Actually, I think just the Authorized spending amounts expire in 2013, but not the policy set in the Act.
Quote from: Chris Bergin on 04/14/2011 10:42 pmQuote from: 51D Mascot on 04/14/2011 10:25 pmQuote from: simonbp on 04/14/2011 09:28 pmQuote from: Downix on 04/14/2011 09:21 pmYou presume a lot.I presume nothing. The current Appropriations bill calls for initial capacity of SLS to be 130 tonnes. That rules out anything short of a full-up 5/5 with an upper stage. In other words, the original Ares V. It would be great if they built something smaller, but that simply doesn't fit the bill, literally.The word "initial" does not appear in the final adopted bill. There's a reason for that.Some people are going around in circles. Let's sort this out once and for all 1) The law is NASA must have a 130mt SLS by 2016.2) The law is NASA must eventually have a 130mt SLS, Block 0 70mt by 2016 satisfies this.Is it 1 or 2? Only 51D can respond to this.2 is the case, at least up to the comma. The actually capability of the "core elements" referenced in the law as being targeted for "contingent use" by the end of 2016, is yet to be seen based on the selected design. That is also the understanding of appropriations staff I have spoken to as late as this evening. There is NO requirement or expectation for a 130-ton capable complete vehicle by the end of 2016. Period. Not now, not in PL 111-216, not in anything I see downstream in finalizing FY 2012 funding.
Quote from: 51D Mascot on 04/14/2011 10:25 pmQuote from: simonbp on 04/14/2011 09:28 pmQuote from: Downix on 04/14/2011 09:21 pmYou presume a lot.I presume nothing. The current Appropriations bill calls for initial capacity of SLS to be 130 tonnes. That rules out anything short of a full-up 5/5 with an upper stage. In other words, the original Ares V. It would be great if they built something smaller, but that simply doesn't fit the bill, literally.The word "initial" does not appear in the final adopted bill. There's a reason for that.Some people are going around in circles. Let's sort this out once and for all 1) The law is NASA must have a 130mt SLS by 2016.2) The law is NASA must eventually have a 130mt SLS, Block 0 70mt by 2016 satisfies this.Is it 1 or 2? Only 51D can respond to this.
Quote from: simonbp on 04/14/2011 09:28 pmQuote from: Downix on 04/14/2011 09:21 pmYou presume a lot.I presume nothing. The current Appropriations bill calls for initial capacity of SLS to be 130 tonnes. That rules out anything short of a full-up 5/5 with an upper stage. In other words, the original Ares V. It would be great if they built something smaller, but that simply doesn't fit the bill, literally.The word "initial" does not appear in the final adopted bill. There's a reason for that.
Quote from: Downix on 04/14/2011 09:21 pmYou presume a lot.I presume nothing. The current Appropriations bill calls for initial capacity of SLS to be 130 tonnes. That rules out anything short of a full-up 5/5 with an upper stage. In other words, the original Ares V. It would be great if they built something smaller, but that simply doesn't fit the bill, literally.
You presume a lot.
Congress has implicitly agreed with the metric ton interpretation. The issue is decided.
It's really irresponsible of NASA to go with the metric interpretation. One could argue it's a dealer's choice, I guess, except for the fact that it's not: only one interpretation has at least a chance of coming in within the mandated schedule and budget.
[That metric vs. short tons] is not specifically spelled out [...] is unfortunate, but in the end, insignificant in that NASA's assumption of the capability requirement as being expressed in metric tons is not going to be challenged by anyone in the Congress that I am aware of
With the metric interpretation Congress will never see from NASA a design that uses 5 segment boosters, J-2X and (only) 4 SSME. Boeing published an LEO payload of 263,713 lbs. for that design. Congress won't ever see it because NASA will use the metric interpretation to eliminate the design from consideration before bringing Congress the remaining options.
Bolden & Cooke were BOTH on the stand and said IMPLICITELY that they used metric tons.
This is no longer anything like DIRECT (if it ever was considered DIRECT by those here for or against). I was holding out hope for the change back to short tons, but that's done for me.
Quote from: robetrossBolden & Cooke were BOTH on the stand and said IMPLICITELY that they used metric tons.Huh? So they didn't say it explicitly?
Quote from: 2552 on 04/14/2011 11:47 pmActually, I think just the Authorized spending amounts expire in 2013, but not the policy set in the Act.True but Congress is likely to pass another NASA Authorization bill in 2013 for FY2014 and beyond.
I am saying what I said..."that NASA's assumption of the capability requirement as being expressed in metric tons is not going to be challenged by anyone in the Congress that I am aware of...." "Congress" being what it is, I'm not going to make an unqualified absolute statement; it's an institution just full of surprises, hehe. I just think what I DO know about the "jurisdictionaly-relevant participants" makes me reasonably comfortable that this is not going to be an issue.
the heavy lift launch vehicle ... shall have an upper stage and other core elements developed simultaneously.
of the core elements and the upper stage should proceed in parallel subject to appropriations. Priority should be placed on the core elements with the goal for operational capability for the core elements not later than December 31, 2016.
