[PSUBS-MAILIST] Ribs outside hull

[Raphael SOULIAC via Personal_Submersibles]

Hey guys, i've got a quick question. The design i'm working on has a very
narrow hull (ØID 650mm) so i wanted to put the renforcing ribs on the
outside of the hull.

The ABS spreasheet give me 1113ft of max depth but it's for the ribs on the
inside.

What would be the difference between this and the real max depth ?

Raphael
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