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<p>If it's the guy I'm thinking of, the sub was made of reinforced
concrete, not ferrocement. <br>
</p>
<p>Marc<br>
</p>
<div class="moz-cite-prefix">On 6/25/2023 11:07 PM, Alec Smyth via
Personal_Submersibles wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CABECYQ4PGSJj-M1ASi=4msM1VFH72Ljwuy35t3SuKMC6A_1RfA@mail.gmail.com">
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<div dir="ltr">There's an interesting story about cement subs,
which I will tell to the best of my recollection. In the early
years we had a PSUBS member whose name I forget, I believe Swiss
or Austrian, who had built a ferrocement sub that he kept at a
mooring in a Swiss lake. The sub was successful, he dived it for
years. But eventually he moved to Colombia due to marriage, and
scuttled the sub in the lake, because the road he had used to
take it there had been re-routed or modified somehow, leaving
him without any way of getting it out. The sub became an
attraction for local SCUBA divers.
<div><br>
</div>
<div>The second part of the story is that another PSUBS member,
Ian Roxborough, hired the first guy to build him a large
cement sub with the intention of making it an ocean going
live-aboard. The project was done completely on the level,
with notification to authorities and in a major port. This was
no drug sub built in the jungle. It got to the point where the
hull was complete, and I think they were about for the first
launch. However, Colombia being plagued by drug subs, the
authorities would not sign off on final paperwork or something
(can't remember the exact glitch.) Ian had sunk a ton of funds
into it, and the sub was probably perfectly good, but approval
never came. I'm not sure what happened to the sub. But Ian is
still very much active, so maybe can tell us. I'm not sure if
he's on the email list. If you are, Ian, sorry for bringing up
this rather painful memory!</div>
<div><br>
</div>
<div>Best,</div>
<div>Alec</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun, Jun 25, 2023 at
8:35 AM Marc de Piolenc via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org"
moz-do-not-send="true" class="moz-txt-link-freetext">personal_submersibles@psubs.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>That's it. I lost interest when I realized he had built a
superstructure on a conventional pressure hull.</p>
<p>Very sorry to hear about Brian Cox.</p>
<p>Marc<br>
</p>
<div>On 6/25/2023 6:11 PM, Jon Wallace via
Personal_Submersibles wrote:<br>
</div>
<blockquote type="cite">
<div style="font-family:"times new
roman","new
york",times,serif;font-size:16px">
<div dir="ltr">Marc, that was probably Brian Cox who
passed away a year or so ago. His pressure hull was
steel but he did use ferrocement for the
superstructure. <a
href="http://www.subdb.info/cgi/database/showvessel/index.cgi?ID=1272980224&VN=Esmae&VT=1"
rel="nofollow" target="_blank"
moz-do-not-send="true">http://www.subdb.info/cgi/database/showvessel/index.cgi?ID=1272980224&VN=Esmae&VT=1</a></div>
<div dir="ltr"><br>
</div>
<div dir="ltr">There are no standards for using
ferrocement as a manned submarine pressure hull and I
think anyone attempting it would find little support
for the project given the Ocean Gate loss.</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Jon</div>
<div dir="ltr"><br>
</div>
<div><br>
</div>
</div>
<div
id="m_4380271176043459050ydpc0df22c3yahoo_quoted_7854919351">
<div style="font-family:"Helvetica
Neue",Helvetica,Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
<div> On Sunday, June 25, 2023 at 04:09:00 AM EDT,
Marc de Piolenc via Personal_Submersibles <a
href="mailto:personal_submersibles@psubs.org"
target="_blank" moz-do-not-send="true"><personal_submersibles@psubs.org></a>
wrote: </div>
<div><br>
</div>
<div><br>
</div>
<div>
<div dir="ltr">I know. I fell in love with FC for
yachts, which made me wonder how <br clear="none">
useful it would be for pressure hulls... Turns out
there is a 2010 <br clear="none">
exchange of messages in my archive with somebody
on this list who built <br clear="none">
in FC, Brian Cox. Is he still there?<br
clear="none">
<br clear="none">
Marc<br clear="none">
<br clear="none">
On 6/24/2023 8:27 PM, Bernie Hellstrom via
Personal_Submersibles wrote:<br clear="none">
> Many boat hulls were made with FC. Even the
landing barges in the ww2 , to make piers to in
load ships!<br clear="none">
><br clear="none">
> Sent from my iPhone<br clear="none">
><br clear="none">
<div
id="m_4380271176043459050ydpc0df22c3yqtfd88497"><br
clear="none">
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
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</pre>
</blockquote>
<pre cols="72">--
Archivale catalog: <a href="http://www.archivale.com" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">http://www.archivale.com</a>
Mass Flow (ducted fans): <a href="http://massflow.archivale.com" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">http://massflow.archivale.com</a>
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Pinterest: <a href="https://www.pinterest.ph/piolenc" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">https://www.pinterest.ph/piolenc</a></pre>
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</blockquote>
<pre class="moz-signature" cols="72">--
Archivale catalog: <a class="moz-txt-link-freetext" href="http://www.archivale.com">http://www.archivale.com</a>
Mass Flow (ducted fans): <a class="moz-txt-link-freetext" href="http://massflow.archivale.com">http://massflow.archivale.com</a>
ProZ profile: <a class="moz-txt-link-freetext" href="https://www.proz.com/profile/639380">https://www.proz.com/profile/639380</a>
Substack account: <a class="moz-txt-link-freetext" href="https://fmarcdepiolenc.substack.com">https://fmarcdepiolenc.substack.com</a>
Pinterest: <a class="moz-txt-link-freetext" href="https://www.pinterest.ph/piolenc">https://www.pinterest.ph/piolenc</a></pre>
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