The sub went missing while carrying five people to the wreckage of the Titanic.

  • It would suck if they saw it coming, like slow leaks in the cabin or a crack forming in the view port… they would not have had to worry about it for long but they still may have had time to panic which would be quite shiddy

          • It’s not a pleasant process, but a catastrophic failure would be ideal from a “way to go” standpoint.

            By comparison the USS Thresher had a small brazing leak, followed by a freezing of the compressed air they tried to fill the ballast tanks with to emergency surface, and then got to experience the bulkheads imploding and slowly be crushed as they sank. There’s audio from nearby ships of it imploding online and it’s pretty terrifying to listen to.

          • This is an example of an accident of decompression:

            Coward, Lucas, and Bergersen were exposed to the effects of explosive decompression and died in the positions indicated by the diagram. Investigation by forensic pathologists determined that Hellevik, being exposed to the highest pressure gradient and in the process of moving to secure the inner door, was forced through the crescent-shaped opening measuring 60 centimetres (24 in) long created by the jammed interior trunk door. With the escaping air and pressure, it included bisection of his thoracoabdominal cavity, which resulted in fragmentation of his body, followed by expulsion of all of the internal organs of his chest and abdomen, except the trachea and a section of small intestine, and of the thoracic spine. These were projected some distance, one section being found 10 metres (30 ft) vertically above the exterior pressure door.

    • slow leaks in the cabin or a crack forming

      That doesn’t happen at that pressure. If something is wrong it just gets completely squished in milliseconds.

      Basically imagine a super strong pressure washer, but the water is not just a very thin jet, but instead everything around you.

    • Depends a lot on the depth, considering they were only halfway I imagine the water pressure combined with air escaping would have depressurized and atomized everything within 0.1-1.5 second.

      They would have heard the hull moaning, before it happened, But, if they saw water even a drop or even a crack, they wouldn’t have had time to comprehend they were dead.

      • Would they even have heard moaning? From everything I can tell, the whole idea was trading ductility for weight-reduction. I imagine something just… snapped. I suppose if you’ve got to go via an undersea vehicle incident, that’s the least horrifying option, though.