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  1.  
    Posted By: alsetalokinthe way they were doing it, by welding flat panels to an internal framework
    No. They have an IMCAR machine to produce 9m diameter rings using a single butt weld for closure, which rings are then butt-welded to one another. You can thus see how a spiral weld is superior. Elon has critiqued this in the past because he wants variable thickness stainless and saw no way to get 'er done with a spiral technique. The above scheme seems to address this. I am not convinced yet.

    Anent Starship design, I had a little chat with our buddy Elon last night, purely out of the blue. I was watching SN1 at the launchpad - on the LabPadre chat stream - in case of a putative pressure test. We all like explosions, right?

    I was chatting about Deep Throttling (yeah) and the fact that they aren't getting much below 50% with the current Raptor incarnations. Worst case between Earth, Moon and Mars is a lunar landing with a lightly loaded Starship, even using just a single Raptor.

    Elon chimed in that deep throttling is going to improve Real Soon Now - somewhere between SN6-10 it's aspirationally 20%, he said.

    I suspect for landings on the likes of Ceres, this won't suffice and thrusters will be necessary.
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      CommentAuthorAngus
    • CommentTimeFeb 26th 2020
     
    Taking the Mars payload mass as 15,000 kg (150 tonnes on earth) the weight at Ceres' surface would be 4000 N, which is 0.2% of the Raptor capability, so I suppose that's right.

    Anybody want to check that for me? I always get confused about weight and mass when we are dealing with metric tonnes.
  2.  
    Yabut the main point is appreciated. Good enough for me
  3.  
    Posted By: Andrew PalfreymanThey have an IMCAR machine to produce 9m diameter rings using a single butt weld for closure, which rings are then butt-welded to one another.


    Oh. I was just going by what I saw a month or so ago, when they were welding panels to some internal framework. Before it buckled.
  4.  
    Circumferential pucker
  5.  
    I love it when you talk dirty
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      CommentAuthorgoatcheez
    • CommentTimeFeb 27th 2020
     
    China's groundbreaking lunar rover found nearly 40 feet of dust on the far side of the moon

    https://www.businessinsider.com/china-lunar-rover-found-thick-dust-on-moon-far-side-2020-2

    We should have never fired that Korean housekeeper, nor chauffeur, nor tutor . . .
  6.  
    No wonder there's a lump in the rug.

    At least it's not a parakeet.
    •  
      CommentAuthorgoatcheez
    • CommentTimeFeb 27th 2020
     
    It's not dead. It's sleeping.
    • CommentAuthorAsterix
    • CommentTimeFeb 27th 2020
     
    Pinin' for the fjords...
    •  
      CommentAuthorgoatcheez
    • CommentTimeFeb 27th 2020
     
    Slartibartfast.
  7.  
    •  
      CommentAuthoraber0der
    • CommentTimeFeb 29th 2020
     
    •  
      CommentAuthorAngus
    • CommentTimeFeb 29th 2020 edited
     
    Ouch!!!!
    Wind?

    ETA
    Oh.
    •  
      CommentAuthorTrim
    • CommentTimeFeb 29th 2020
     
    Was that supposed to happen?
    •  
      CommentAuthorTrim
    • CommentTimeFeb 29th 2020
     
    Hopefully no Coronavirus there.

    Parallel universes exist and we will soon explore them, physicist says.

    https://www.dailystar.co.uk/news/world-news/parallel-universes-exist-soon-explore-21559440
    • CommentAuthorAsterix
    • CommentTimeFeb 29th 2020
     
    Posted By: TrimHopefully no Coronavirus there.

    Parallel universes exist and we will soon explore them, physicist says.

    https://www.dailystar.co.uk/news/world-news/parallel-universes-exist-soon-explore-21559440


    I prefer the perpendicular ones.
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      CommentAuthoralsetalokin
    • CommentTimeFeb 29th 2020 edited
     
    Posted By: TrimWas that supposed to happen?

    Yes. It's all part of the spectacle.

    You cannot keep liquid nitrogen in a sealed vessel. Look at a phase diagram.
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      CommentAuthorgoatcheez
    • CommentTimeFeb 29th 2020
     
    Isn't that the second Starship to self emulate?
    • CommentAuthorAsterix
    • CommentTimeMar 1st 2020
     
    Now there's a usage that I'm not familiar with.

    Perhaps you meant self-immolate?