in prior posts. I think I was more surprised by Admin. Bolden's remarks than Mr. Holdren's. Here's a quote from the article linked above:QuoteHowever, Bolden said NASA does not expect to solicit industry proposals for the heavy-lift launch vehicle development for “at least a year.” He said the rocket and crew capsule programs must be “affordable, sustainable and realistic” and that NASA would seek outside cost estimates for the new architecture.So at least a year away, they will start the RFP process to begin development for the SLS. What kind of timeline is that? Shall we speculate on when an SLS would be operational using this initial timeline?Yes, I was surprised by that too. I am not sure what to make of it. I suppose that more money could be spent on Orion and the J-2X for the upper stage and less on the core of the HLV for the next year. But it is a surprising statement.
Quote from: yg1968 on 03/31/2011 06:17 pmQuote from: EE Scott on 03/31/2011 06:04 pmQuote from: yg1968 on 03/31/2011 02:42 pmHere is an interview with Holdren and others explaining the reasons behind the NASA FY2012 Budget:http://www.spacenews.com/policy/110331-obama-administration-pushing-back-congressionally-mandated-rocket.htmlAnyone who has followed the SLS epic here on NSF needs to read this article.The cards are now on the table. No HLV decision let alone progress anytime soon if NASA has something to say about it. In my opinion, there is no other way to interpret the information in this article than NASA has no plans to even start on an HLV until at least 2013. They would take over a billion dollars next year just to plan for a possible HLV. This amazes me. The gauntlet has been thrown down by NASA and WH leadership. There is no 2016 in NASA's mind. That seems like it is not going to happen, no matter what the law says. I guess we are in for some extraordinary power struggles over the rest of this year.edit: Thanks yg for sharing thisI think Holdren was trying to explain why they needed less money for the SLS in FY2012. I am not sure that he was try to say that they will be dragging their feet as much as possible. Nevertheless, the procurement process can take a while as OV-106 has mentionned in prior posts. I think I was more surprised by Admin. Bolden's remarks than Mr. Holdren's. Here's a quote from the article linked above:QuoteHowever, Bolden said NASA does not expect to solicit industry proposals for the heavy-lift launch vehicle development for “at least a year.” He said the rocket and crew capsule programs must be “affordable, sustainable and realistic” and that NASA would seek outside cost estimates for the new architecture.So at least a year away, they will start the RFP process to begin development for the SLS. What kind of timeline is that? Shall we speculate on when an SLS would be operational using this initial timeline?
Quote from: EE Scott on 03/31/2011 06:04 pmQuote from: yg1968 on 03/31/2011 02:42 pmHere is an interview with Holdren and others explaining the reasons behind the NASA FY2012 Budget:http://www.spacenews.com/policy/110331-obama-administration-pushing-back-congressionally-mandated-rocket.htmlAnyone who has followed the SLS epic here on NSF needs to read this article.The cards are now on the table. No HLV decision let alone progress anytime soon if NASA has something to say about it. In my opinion, there is no other way to interpret the information in this article than NASA has no plans to even start on an HLV until at least 2013. They would take over a billion dollars next year just to plan for a possible HLV. This amazes me. The gauntlet has been thrown down by NASA and WH leadership. There is no 2016 in NASA's mind. That seems like it is not going to happen, no matter what the law says. I guess we are in for some extraordinary power struggles over the rest of this year.edit: Thanks yg for sharing thisI think Holdren was trying to explain why they needed less money for the SLS in FY2012. I am not sure that he was try to say that they will be dragging their feet as much as possible. Nevertheless, the procurement process can take a while as OV-106 has mentionned in prior posts.
Quote from: yg1968 on 03/31/2011 02:42 pmHere is an interview with Holdren and others explaining the reasons behind the NASA FY2012 Budget:http://www.spacenews.com/policy/110331-obama-administration-pushing-back-congressionally-mandated-rocket.htmlAnyone who has followed the SLS epic here on NSF needs to read this article.The cards are now on the table. No HLV decision let alone progress anytime soon if NASA has something to say about it. In my opinion, there is no other way to interpret the information in this article than NASA has no plans to even start on an HLV until at least 2013. They would take over a billion dollars next year just to plan for a possible HLV. This amazes me. The gauntlet has been thrown down by NASA and WH leadership. There is no 2016 in NASA's mind. That seems like it is not going to happen, no matter what the law says. I guess we are in for some extraordinary power struggles over the rest of this year.edit: Thanks yg for sharing this
Here is an interview with Holdren and others explaining the reasons behind the NASA FY2012 Budget:http://www.spacenews.com/policy/110331-obama-administration-pushing-back-congressionally-mandated-rocket.html
However, Bolden said NASA does not expect to solicit industry proposals for the heavy-lift launch vehicle development for “at least a year.” He said the rocket and crew capsule programs must be “affordable, sustainable and realistic” and that NASA would seek outside cost estimates for the new architecture.
