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Titanic tourist submersible goes missing with search under way
(www.bbc.co.uk)
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this post was submitted on 19 Jun 2023
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this concept is indeed unnecessary if you can't even open your submarine yourself in the first place, another article says the bolts outside need to be oppened by a crew on the support ship
It could be mounted externally, separate from other systems, and it would be fairly trivial to implement a strictly mechanical means of activating it from inside the vessel. All that would be needed is to open the valve on the external pressure vessel.
If you're referring to getting out once you're on the surface...hell of a lot easier for rescue crews to find you and do that if you've got a huge orange inflatable holding you at the surface, rather than however many thousands of feet underwater.
True. But I meant if all is only controlled from the inside, then what do you do if again that fails, seems like the same problem