• 「fleece!」
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    11 months ago

    This is haunting.

    There’s no gore or anything, it’s just twisted metal and cables. Still, seeing it and thinking “humans were alive in there mere days ago” made my gut drop. It’s not like looking at wreckage of an old ship or plane or something, it’s different. Because it’s so small, it feels more intimate. Like looking at a coffin vs looking at a graveyard

  • @PowerCrazy@lemmy.ml
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    2711 months ago

    Wow I didn’t know they were going to recover it at all. Pretty cool. Can’t wait to read about how shitty the design was.

    • @kunday@lemmy.ml
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      211 months ago

      I mean, it’s well known by this point. But a “seconds from disaster” version of it would be interesting to watch as disaster porn.

  • @kiwifoxtrot@lemmy.world
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    11 months ago

    Both titanium support rings were recovered intact. These are what bonded the carbon fiber hull to the titanium ends. There isn’t any evidence of carbon fiber still attached in the photos/ videos of the debris.

    Edit: more photos

  • @angrytoadnoises@lemmygrad.ml
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    2211 months ago

    I did not expect this thing to actually be hauled to shore. Kind of thought they were just going to leave it. How much did it cost to pull that thing up?

    • @maporita@lemmy.ml
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      2011 months ago

      Hopefully, examination of the wreckage will yield valuable information about the cause of the failure and help future designs of deep-sea submersibles.

      • AwkwardLookMonkeyPuppet
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        2411 months ago

        We already know how to build submersibles. Engineers told the CEO that this submersible was not built to spec and not safe. He fired them.

        • @stealthnerd@lemmy.world
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          11 months ago

          Sure we do but there’s always something to be learned from a failure. This sub was unique in it’s design and while that design ultimately failed, the knowledge gained from the failure could potentially lead to an improved design that maintains some of the benefits such as low cost and high occupancy.

          • @Nogami@lemmy.world
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            -1011 months ago

            Also when carbon fibre is used on other applications such as in planes and such. There is always something to be learned about failure modes which can be used to make future applications safer.

            For instance, in this case where exactly did the failure point happen? Was it at at the bonding area, one of the end caps, or in the middle of the tube, etc.

      • @deeoh@vlemmy.net
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        1711 months ago

        Normally I’d agree with you, but we already know that carbon fiber is weaker in compression than in tension and that you really shouldn’t attach it to titanium either, due to their differences in malleability.

    • @kunday@lemmy.ml
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      111 months ago

      I mean we have money for that. Not just for social services, cause that will set the wrong incentive /s

    • @JshKlsn@lemmy.ml
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      611 months ago

      Ya the only damage would be from the implosion and shrapnel. Everything else was sitting at the same pressure, so there’s nothing really going on to cause damage.

      It’s weird seeing huge pieces that look relatively undamaged. Looks like you can just throw that frame with all the electronics in the spare parts bin and call it a day lol

  • @mook@lemmy.ml
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    1011 months ago

    Interesting - I had imagined it being imploded into bits like the simulations on the news show.

    • @philz@lemmy.worldOP
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      611 months ago

      I believe this is the outer portion. The carbon fiber shell imploded and is probably not recoverable.

    • @cyanarchy@sh.itjust.works
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      311 months ago

      I’m certainly no expert but I understand submarines have an inner and outer hull. The inner hull has to withstand the pressure of the deep but the outer hull does not. The inner hull would be crushed into bits but the outer hull and any equipment in-between would likely be ripped into large chunks as such a violent event occurs inside of it.

      • @Nogami@lemmy.world
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        -811 months ago

        Subs have dual hulls so they can fill the void between them with water to sink, or air to float, but they don’t dive anywhere near as deep. Most regular naval subs operate above 800 meters. They only have to be below the surface of the water for stealth, not at the bottom of the ocean.

        This craft was a single hull design as far as I’m aware, designed with a rigid hull to try and counteract the pressure at the bottom.

    • @kiwifoxtrot@lemmy.world
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      111 months ago

      The outer shell didn’t hold pressure and was there to cover wires/ equipment exposed outside the pressure vessel.

    • @dotancohen@lemmy.world
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      011 months ago

      like the simulations on the news show

      Why would you put any faith in a simulation by an organization that has no knowledge of the domain?

    • @Thorny_Thicket@sopuli.xyz
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      911 months ago

      Controllers like that are used on nuclear attack submarines aswell so that is not the issue even though it might seem funny to someone not familiar with this stuff.

      Those companies have made billions of them over several decades. It’s much more reliable to go with a one like that than to develop a new one from scratch. Submarines don’t implode because it was steered by a logitech controller

      • @Arbiter@lemmy.world
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        411 months ago

        Nuclear subs do not however use them for propulsion. Something like a very basic input delay or other Bluetooth issue could be catastrophic.

      • @maiskanzler@feddit.de
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        311 months ago

        In a video I heard the CEO say they have spare ones on hand, just in case. But still, having my life depend on a Bluetooth device seems just wrong. Why not go with a direct cable? Much less to go wrong!

        • @Thorny_Thicket@sopuli.xyz
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          211 months ago

          I don’t disagree. I almost refuse to use even wireless headphones myself.

          However all the fail-safes on the sub were quite decent in my opinion so the controller isn’t really life-critical. The issue was that none of the safety features protects you from far exceeding the rated maximum dive depth. They probably didn’t know what hit them.