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    <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 class="moz-cite-prefix">On 6/25/2023 6:11 PM, Jon Wallace via
      Personal_Submersibles wrote:<br>
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      cite="mid:638680734.4731766.1687687905537@mail.yahoo.com">
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        <div dir="ltr" data-setdir="false">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>
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        <div dir="ltr" data-setdir="false">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>
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        <div dir="ltr" data-setdir="false">Jon</div>
        <div dir="ltr" data-setdir="false"><br>
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          <div> On Sunday, June 25, 2023 at 04:09:00 AM EDT, Marc de
            Piolenc via Personal_Submersibles
            <a class="moz-txt-link-rfc2396E" href="mailto:personal_submersibles@psubs.org"><personal_submersibles@psubs.org></a> wrote: </div>
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          <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">
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