It [Dragon] will be used for cargo, so cost savings would result from shared use for crew - presuming significant crew-cargo commonality which is not a given.My view differs, Talk is a brand new Dragon is needed so back to square one.
joekThe concept of a DTEC phase is dead. That means that awarding another contract, that includes parts for development, testing, evaluation and certification is dead.
yg1968 Define for me what you mean by an onerous certification. I have a very specific view, but I am curious as to what you think that means and how you define it.
Certification Contract Approaches under consideration• [1- extensive certification phase] “DTEC” Concept: All activities related to final hardwaredevelopment, testing, evaluation, and certification are under thecontract.• [2- lite certification phase] “Certification” Concept: Reduced scope, as compared to DTEC.Assumes final hardware development, integration, and industrycertification activities for non-NASA missions occur outside thecontract. Primary effort is safety assessment and verification ofNASA certification requirements. Could involve data buys, directedtesting, and limited hardware integration (e.g., docking system).
I've seen pics of astronauts checking out the Dragon mock-up (twice, I think), and we've been told that they've given feedback on it. Can we assume that they have done or will do something similar for CST-100, Dreamchaser, and Blue Origin's biconic vehicle. Does the situation regarding proprietory information mean that we cannot know anything about the astronauts opinions thus far, and also will we ever know? Can the companies release any of that if they felt it was in their interest to do so? I'm talking about the actual sessions at the facilities, not the statements made by ISS crew when inside the cargo Dragon. Oh, to be a fly on the wall...
Go4TLI - the reason for the categorization is very straight forward - it will determine the type of contracting instrument for each phase. As per the Wolf letter, there is the CCiCAP phase, which has all of the development, and is done under SAA options. And there is the certification phase, which will be done under FAR. However, what part of FAR it will be done under has not been formally determined. It could be done under FAR part 12 (which is where CRS is being done) or it could be done under FAR part 35 (which is where Orion is being done)
Quote from: Political Hack Wannabe on 06/10/2012 01:26 amGo4TLI - the reason for the categorization is very straight forward - it will determine the type of contracting instrument for each phase. As per the Wolf letter, there is the CCiCAP phase, which has all of the development, and is done under SAA options. And there is the certification phase, which will be done under FAR. However, what part of FAR it will be done under has not been formally determined. It could be done under FAR part 12 (which is where CRS is being done) or it could be done under FAR part 35 (which is where Orion is being done)You're quite missing my point. Engineering and developing a spacecraft is not centered around a contract mechanism. Engineering and development is planned to bring something into creation and operations. The contract mechanism is simply a vehicle for that. For example, if NASA said they wanted to start operations tomorrow and were prepared to issue a contract for that, clearly they are several steps ahead in the overall engineering process. The contract mechanism or what they call it does not change that.
Quote from: PeterAlt on 06/09/2012 02:07 amI've just formulated a new opinion. If the budget situation forces NASA to choose to keep either DC or CST-100, I think the wise choice would be DC. While Boeing may be further along, at the current pace of progress, SNC would probably make it to the finish line before Boeing does. Besides, DC delivers much more capability that CST-100. I would also reserve a token amount of funds to enlist Boeing to the team in an advisory role, lending its experience and expertise to an otherwise inexperienced SNC.What pace do you believe Boeing is at? Boeing is also on the SNC Team already.
I've just formulated a new opinion. If the budget situation forces NASA to choose to keep either DC or CST-100, I think the wise choice would be DC. While Boeing may be further along, at the current pace of progress, SNC would probably make it to the finish line before Boeing does. Besides, DC delivers much more capability that CST-100. I would also reserve a token amount of funds to enlist Boeing to the team in an advisory role, lending its experience and expertise to an otherwise inexperienced SNC.
Does the situation regarding proprietory information mean that we cannot know anything about the astronauts opinions thus far, and also will we ever know? Can the companies release any of that if they felt it was in their interest to do so?