Quote from: yg1968 on 03/31/2011 07:14 pmQuote from: EE Scott on 03/31/2011 06:54 pmQuote from: yg1968 on 03/31/2011 06:17 pmQuote from: EE Scott on 03/31/2011 06:04 pmQuote from: yg1968 on 03/31/2011 02:42 pmHere is an interview with Holdren and others explaining the reasons behind the NASA FY2012 Budget:http://www.spacenews.com/policy/110331-obama-administration-pushing-back-congressionally-mandated-rocket.htmlAnyone who has followed the SLS epic here on NSF needs to read this article.The cards are now on the table. No HLV decision let alone progress anytime soon if NASA has something to say about it. In my opinion, there is no other way to interpret the information in this article than NASA has no plans to even start on an HLV until at least 2013. They would take over a billion dollars next year just to plan for a possible HLV. This amazes me. The gauntlet has been thrown down by NASA and WH leadership. There is no 2016 in NASA's mind. That seems like it is not going to happen, no matter what the law says. I guess we are in for some extraordinary power struggles over the rest of this year.edit: Thanks yg for sharing thisI think Holdren was trying to explain why they needed less money for the SLS in FY2012. I am not sure that he was try to say that they will be dragging their feet as much as possible. Nevertheless, the procurement process can take a while as OV-106 has mentionned in prior posts. I think I was more surprised by Admin. Bolden's remarks than Mr. Holdren's. Here's a quote from the article linked above:QuoteHowever, Bolden said NASA does not expect to solicit industry proposals for the heavy-lift launch vehicle development for “at least a year.” He said the rocket and crew capsule programs must be “affordable, sustainable and realistic” and that NASA would seek outside cost estimates for the new architecture.So at least a year away, they will start the RFP process to begin development for the SLS. What kind of timeline is that? Shall we speculate on when an SLS would be operational using this initial timeline?Yes, I was surprised by that too. I am not sure what to make of it. I suppose that more money could be spent on Orion and the J-2X for the upper stage and less on the core of the HLV for the next year. But it is a surprising statement. I wonder how senator Nelson is feeling right now? His bestest buddy is !@#$%^& all over his bipartisan Authorization.
...Going to take a heck of a lot of Dragon's to make up for what STS-135's got manifested.
Quote from: Chris Bergin on 03/31/2011 08:11 pm...Going to take a heck of a lot of Dragon's to make up for what STS-135's got manifested.BTW, just how much pressurized cargo is on STS-135?
Quote from: Robotbeat on 03/31/2011 08:45 pmQuote from: Chris Bergin on 03/31/2011 08:11 pm...Going to take a heck of a lot of Dragon's to make up for what STS-135's got manifested.BTW, just how much pressurized cargo is on STS-135?The plan is for the last shuttle flight/flights to equip the station for up to 2 years in case commercail cargo fails.
In metric tons?
{snip}Something has to come first, HLV or payload. You can argue chicken or egg all day long. Congress has decided chicken, so get on with it. Once progress has been made on SLS and capabilities have become more well defined, payloads can be designed to take advantage of it. Why design a 70 ton payload when you are not sure that NASA will ever even build a launcher? There needs to be commitment and progress on HLV before plans will be made to fully utilize it.
Quote from: Robotbeat on 03/31/2011 08:47 pmIn metric tons?Not listed but the MPLM can hold up to 8MT of cargo. It masses up to 13MT when filled.
Quote from: Mark S on 03/31/2011 06:59 pm{snip}Something has to come first, HLV or payload. You can argue chicken or egg all day long. Congress has decided chicken, so get on with it. Once progress has been made on SLS and capabilities have become more well defined, payloads can be designed to take advantage of it. Why design a 70 ton payload when you are not sure that NASA will ever even build a launcher? There needs to be commitment and progress on HLV before plans will be made to fully utilize it.I do not know of any 70 metric ton dry weight lunar landers planned in the next 20 years. Up to 24 mT can be launched on EELV. So until we go to Mars the extra heavy payloads are not there.
