I didn’t pay much attention to Northrop Grumman in this competition, and am surprised they won. But, it does make sense.The big surprise is that Sierra Nevada lost.
Nanoracks press release:https://nanoracks.com/nanoracks-voyager-space-and-lockheed-martin-awarded-nasa-contract/
Quote from: Alvian@IDN on 12/02/2021 09:01 pmQuote from: Robotical on 12/02/2021 08:46 pmAssuming SpaceX didn't tender a proposal, it looks like they're content to provide crew servicing (which makes sense when you have the only currently operational crewed vehicle). Sierra Nevada now has a use case for crewed Dreamchaser too! Except they did, but tbf didn't expect to win...Will SpaceX still have a chance like SNC did in ComCrew, when the phase 2 will arrive?While additional money for Starship would have been nice for them, they'll be able to get any data they'd have gotten from a dedicated station by performing crew servicing anyway.
Quote from: Robotical on 12/02/2021 08:46 pmAssuming SpaceX didn't tender a proposal, it looks like they're content to provide crew servicing (which makes sense when you have the only currently operational crewed vehicle). Sierra Nevada now has a use case for crewed Dreamchaser too! Except they did, but tbf didn't expect to win...Will SpaceX still have a chance like SNC did in ComCrew, when the phase 2 will arrive?
Assuming SpaceX didn't tender a proposal, it looks like they're content to provide crew servicing (which makes sense when you have the only currently operational crewed vehicle). Sierra Nevada now has a use case for crewed Dreamchaser too!
Quote from: yg1968 on 12/02/2021 08:48 pmNanoracks press release:https://nanoracks.com/nanoracks-voyager-space-and-lockheed-martin-awarded-nasa-contract/Quote from: Robotical on 12/02/2021 09:09 pmQuote from: Alvian@IDN on 12/02/2021 09:01 pmQuote from: Robotical on 12/02/2021 08:46 pmAssuming SpaceX didn't tender a proposal, it looks like they're content to provide crew servicing (which makes sense when you have the only currently operational crewed vehicle). Sierra Nevada now has a use case for crewed Dreamchaser too! Except they did, but tbf didn't expect to win...Will SpaceX still have a chance like SNC did in ComCrew, when the phase 2 will arrive?While additional money for Starship would have been nice for them, they'll be able to get any data they'd have gotten from a dedicated station by performing crew servicing anyway.Given most of costs involved in operating these stations is crew and cargo transport. SpaceX will profit from Dragon missions regardless of who wins.
But NASA funding will only cover a fraction of the development costs. During Thursday's call, none of the awardees would answer a question about the total costs to design, build, and launch their space stations. However, based on private interviews, a rough estimate may put the Nanoracks and Axiom space station concepts at a few billion dollars on the lower end, with Blue Origin's concept likely closer to $10 billion on the higher end. Northrop Grumman is probably somewhere in the middle. Even as they're proving their technical chops to NASA, the private companies must work to raise private funding to complete their projects.
McAlister said (at 15-16 minutes of the briefing) that the providers combined contribution is over 60% (so NASA's contribution is less than 40%). He said at 16-17 minutes that both Axiom and the other providers announced today are part of commercial LEO destinations' efforts. Axiom's award is the Commercial Destinations-ISS (or CDISS); the awards of today are the Commercial Destinations Free Flyer (CDFF). Angela Hart said that NASA wants at least one provider for the next phase (the services phase). NG said that its initial capability is for 4 astronauts but that it could be extended to 8 astronauts if the market is there. At 50-51 minutes, McAlister said that for Phase 1, NASA assumed that the Commercial LEO destination providers would be responsible for transportation of crew and cargo but that they haven't decided if that is what they will do for Phase 2 of the program (Phase 2 is the services phase). But he added that either way, NASA will require the transportation of crew to be a certified system and therefore the commercial crew program has a long life ahead of them. He added that by the time that these free flyers are ready, maybe there will be new certified systems (in addition to the ones from Boeing and SpaceX). At 52 minutes, Nanoracks and NG said that they haven't yet decided who will be their crew transportation partners, they have talked to both companies but no decision has been made. At 59 minutes, Robin Givens said that every agency agreed to extend the ISS to 2030 in September but that they have to go through their respective governments to approve it for it to be official. They are kind of waiting for the US to go first (i.e., getting approval). Starting to talk to the international partners as to how it's going to work for the commercial LEO destinations habitats. The companies said that they are talking to the space agencies but that the specifics will depend on how NASA wants to do it.
