Comment on Tragic Titan submersible’s $62 SanDisk memory card found undamaged at wreckage site

Daft_ish@lemmy.dbzer0.com ⁨4⁩ ⁨weeks⁩ ago

• floofloof@lemmy.ca ⁨4⁩ ⁨weeks⁩ ago

  The tragedy is that more of these rich people don’t test that belief against reality.

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  • Blackmist@feddit.uk ⁨3⁩ ⁨weeks⁩ ago

    At least two billionaires keep firing rockets into space as a hobby. It’s only a matter of time.

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    • adespoton@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

      But they put other people on those rockets, not themselves.

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      • Blackmist@feddit.uk ⁨3⁩ ⁨weeks⁩ ago

        Appeal to their vanity. Start saying how brave the astronauts are and make them celebrities. Give them all the credit. Don’t mention the funders at all.

        Next ones go up with a billionaire on board for sure.

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• BanMe@lemmy.world ⁨4⁩ ⁨weeks⁩ ago

  This was a reverse tragedy.

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  • Fredthefishlord@lemmy.blahaj.zone ⁨4⁩ ⁨weeks⁩ ago

    There was a tragedy. One billionaire forcing their child to die

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• SocialMediaRefugee@lemmy.world ⁨4⁩ ⁨weeks⁩ ago

  Trying to do extreme engineering on the cheap.

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  • Tollana1234567@lemmy.today ⁨3⁩ ⁨weeks⁩ ago

    it was DIY from start o finish on the craft.

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    • Rooster326@programming.dev ⁨3⁩ ⁨weeks⁩ ago

      How many atmospheres can this ship withstand?

      Well it’s a spaceship airplane, so I’d say anywhere between zero and one."

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    • SocialMediaRefugee@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      So his goal was to make a deep sea taxi of sorts. Rich guy affordable and capable of carrying more than 1 or 2 people at a time. Based on what I’ve read and seen he had two main reasons for the design:

      1. Titanium/steel would’ve been too heavy and required a different design.
      2. A sphere has too little volume to carry the number of passengers he wanted so he used a cylinder.

      His use of CF was not only mostly untested but where it had been tried it was found lacking. It is strong in one direction but not others. The manufacturing process was very difficult and fraught with issues. Making such a large component that thick meant many many wrappings that had to be precisely done. For instance, they would get bulges that had to be reduced immediately or they’d amplify with more wrappings. So they would grind down those spots and wrap over them. The problem here is now you’ve broken the fibers and created end points and fracture initiation points. Things like the junction between the metal end caps and the CF tube were also an issue.

      He was very cocky about how often you could reuse the vessel and tried to be cheap on testing which would involve sacrificing vessels. At 5,600 PSI small things that you could ignore in, say, an airplane structure, become wildly amplified.

      Personally I didn’t see the point of the whole trip except for bragging rights. You’d be watching most things on a monitor anyway and your porthole was this little, very thick, acrylic hole. You might as well send a robot down and watch on a screen on the ship.

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      • Tollana1234567@lemmy.today ⁨3⁩ ⁨weeks⁩ ago

        being a cylinder there was also greater surface area for pressure points too. i read the articles after it imploded, he reused the sub, after it already has been too deep.

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• architect@thelemmy.club ⁨3⁩ ⁨weeks⁩ ago

  I think it’s more like what are the chances it fails while we’re in it? Fuck it.

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  • BoxOfFeet@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    Considering that is basically the only time it could fail, I would say the chances were pretty high.

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• Taldan@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  The main issue with the Titan wasn’t as much the depth as it was cyclic loading

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  • Daft_ish@lemmy.dbzer0.com ⁨3⁩ ⁨weeks⁩ ago

    No, it was entirely the depth. They tested it in the lab and saw many failures but never changed the design.

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