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Re: Re: [PSUBS-MAILIST] Alternative hull material.



thx,  faaaar too many decades since high school :)

peter

-------Original Message-------
From: Warren Greenway <opensourcesub@yahoo.com>
Sent: 03/19/03 11:16 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Alternative hull material.

> 
> 14.7 is what's in my charts.

Warren.

--- peter  mckellar <mckellar@earthlink.net> wrote:
> Hi Ward,
> 
> >Please correct me if I'm wrong, but isn't 33 feet 1
> atmosphere?  The
> pressure at 8 feet is almost trivial. 
> 
> 0'  = 1 ATM
> 1 ATM = 14.7 psi
> 33' = 2 ATM (2 ATM is actually 32.8')
> 8'  = 2.5m
>     = 1.25 ATM
>     = 18.4 psi (true, pretty trivial)
> 
> i've rounded a little in the sums :)
> 
> 14.7 psi seems higher than my faded pre-metric
> memories suggest.  can anyone confirm this is
> correct?
> 
> the conversions were done by:
> 
>   <a target=_blank
href="http://www.megaconverter.com/Mega2/">http://www.megaconverter.com/Mega2/</a>
> 
> 
> hope this helps
> peter


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