<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1420859726755_13508" dir="ltr"><span>Hank,</span></div><div id="yui_3_16_0_1_1420859726755_13508" dir="ltr"><span>do you know what aluminum they are & is that 60" OD?</span></div><div id="yui_3_16_0_1_1420859726755_13508" dir="ltr"><span>I will put it through my calculator if I have the material in </span></div><div id="yui_3_16_0_1_1420859726755_13508" dir="ltr"><span>the data base. But not till after BBQ; nice hot day here in Auckland:)</span></div><div id="yui_3_16_0_1_1420859726755_13508" dir="ltr"><span>Sean might beat me to it & have a more reliable result.</span></div><div id="yui_3_16_0_1_1420859726755_13508" dir="ltr"><span>Alan</span></div><br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1420859726755_13491"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1420859726755_13490"> <div dir="ltr" id="yui_3_16_0_1_1420859726755_13489"> <hr size="1" id="yui_3_16_0_1_1420859726755_13509"> <font size="2" face="Arial" id="yui_3_16_0_1_1420859726755_13488"> <b><span style="font-weight:bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, January 10, 2015 4:16 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Hull Calc: 78" spheres<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1420859726755_13510"><br><br clear="none">just to make things interesting. I found two aluminum 60 in spheres 3 in thick wall and maybe 6 in thick flange. They appear to be cast and perfectly round.<br clear="none">Hank--------------------------------------------<br clear="none">On Fri, 1/9/15, Sean T. Stevenson via Personal_Submersibles <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"> Subject: Re: [PSUBS-MAILIST] Hull Calc: 78" spheres<br clear="none"> To: "Personal Submersibles General Discussion" <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Received: Friday, January 9, 2015, 10:07 PM<br clear="none"> <br clear="none"> <br clear="none"> On 2015-01-09<br clear="none"> 18:16,<br clear="none"> <a shape="rect" ymailto="mailto:swaters@waters-ks.com" href="mailto:swaters@waters-ks.com">swaters@waters-ks.com</a><br clear="none"> via Personal_Submersibles wrote:<br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> Sean,<br clear="none"> Can I ask you to do one more calc for me? 516 gr 70 sphere,<br clear="none"> 1" thick, 72" diameter. <br clear="none"> The 78" was not within ABS rules at 1000m. I think the<br clear="none"> 72" might just make it, yet give me more boyancy than<br clear="none"> the 60"<br clear="none"> Thanks,<br clear="none"> Scott Waters<br clear="none"> <br clear="none"> <br clear="none"> Not sure where you're going with this. The<br clear="none"> 60" sphere doesn't even<br clear="none"> make it at 1" thickness. A 72" definitely<br clear="none"> won't.<br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> 72" OD, 1" wall, ASTM A516 Grade 70:<br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> Just out of interest, I checked how small a sphere with<br clear="none"> 1" thick<br clear="none"> hull would need to be to get you to 1000m. Turns out<br clear="none"> it's about 50<br clear="none"> inches:<br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> Sean<br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> <br clear="none"> -----Inline Attachment Follows-----<br clear="none"> <br clear="none"> _______________________________________________<br clear="none"> Personal_Submersibles mailing list<br clear="none"> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"> <a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><div class="qtdSeparateBR"><br><br></div><div class="yqt3297038877" id="yqtfd33657"><br clear="none"> <br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></div><br><br></div> </div> </div> </div></body></html>