Quote from: yg1968 on 12/03/2021 01:45 amMcAlister said (at 15-16 minutes of the briefing) that the providers combined contribution is over 60% (so NASA's contribution is less than 40%). He said at 16-17 minutes that both Axiom and the other providers announced today are part of commercial LEO destinations' efforts. Axiom's award is the Commercial Destinations-ISS (or CDISS); the awards of today are the Commercial Destinations Free Flyer (CDFF). Angela Hart said that NASA wants at least one provider for the next phase (the services phase). NG said that its initial capability is for 4 astronauts but that it could be extended to 8 astronauts if the market is there. At 50-51 minutes, McAlister said that for Phase 1, NASA assumed that the Commercial LEO destination providers would be responsible for transportation of crew and cargo but that they haven't decided if that is what they will do for Phase 2 of the program (Phase 2 is the services phase). But he added that either way, NASA will require the transportation of crew to be a certified system and therefore the commercial crew program has a long life ahead of them. He added that by the time that these free flyers are ready, maybe there will be new certified systems (in addition to the ones from Boeing and SpaceX). At 52 minutes, Nanoracks and NG said that they haven't yet decided who will be their crew transportation partners, they have talked to both companies but no decision has been made. At 59 minutes, Robin Givens said that every agency agreed to extend the ISS to 2030 in September but that they have to go through their respective governments to approve it for it to be official. They are kind of waiting for the US to go first (i.e., getting approval). Starting to talk to the international partners as to how it's going to work for the commercial LEO destinations habitats. The companies said that they are talking to the space agencies but that the specifics will depend on how NASA wants to do it.Concerning what was said at that press conference, it got me thinking that NASA might be considering if it shouldn't bring its own commercial crew system (byoccs...) to the commercial habitats. The advantage of doing that is that it ensures that SpaceX doesn't become the only commercial crew provider. A second thing is that NASA said previously that it needs 2 astronauts full-time in LEO for these commercial habitats. If each stay on the commercial habitats is for a period of 6 months that means 4 astronauts per year. Presumably that means two commercial crew flights per year (as it is now). The other two non-NASA astronauts on these commercial crew missions could be internationals.
It seems to me that most of these commercial habitats will only have room for 4 astronauts, Starship might be overkill for 4 astronauts.
3.3.1.5 Ascent Abort ReliabilityThe CTS shall provide a pad and ascent abort system reliability of not less than 0.995 when an abort is initiated. [R.CTS.059]Rationale: The intent of this requirement is to design and develop a very robust abort system with high reliability of effective operation (1 failure in 200) when the system is activated. This requirement drives the system design such that the system will activate and function when needed to separate the crewed spacecraft from the launch vehicle. The scope of this requirement includes failure of the abort system to ignite and separate the spacecraft from the launch vehicle, failure to provide required thrust during the boost phase, and failure to separate from the spacecraft following the abort, if required. It is one of the inputs into the assessment of crew survivability once an abort is executed, which is determined by an integrated calculation of LOC/LOM.
I am not sure that Starship meets the requirements to be a commercial crew transportation system, namely this requirement on page 47 of the CCT-REQ-1130 requirements. Quote from: page 47 of the CCT-REQ-1130 requirements3.3.1.5 Ascent Abort ReliabilityThe CTS shall provide a pad and ascent abort system reliability of not less than 0.995 when an abort is initiated. [R.CTS.059]Rationale: The intent of this requirement is to design and develop a very robust abort system with high reliability of effective operation (1 failure in 200) when the system is activated. This requirement drives the system design such that the system will activate and function when needed to separate the crewed spacecraft from the launch vehicle. The scope of this requirement includes failure of the abort system to ignite and separate the spacecraft from the launch vehicle, failure to provide required thrust during the boost phase, and failure to separate from the spacecraft following the abort, if required. It is one of the inputs into the assessment of crew survivability once an abort is executed, which is determined by an integrated calculation of LOC/LOM.https://forum.nasaspaceflight.com/index.php?topic=26489.msg1650808#msg1650808
I am not sure that Starship meets the requirements to be a commercial crew transportation system...
Quote from: yg1968 on 12/05/2021 07:47 pmI am not sure that Starship meets the requirements to be a commercial crew transportation system...Today, no.But that doesn't mean that Starship CAN'T be certified in the future, because as of today there is only ONE certified transportation provider for crew (SpaceX Dragon 2), but we know that there are other potential providers in various phases of development - including potentially the Starship.
For the CCSTS round (the round after CCtCap), it is possible that NASA will change its certification requirements. I think that they should and hope that they do.
Quote from: yg1968 on 12/05/2021 09:56 pmFor the CCSTS round (the round after CCtCap), it is possible that NASA will change its certification requirements. I think that they should and hope that they do. Even if they did (and I don't think they will or should), they still require a LOC of 1/500 or better during reentry. Starship has an entirely unique, unproven entry profile, and I seriously doubt even the most optimistic statisticians will give it those odds within the next 5 years.