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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Sean, that is a sexy programme. Is it a rendition of the one on psubs with Visual basic or another programme that you have developed? Love this stuff. Regards, Hugh<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-NZ style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></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;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Sean T. Stevenson<br><b>Sent:</b> Thursday, 10 April 2014 4:58 p.m.<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> Re: [PSUBS-MAILIST] K3000 spherical shell calculations<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Further to this discussion, additional safety factor or design crush depth beyond the ABS maximum allowable working pressure may be a moot point in this example, as the payload capacity (net buoyancy) of the shell in question (A516 grade 70, 6' inner diameter) becomes negatively buoyant at only 1152 m working depth, meaning that if you design for deeper than that, the shell becomes heavy enough that you need supplemental buoyancy to stay afloat. With HY-80, the situation improves significantly, extending depth to 2347 m before going negative.<br><br><br><img width=950 height=725 id="_x0000_i1025" src="cid:image001.png@01CF5560.1B24C650"><br><br><img width=950 height=725 id="_x0000_i1026" src="cid:image002.png@01CF5560.1B24C650"><br><br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature database 9658 (20140410) __________<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a href="http://www.eset.com">http://www.eset.com</a><o:p></o:p></p></div> <BR><BR>__________ Information from ESET NOD32 Antivirus, version of virus signature database 9658 (20140410) __________<BR><BR>The message was checked by ESET NOD32 Antivirus.<BR><BR><A HREF="http://www.eset.com">http://www.eset.com</A><BR> </body></html>