<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top">Interesting Hugh thank you.<br/><br/>In the end both Hank and Jon are correct in that for the 36" OD hull the point is quite moot. Still, a very interesting subject and some valuable references gained.<br/><br/>Joe<a href="http://overview.mail.yahoo.com?.src=iOS"><br/><br/>Sent from Yahoo Mail for iPad</a></td></tr></table>            <div id="_origMsg_">
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                            Alec Smyth <alecsmyth@gmail.com>;                            <br>
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                                <span style="font-weight:bold">To:</span>
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                            Personal Submersibles General Discussion <personal_submersibles@psubs.org>;                                                                                                     <br>
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                                <span style="font-weight:bold">Subject:</span>
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                            Re: [PSUBS-MAILIST] conical transitions                            <br>
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                                <span style="font-weight:bold">Sent:</span>
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                            Tue, Jan 7, 2014 9:02:35 PM                            <br>
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                                        <td valign="top"><div dir="ltr">Love it. In a way what Carsten did is similar to that too, making the "cone" as a series of conical steps so the angles are smaller at each inflection point.<div><br clear="none"></div><div>Alec</div></div><div class="gmail_extra">
<br clear="none"><br clear="none"><div class="gmail_quote">On Tue, Jan 7, 2014 at 3:45 PM, Hugh Fulton <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:hc.fulton@gmail.com" target="_blank" href="javascript:return">hc.fulton@gmail.com</a>></span> wrote:<br clear="none"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">


<div class="yqt4078458282" id="yqt70707"><div lang="EN-US"><div><p class="MsoNormal"><span style="font-size:11.0pt;">Hi All,  <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;">I have been through that problem and you have to have a good sized stiffener there of some sort.  I could not afford the room as an intrusion of internal space.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;">This is the solution and the angle of the additional reinforcing cone is 22.5 degrees being half the 45 degrees of the cone.  This survived an FEA analysis.  The end of the cone is where my window was attached.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;">This was a 48” shell  .  Regards,  Hugh<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;"><img width="1230" height="644" src="cid:1.1715168204@web161802.mail.bf1.yahoo.com"></span><span style="font-size:11.0pt;"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;"><u></u> <u></u></span></p><div><p class="MsoNormal"><span lang="EN-NZ" style="font-size:11.0pt;"><u></u> <u></u></span></p>
</div><p class="MsoNormal"><span style="font-size:11.0pt;"><u></u> <u></u></span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm;">
<p class="MsoNormal"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;"> Personal_Submersibles [mailto:<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="javascript:return">personal_submersibles-bounces@psubs.org</a>] <b>On Behalf Of </b>Jon Wallace<br clear="none">
<b>Sent:</b> Wednesday, 8 January 2014 8:10 a.m.</span></p><div class="im"><br clear="none"><b>To:</b> Personal Submersibles General Discussion<br clear="none"></div><div class="im"><b>Subject:</b> Re: [PSUBS-MAILIST] conical transitions<u></u><u></u></div>
<p></p></div></div><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal" style="margin-bottom:12.0pt;"><br clear="none"></p><div><div class="h5">Joe, ABS says stiffened cones are to have their ends bounded by two heavy stiffeners each located as close as possible to the point of cone-to-cylinder transition.<br clear="none">
<br clear="none">The stiffener is not located on the weld line but as close as possible to it.<br clear="none"><br clear="none">Jon<br clear="none"><br clear="none"><br clear="none"><br clear="none"><u></u><u></u></div></div><p></p><div><div class="h5"><div><div><div><p class="MsoNormal"><span style="font-size:10.0pt;">On Tuesday, January 7, 2014 5:30:16 AM, Joe Perkel <a rel="nofollow" shape="rect" ymailto="mailto:josephperkel@yahoo.com" target="_blank" href="javascript:return"><josephperkel@yahoo.com></a> wrote:</span><span style=""><u></u><u></u></span></p>
</div><div><div><div><table border="0" cellspacing="0" cellpadding="0"><tbody><tr><td colspan="1" rowspan="1" valign="top" style="padding:0cm 0cm 0cm 0cm;"><p class="MsoNormal">David,<br clear="none"><br clear="none">Is that T ring directly on the weld line, or offset any distance?<br clear="none">
<br clear="none">Joe<a rel="nofollow" shape="rect" target="_blank" href="http://overview.mail.yahoo.com/?.src=iOS"><br clear="none"><br clear="none">Sent from Yahoo Mail for iPad</a><u></u><u></u></p></td></tr></tbody></table><div><div><div><p class="MsoNormal"><span style=""><u></u> <u></u></span></p>
</div></div></div></div></div></div></div></div></div></div></div><p class="MsoNormal"><br clear="none"><br clear="none"><br clear="none">__________ Information from ESET NOD32 Antivirus, version of virus signature database 9257 (20140106) __________<br clear="none"><br clear="none">The message was checked by ESET NOD32 Antivirus.<br clear="none">
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