Comments by "Nattygsbord" (@nattygsbord) on "'There is no excuse for what happened here': Director James Cameron on Titanic sub tragedy" video.

  1. All planes are different. Some last long (like F15 Eagle) and other planes not even half of that. I guess the same is true for ships. The problem with this uboat was probably that it was unsafe, and that it was probably not built for these extreme depths. When you fly mach2 with an afterburner you exhaust the airframe much faster. And if you use your plane intensivly multiple times per day and fly it hard and aggressivly as in a war for your countrys survival - then can the airframe of a fighter jet easily be exhausted in a single year. And I imagine the extreme pressures down thousands of meters under the surface puts an extra strain as well. And this is not just true for planes and ships. But also for land based vehicles - a tank built back in the 1950s will not be as good today as when it was new from the factory, because when you drive cross country over big stones and such you create shakes that put a strain on the metal and cause material exhaustion... not by much, but by a little so when someone fires on for example on a rusty 75 year old russian tank in Ukraine it will much easier break apart from the hit even from old crappy anti-tank weapons like AT-4 and RPG7. This uboat began its construction around 2016-17, and it have made at least 50 journeys, including 3 times to Titanic and inside a test chamber with the same pressure as the depths of Titanic says metro.co uk... so this uboat is not that old. But it have been through much. I am not expert on material science, but there are those who says that carbonfibre is a terrible choice of material for this type of sub. I don't know it thats true. But I know that the carbon fibre layer is 5 inches thick while its engineers wanted it to be 7 inches. I have also heard from Bo Rask (the former submarine rescue chief here in Sweden) that the little window of the submarine was never certified for the depths of Titanic, and he seemed very convinced since days back that this ship was most likely torn apart by a leak or something, and then did the enormous pressure instantly finish off the submarine and killed all men inside in less than a second. This ship was using bolts and nuts from Walmart to keep the production costs low. And the carbonfibre and titanium was glued togheter. And I am no expert that can answer if that is a good solution with all the temperature and pressure changes 4000 meters down
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