@doot Someone found an article about signs of repeated stress damage to the hull when they were curious about other carbon fiber hulled subs, because turns out _that's the only one_ because it's _very stupid_ to build deep-sea subs out of carbon fiber.
I would love to see that because it confirms my biases about the stupid shit they were doing with carbon fibre.
@doot@glitterkitten.co.uk
@Homebrewandhacking comment from birdsite user I caught the link from:
>i found that first one because i was curious if anyone had done carbon fibre submersibles before, because cf can just fail on you if something goes wrong in the layup etc, and it turns out, no, no one else had @doot
Carbon fibre is great until it isn't. If I was a billionaire, I'd check the damn hull out before every dive. 4000 = metres = atmospheres of pressure!
https://oceangate.com/our-subs.html
The next closest is 500m. Which exceeds the 130m of the nuclear sub Thresher.
https://oceangate.com/our-subs.html
@doot@glitterkitten.co.uk
@pettter @Homebrewandhacking @doot
In fairness, according to Techcrunch one person had tried a carbon fibre submersible before - Steve Fossett with Spencer Composites - but he died in an unrelated misadventure before they got around to using it. https://techcrunch.com/2023/06/20/a-whistleblower-raised-safety-concerns-about-oceangates-submersible-in-2018-then-he-was-fired/
@emmatonkin Reading about Steve Fossett and apparently sparing no expense for saving dipshit rich people was a thing when he died as well
> By September 10, search crews had found eight previously unidentified crash sites,[53] some of which were decades old.[54] [...] About two dozen aircraft were involved in the massive search, @Homebrewandhacking @doot
@emmatonkin
> The Nevada search cost $1.6 million, "the largest search and rescue effort ever conducted for a person within the U.S." Jim Gibbons asked Fossett's estate to shoulder $487,000, but it declined, saying Fossett's wife had already spent $1 million on private searching.[75]
@Homebrewandhacking @doot
@pettter @Homebrewandhacking @doot
Well, that all sounds about par for the course, doesn't it... :(
If someone makes a thing but never tries it out can you still gain useful safety information?
@pettter @doot@glitterkitten.co.uk
@Homebrewandhacking @pettter @doot
I guess generally the making of it would be expected to involve a fair amount of testing, but even if that is done, it is probably calibrated to what the customer said their requirements were.