this post was submitted on 20 Jun 2023
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I agree completely with the controller, it doesn't really matter what is used to steer the ship, just that it has fail-safes.
I don't think resurfacing is the most important part here. Bathyscaphes are normally designed to jettison iron or steel ballasts attached by electromagnet, which allows them to surface due to their natural buoyancy. It's impossible to say for the Titan though, it was a specialty one-off design without much public detail about it's design.
This is a really interesting video to get a take from an experienced submariner that I found really informative - https://youtu.be/4dka29FSZac
Thanks for sharing that video link. It was very insightful.