RE: [PSUBS-MAILIST] hull thickness

["Stephen Pearce" <sjpearceqld@bigpond.com>]

David

Joe is correct. I had wrongly made the same assumption at the time. 

I am not sure where it is in the archive but the string was back in
April/ May this year.

Steve P



-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Joseph
Perkel
Sent: Tuesday, 17 October 2006 10:28 AM
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] hull thickness

Hi David,

"100 psi
internally (pipe code spec's) so i would expect it to take the same 
externally"

Take care with that, it has been discussed on this forum a number of
times 
and there are some surprising (but inescapable) reasons why this is not
the 
case.

I believe Sean Stevenson gave an eloquent engineering dissertation on 
precisely this issue. A search of the archives and a bit of background 
research on your part will reveal this.

Joe


>From: DrewBane1@aol.com
>Reply-To: personal_submersibles@psubs.org
>To: personal_submersibles@psubs.org
>Subject: [PSUBS-MAILIST] hull thickness
>Date: Mon, 16 Oct 2006 17:41:05 EDT
>
>
>
>It is going to be an ambient pressure sub at first but has the ability
to
>withstand 100 psi
>internally (pipe code spec's) so i would expect it to take the same
>externally
>
>





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603-529-1100
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