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A comment on Debris field found in search for missing submersible. Parent comment

Re:Debris field found in search for missing submersible by dragonwriter on Thursday June 22, 2023 @06:43PM (#36440193)
> But in deep sea diving is weight a factor at all?

You need to be able to attain both positive and negative buoyancy, which constrains density within a range, right? That limits design choices like “giant block of steel with a tiny passenger cavity”.

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Re:Debris field found in search for missing submersible by CydeWeys on Thursday June 22, 2023 @06:56PM (#36440346)
It's super easy to add buoyancy by attaching it to the hull outside the pressure vessel. James Cameron's design uses a metal pressure vessel with an advanced foam composite outside of it for buoyancy.
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