[PSUBS-MAILIST] HY-100 full sphere, 42" ID, 2" shell thickness

[Sean T. Stevenson via Personal_Submersibles]

This one will take you well beyond Titanic, with a working depth of
almost 19,000 feet (no corrosion allowance).  You'll need over 1500 lbs
of buoyancy from syntactic foam or other sources, though.

Sean


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