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Re: RV: [PSUBS-MAILIST] K-350 Basic Components

To: personal_submersibles@psubs.org
Subject: Re: RV: [PSUBS-MAILIST] K-350 Basic Components
From: Ray Keefer <psubs2001@yahoo.com>
Date: Fri, 21 Jul 2006 15:52:53 -0700 (PDT)
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In-reply-to: <200607211333.k6LDXUM8010316@rs26s12.datacenter.cha.cantv.net>
Reply-to: personal_submersibles@psubs.org
Sender: owner-personal_submersibles@psubs.org

Hi,

A compressed tank is not the same as a submarine hull.
Just because a company can build one doesn't mean they
can build the other.

The physics of the two operating environments are
different.

I say this because a compressed air tank has a
relatively high internal pressure. The tank can be out
of round a bit and hold just fine. The metal used is
relatively thinner.

A submarine hull has to withstand higher outside
pressures. It has to be closer to round and reinfored
with ribs or it can deform.

Now if you have plans that include the reinforcing and
you are personally there during assembly to check out
of roundness, then perhaps an air compressor factory
could build what you want. Make sure you do x2
unmanned safety dives before trusting your life to it.


Actually do unmanned safety dives regardless of who
built the hull. 

A possible use of an air compressor factory is
providing components. Which you get a PVHO certified
welder to put together.

Regards,
Ray

--- Daniel Tortolani <daniel@tordaca.com> wrote:

> 
> 
> -----Mensaje original-----
> De: Daniel Tortolani [mailto:daniel@tordaca.com] 
> Enviado el: Viernes, 21 de Julio de 2006 09:32 a.m.
> Para: 'personal_submersibles@psubs.org'
> Asunto: RE: [PSUBS-MAILIST] K-350 Basic Components
> 
> Hello James.
> 
> You should try to contact some company capable of
> making iron tanks, I had
> the same problem last year when I started my
> project, I couldn't find a
> company with experience making pressure hull for
> submarines but what I did
> find was an air compressor factory that was capable
> of rolling the iron
> sheet for the pressure hull, make the end caps,
> conning tower, battery pods,
> and then weld all the parts together. For them was
> really easy to make the
> sub hull because they make tanks for their
> compressors that are very similar
> to the sub hull every day. Forget sub experience,
> you have plans, find a
> good reliable metal mechanics company that can
> construct the main parts, It
> worked for me, I hope It does for you. Best Regards.
> 
> Daniel Tortolani 
> 
> -----Mensaje original-----
> De: owner-personal_submersibles@psubs.org
> [mailto:owner-personal_submersibles@psubs.org] En
> nombre de James Frankland
> Enviado el: Viernes, 21 de Julio de 2006 08:52 a.m.
> Para: personal_submersibles@psubs.org
> Asunto: [PSUBS-MAILIST] K-350 Basic Components
> 
> Hi All.
> 
> Does anyone know of a reputable company for
> manufacturing the basic pressure
> hull components for K-350 in the UK.
> 
> There is an engineering company here in Guernsey
> Channel Islands where i
> live that say they can help.  But they are small and
> i don't think they have
> made pressure vessels before.  
> 
> I need the rolled steel tube, endcaps, reinforcing
> rings, conning tower,
> battery pods and VBT.  All in component form.  
> 
> I'd prefer to use a company that at least has
> experience with pressure
> vessels.   There must be somewhere in the UK that
> someone has used before?
> 
> Many thanks
> James
>  
> 
>  
>
__________________________________________________________________________
> Sent via Cable & Wireless Guernsey system at
> cwgsy.net
> 
> 
>  
>                           
> 
> 
> 
>
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References:
- RV: [PSUBS-MAILIST] K-350 Basic Components
  - From: "Daniel Tortolani" <daniel@tordaca.com>

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