[PSUBS-MAILIST] New submarine

[Sean T. Stevenson]

On 2014-04-08 07:01, swaters wrote:
> Is there any pictures of Karls boat? I appriciate the idea about the
> sphears Joe. 
>
> What is a good safety rating on a 1000m sub in terms of design crush
> depth or rated vs crush ratio? 
> Thanks,
> Scott Waters
>

Bare ABS rules give you 1.25 over predicted failure.  1.5 - 2.0 is
common in actual practice.  For a 1000m hull a 2.0 SF would necessitate
a lot of extraneous material.  Perhaps take the service conditions into
account? (i.e. will 1000m dives will be typical or exceptional?).


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