Quote from: Go4TLI on 06/10/2012 04:51 amQuote from: Political Hack Wannabe on 06/10/2012 01:26 amGo4TLI - the reason for the categorization is very straight forward - it will determine the type of contracting instrument for each phase. As per the Wolf letter, there is the CCiCAP phase, which has all of the development, and is done under SAA options. And there is the certification phase, which will be done under FAR. However, what part of FAR it will be done under has not been formally determined. It could be done under FAR part 12 (which is where CRS is being done) or it could be done under FAR part 35 (which is where Orion is being done)You're quite missing my point. Engineering and developing a spacecraft is not centered around a contract mechanism. Engineering and development is planned to bring something into creation and operations. The contract mechanism is simply a vehicle for that. For example, if NASA said they wanted to start operations tomorrow and were prepared to issue a contract for that, clearly they are several steps ahead in the overall engineering process. The contract mechanism or what they call it does not change that. Here is the problem - you assume that it is a one way street - that engineering and development flow down, and force the hand of the contracting mechanism. But I can tell you this is not a one way street - the contracting mechanism can heavily influence how things get developed and engineered. For example, does the contracting mechanism require the commercial company to change any issue in the design as NASA specifies? Or is NASA required to negotiate on the issues of design changes? Also, who retains ownership of the actual vehicle? And so on. The point I am getting at (of which no doubt is going to drive more than a few engineers crazy) is that part of the issue is that the bureaucrats and lawyers and bean-counters are going to be playing a role in the process of development as well. To put it bluntly, the last sentence is incorrect.
I'm not sure why people are trying to place everything into categories. Development testing, simulation, etc and evaluation of that data is happening now in many cases....It is much too dificult and time consuming to design, develop, test and certify a spacecraft around arbitrary NASA award titles.
The contract does not impact how the vehicle is engineered. Requirement documents do that. Contract methods specify deliverables (paper work), finanical transactions, etc. Contracts also almost always specify what requirements documents the provider is to live by in their bid for the work. However in this case it would be highly illogical for NASA to specify all kinds of new requirements, potentially invalidating the investment they made to this point.
Yes, but again, it's not a question of NASA specifying new requirements. NASA can not legally levy any program-specific requirements* under an SAA. It may be highly illogical, but them's the rules.* A clumsy way to describe the constraint, but the best I can do at the moment.
Yes they can and they have, hence the volumes of requirements currently out there. What they cannot do under an SAA is verify compliance, i.e. paperwork. This takes me directly to the situation I described above. NASA still has insight to all of it.
Quote from: darkenfast on 06/10/2012 04:00 amI've seen pics of astronauts checking out the Dragon mock-up (twice, I think), and we've been told that they've given feedback on it. Can we assume that they have done or will do something similar for CST-100, Dreamchaser, and Blue Origin's biconic vehicle. Does the situation regarding proprietory information mean that we cannot know anything about the astronauts opinions thus far, and also will we ever know? Can the companies release any of that if they felt it was in their interest to do so? I'm talking about the actual sessions at the facilities, not the statements made by ISS crew when inside the cargo Dragon. Oh, to be a fly on the wall...One of the milestones for Boeing during CCDEV-1 was delivery of a mockup of CST-100 (the same mockup that has been displayed at several space conventions). They went through at least one round of evaluations and input from the crew office. Some modification of the CST-100 mockup was done during the second phase based on evolving designs. The companies can release the information at their prerogative, but I would not think it would be in their interest. Most of the comments were on the basis of optimizing the usability of the crew systems.
As a research tool A fly off (NASA style) should be done.1) NASA has plenty of empty rooms2) All mockups of the current entrants must setup a display for inspection3) Anyone (only) current, past or future from the astronaut corps can participate in confidentially or open as they wish.4) Two documents will be filled out:A) Q&A each astronaut can fill out for each entrantB) Closed ballot box 1st choice, 2nd choice 3rd choice.5) Information should be compiled into reports and made public.A) Compiled Q&A for each of the entrants provided to improve their product. Full Compiled (all entrants) kept confidential by NASA for review until announment of winners. B) Closed ballot results are made public after the final count.
yg1968 - That was under FAR part 35And its not about verification of requirements, or forced requirements. What NASA can't do is CHANGE requirements without negotiations from the company.