The language passed today requires thatQuote from: Appropriationthe heavy lift launch vehicle ... shall have an upper stage and other core elements developed simultaneously.Last year's authorization, on the other hand, requires that developmentQuote from: Authorizationof the core elements and the upper stage should proceed in parallel subject to appropriations. Priority should be placed on the core elements with the goal for operational capability for the core elements not later than December 31, 2016.What's the difference between "simultaneously" (the appropriation) and "in parallel... with priority on the core elements"?
The legislation making $38.5 billion in cuts from domestic programs now goes to President Obama for his signature. He is expected to sign the bill into law Friday.
Quote from: 51D Mascot on 04/14/2011 07:43 pmI am saying what I said..."that NASA's assumption of the capability requirement as being expressed in metric tons is not going to be challenged by anyone in the Congress that I am aware of...." "Congress" being what it is, I'm not going to make an unqualified absolute statement; it's an institution just full of surprises, hehe. I just think what I DO know about the "jurisdictionaly-relevant participants" makes me reasonably comfortable that this is not going to be an issue.51D, Sorry, I have to make one final appeal for explanation on the metric/short ton question.Do you see what many here think that the metric interpretation will do to the SLS program, as I (and other) have described it previously? It rules out the possibility of DIRECT-like configuration that leverages Shuttle heritage and takes us right back to the Ares-V.Do you disagree with that conclusion?Or do you agree, but that is what Congress wants regardless?Or is there some other explanation?Sorry for the impertinence, but I just don't understand your position, especially considering your knowledge of the subject and your history of postings in all the various threads on this forum.I think that if SLS is to be successful, then the metric interpretation will have to yield to the reality of what can be accomplished with the given resources in the specified time.Thanks in advance for any answer you may provide. Your postings have been a valuable resource and provided a keen insight into the workings of our legislative bodies.Thanks,Mark S.
Quote from: Mark S on 04/15/2011 02:59 amthe metric interpretation will [rule] out the possibility of DIRECT-like configuration that leverages Shuttle heritage [...]Your postings have been a valuable resource and provided a keen insight into the workings of our legislative bodies.I am looking at a summary chart that shows a "Block-0-2016" variant, and the capability is shown as lifting MPCV to LEO on a 70 METRIC ton capacity vehicle. That tells me that a metric interpretation does NOT in fact rule out a shuttle-derived vehicle.
the metric interpretation will [rule] out the possibility of DIRECT-like configuration that leverages Shuttle heritage [...]Your postings have been a valuable resource and provided a keen insight into the workings of our legislative bodies.
Quote from: 51D Mascot on 04/15/2011 04:23 amQuote from: Mark S on 04/15/2011 02:59 amthe metric interpretation will [rule] out the possibility of DIRECT-like configuration that leverages Shuttle heritage [...]Your postings have been a valuable resource and provided a keen insight into the workings of our legislative bodies.I am looking at a summary chart that shows a "Block-0-2016" variant, and the capability is shown as lifting MPCV to LEO on a 70[/i][/u] METRIC ton capacity vehicle. That tells me that a metric interpretation does NOT in fact rule out a shuttle-derived vehicle.First: like Mark S said, your posts here are extremely valuable, as is the work you are doing out in the real world. Thank you!Second: analysts seem to agree about the "70 ton payload" vehicle with five segment boosters. DIRECT calculated J-130H as providing at least 176,977lb (80,275kg). The "metric" trouble only starts with the "130 ton payload" vehicle. No analyst has published details of an ascent trajectory that takes 130 metric tons to LEO using only four SSME. (Boeing has published a payload figure of approximately 120 metric tons, and has clearly done the analysis for it.)
Quote from: Mark S on 04/15/2011 02:59 amthe metric interpretation will [rule] out the possibility of DIRECT-like configuration that leverages Shuttle heritage [...]Your postings have been a valuable resource and provided a keen insight into the workings of our legislative bodies.I am looking at a summary chart that shows a "Block-0-2016" variant, and the capability is shown as lifting MPCV to LEO on a 70[/i][/u] METRIC ton capacity vehicle. That tells me that a metric interpretation does NOT in fact rule out a shuttle-derived vehicle.
... the issue for the Congress is the encouragement of shuttle-derived development as a near-term time and cost-savings feature that is intended to narrow the gap in US launch capability.
If NASA comes in and says they can get there only if there's no hard requirement for a metric measurement, then that would be fine.
The key focus and aim of the law is to have an evolvable system that has the ability to perform potential "interim missions" along the way to achieving an eventual full 130-ton-plus capability, maximizing the use of existing assets and design heritage.
The Congress is NOT going to get hung up on a dispute or difference between a metric versus short-ton threshold as a hard requirement if the end result meets that key objective of mission capability.
So it's immaterial to me, in that sense, what measurement system is used so long as the ability to perform that sort of potential interim mission capability by the end of 2016--or as close to it as possible--is achieved.
President Barack Obama is expected to sign legislation Friday afternoon funding the federal government for the remainder of the current fiscal year, according to a senior administration official.