Re: [PSUBS-MAILIST] kitredge sub

["Emile" <2stroke@hetnet.nl>]

Ian,

Yes I mean for the same maximum hull weight, you can allow a thicker wall
(and frames) what means a higher moment of inertia, wich is more important
than the yield strenght.

The Trieste is another story, they made the wall thickness so great that it
has no positive buoyancy. To compensate this they had a thin walled hull
filled with incompressible gasoline wich has a SG. less than water. Not so
practical for our psubs..

Grs, Emile

----- Original Message ----- 
From: "Ian Roxborough" <irox@ix.netcom.com>
To: <personal_submersibles@psubs.org>
Sent: Sunday, October 12, 2003 7:05 PM
Subject: Re: [PSUBS-MAILIST] kitredge sub


> On Sun, 12 Oct 2003 18:20:15 +0200
> "Emile" <2stroke@hetnet.nl> wrote:
>
> >  Altough an Aluminium sub can go deeper than a steel one....
>
> That all depends on the pressure hull design.  The Trieste could
> drive 4 times deeper than the Aluminaut - but this has nothing
> to do with the materials used - it's all about the pressure hull
> design.
>
> Of course, I'm sure you mean pound for pound, or something like
> that.
>
> Ian.
>
> >
> > Grs. Emile van Essen
> >   ----- Original Message ----- 
> >   From: Dan H.
> >   To: personal_submersibles@psubs.org
> >   Sent: Sunday, October 12, 2003 2:00 AM
> >   Subject: Re: [PSUBS-MAILIST] kitredge sub
> >
> >
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