13 mT can be lifted by an EELV. Can a Dragon or Cygnus push 13 metric tons from LEO to the ISS?
...And you can't launch "dry" anything until you get in-space prop transfer perfected, and probably depots and long-term active cryo storage too. So you shouldn't talk like that's the simplest route because it's not.
Quote from: SkyKing on 03/31/2011 08:02 pmSpaceX will be flying to the station with commercial cargo before the end of the year...as it stands now the STS 135 is in financial peril. Sky KingAnd you better hope that's not the case, as much as "financial peril" appears to be overly dramatic.... or it would be a real problem for the $100 billion Space Station.To qualify that, you of course realize the massive difference between STS-135's capabilities and Dragon? (By the end of the year is not at all certain either. No decision on C2 and C3 combined, and C2's F9 engines/first stage are/is being troublesome).Going to take a heck of a lot of Dragon's to make up for what STS-135's got manifested.
Quote from: A_M_Swallow on 03/31/2011 09:09 pm13 mT can be lifted by an EELV. Can a Dragon or Cygnus push 13 metric tons from LEO to the ISS?No. Dragon only carries 6MT and Cygnus 2mT. However to put this in perspective Progress which has sustained the russians for decades with 3 person crews only carries 2.3MT of payload and some of that is propellant!
the 8 CRS Cygni will be 2mT. The other 6 are going to be 2.7mT. And I see no reason that NASA couldn't have ordered a larger Cygnus with an MPLM-sized volume (and full racks) that could launch on an Atlas 541 (or something similar). Also, Cygnus had/has an unpressurized option, but NASA was not interested.
Quote from: yg1968 on 03/31/2011 07:14 pmQuote from: EE Scott on 03/31/2011 06:54 pmQuote from: yg1968 on 03/31/2011 06:17 pmQuote from: EE Scott on 03/31/2011 06:04 pmQuote from: yg1968 on 03/31/2011 02:42 pmHere is an interview with Holdren and others explaining the reasons behind the NASA FY2012 Budget:http://www.spacenews.com/policy/110331-obama-administration-pushing-back-congressionally-mandated-rocket.htmlAnyone who has followed the SLS epic here on NSF needs to read this article.The cards are now on the table. No HLV decision let alone progress anytime soon if NASA has something to say about it. In my opinion, there is no other way to interpret the information in this article than NASA has no plans to even start on an HLV until at least 2013. They would take over a billion dollars next year just to plan for a possible HLV. This amazes me. The gauntlet has been thrown down by NASA and WH leadership. There is no 2016 in NASA's mind. That seems like it is not going to happen, no matter what the law says. I guess we are in for some extraordinary power struggles over the rest of this year.edit: Thanks yg for sharing thisI think Holdren was trying to explain why they needed less money for the SLS in FY2012. I am not sure that he was try to say that they will be dragging their feet as much as possible. Nevertheless, the procurement process can take a while as OV-106 has mentionned in prior posts. I think I was more surprised by Admin. Bolden's remarks than Mr. Holdren's. Here's a quote from the article linked above:QuoteHowever, Bolden said NASA does not expect to solicit industry proposals for the heavy-lift launch vehicle development for “at least a year.” He said the rocket and crew capsule programs must be “affordable, sustainable and realistic” and that NASA would seek outside cost estimates for the new architecture.So at least a year away, they will start the RFP process to begin development for the SLS. What kind of timeline is that? Shall we speculate on when an SLS would be operational using this initial timeline?Yes, I was surprised by that too. I am not sure what to make of it. I suppose that more money could be spent on Orion and the J-2X for the upper stage and less on the core of the HLV for the next year. But it is a surprising statement. One thing to remember--Bolden isn't exactly the most articulate person in the world. He's said many things in the past that were clearly incorrect, so I tend to take surprising comments from him with a grain of salt, unless there are other sources to back him up. ~Jon
Quote from: Chris Bergin on 03/31/2011 08:11 pm...Going to take a heck of a lot of Dragon's to make up for what STS-135's got manifested.BTW, just how much pressurized cargo is on STS-135? In kilograms?