[PSUBS-MAILIST] New submarine

[swaters]

Hard to say, but I would think in designing this sub to go deep, that I would use it alot to go on deep dive and not many shallow dives.
Thanks,
Scott Waters




Sent from my U.S. Cellular© Smartphone"Sean T. Stevenson" <cast55 at telus.net> wrote: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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