Re: [PSUBS-MAILIST] Design depth

["Alan James" <alanjames@xtra.co.nz>]

Does ABS or ASME state what your operational depth should be in relation to your crush depth?
& if so is this different for the view ports.
I've read with fiberglass there is a 4x safety factor where human life is concerned.
Alan

----- Original Message ----- 
From: "Jon Wallace" <jonw@psubs.org>
To: <personal_submersibles@psubs.org>
Sent: Thursday, December 09, 2010 6:51 PM
Subject: Re: [PSUBS-MAILIST] Design depth


> From Design Guidelines for Personal Submersibles, Chapter 2, Section 1:
> http://www.psubs.org/cgi-bin/guidelines/text.cgi/guidelines/PSUBS/DG/aaa/2/aaa/1
>
> Design Depth = Maximum depth for which a vessel is designed.
> Rated Depth = The maximum depth successfully reached by the vessel.
> Operating Depth = Depth at which the vessel normally operates.
>
> The design depth should be equated to the failure depth.  This makes 
> sense since ABS/ASME design calculations solve for critical pressure or 
> that depth at which failure is predicted to occur.  Deduct your safety 
> factor to define your maximum operational depth.
>
> Jon
>
>
> On 12/8/2010 8:45 PM, irox wrote:
> > I am going to assume "design depth" is the same as maximum operational
> > depth, i.e.  the maximum depth you expect your submarine to operate at.
>
>
>
>
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