<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Hank, could you use a volume of gasoline for buoyancy?</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] syntactic foam<BR>Date: Tue, 17 Nov 2015 23:14:07 +0000 (UTC)<BR><BR></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Alan,</SPAN></DIV><DIV dir="ltr"><SPAN>The problem with that is, if a float did fail you could not find it or maybe not even notice if it did fail. I think a float rack under the cowling should work. I am dealing on 4 titanium spheres at the moment. Each sphere gives 200 lbs buoyancy NET </SPAN></DIV><DIV dir="ltr"><SPAN>Hank</SPAN></DIV> <BR><DIV><BR><BR></DIV><DIV style="display: block;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV dir="ltr"><FONT face="Arial" size="2"> On Tuesday, November 17, 2015 3:51 PM, Alan James via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<BR></FONT></DIV> <BR><BR> <DIV><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Hank,</SPAN></DIV><DIV dir="ltr"><SPAN>if the trawl floats crushed they would do it one at a time.</SPAN></DIV><DIV dir="ltr"><SPAN>Maybe make a fiberglass form in the shape you need &</SPAN></DIV><DIV dir="ltr"><SPAN>fill it with differing sizes of trawl floats. With smaller trawl floats filling the</SPAN></DIV><DIV dir="ltr"><SPAN>gaps between the bigger ones. Then in stages fill in the gaps with syntactic foam.</SPAN></DIV><DIV dir="ltr"><SPAN>That should add strength to the trawl floats. I should think the whole unit </SPAN></DIV><DIV dir="ltr"><SPAN>would be much stronger than it's individual parts, but that's a Sean question:)</SPAN></DIV><DIV dir="ltr"><SPAN>Alan</SPAN></DIV><BR> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV><DIV dir="ltr"> <HR size="1"> <FONT face="Arial" size="2"> <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> Wednesday, November 18, 2015 10:03 AM<BR> <B><SPAN style="font-weight: bold;">Subject:</SPAN></B> Re: [PSUBS-MAILIST] syntactic foam<BR> </FONT> </DIV> <DIV><BR><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Sean,</SPAN></DIV><DIV dir="ltr"><SPAN>I have looked at building steel buoyancy tanks- they are just to heavy to be effective. I am trying to keep the sub as light as possible and trawl floats are better than 50% </SPAN>buoyant to weight. Unless there is a serious risk to using trawl floats, I think they are the most logical and cost effective choice at 3 dollars per lb of buoyancy . I will also have substantial MBT volume to offset failed trawl floats. If I am wrong, please correct me, I would love to have steel tanks, that is right up my alley.</DIV><DIV dir="ltr">Hank</DIV><DIV dir="ltr"><BR></DIV> <BR><DIV><BR><BR></DIV><DIV style="display: block;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV><BR><BR></DIV><DIV><DIV dir="ltr"> <FONT face="Arial" size="2"> On Tuesday, November 17, 2015 9:19 AM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<BR> </FONT> </DIV> <BR><BR> <DIV><DIV><DIV><DIV dir="ltr">I was referring to Cliff's suggestion that you fabricate steel pressure vessels as permanent buoyancy, as opposed to using foam at all.</DIV>
<DIV dir="ltr">Sean<BR>
</DIV>
<BR><BR><DIV><DIV>On November 16, 2015 5:56:58 PM MST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<BLOCKQUOTE style="margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">
<DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Yes, trawl floats as Macro spheres.</SPAN></DIV><DIV><SPAN>Hank</SPAN></DIV> <BR><DIV><BR><BR></DIV><DIV style="display: block;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV dir="ltr"> <FONT face="Arial" size="2"> On Monday, November 16, 2015 5:36 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<BR> </FONT> </DIV> <BR><BR> <DIV><DIV><DIV><DIV dir="ltr">He might have been on to something wrt fabricating b!
uoyancy
vessels.</DIV>
<DIV dir="ltr">Sean<BR>
</DIV>
<BR><BR><DIV>On November 16, 2015 5:19:13 PM MST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<BLOCKQUOTE style="margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">
<DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Just had a look at Cliff's PDF on Syntactic foam. Wow very nice! and there is a cost breakdown I see. It is much cheaper than buying but still twice the cost of trawl floats. </SPAN></DIV><DIV><SPAN>Hank</SPAN></DIV> <BR><DIV><BR><BR></DIV><DIV style="display: block;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV dir="ltr"> <FONT face="Arial" size="2"> On Monday, November 16, 2015 5:05 PM, hank pronk via Personal_Submersibles
<personal_submersibles@psubs.org> wrote:<BR> </FONT> </DIV> <BR><BR> <DIV><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Alan,</SPAN></DIV><DIV><SPAN>Yes I could save a few bucks and look good at the same time :-) I doubt I could make foam for less than trawl floats but maybe Cliff has a cost per lb buoyancy. There is syntactic foam available that you mix together into your own mould also. I am also still woking on the titanium spheres. I have time to sort it out.</SPAN></DIV><DIV><SPAN>Hank</SPAN></DIV> <BR><BR><BR></DIV><DIV style="display: block;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV><DIV dir="ltr"> <FONT face="Arial" size="2"> On Monday, November 16, 2015 5:01 PM, Alan James via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<BR> </FONT> </DIV> <BR><BR> <DIV><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><DIV><SPAN>Hank,</SPAN></DIV><DIV><SPAN>you could go on a diet :)</SPAN></DIV><DIV><SPAN>There is this pdf on making syntactic foam by Cliff</SPAN></DIV><DIV dir="ltr"><SPAN><A href="http://www.psubs.org/design/PDF/SyntacticFoam.pdf">http://www.psubs.org/design/PDF/SyntacticFoam.pdf</A><BR></SPAN></DIV><DIV dir="ltr">I went to Alvins 50th Birthday party in New Orleans.</DIV><DIV dir="ltr">They said the syntactic foam on it cost $3million. </DIV><DIV dir="ltr">That included all the pressure testing</DIV><DIV>of the individual segments.</DIV>Alan<BR> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <DIV><DIV dir="ltr"> <HR size="1"> <FONT face="Arial" size="2"> <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> Tuesday, November 17, 2015 12:39 PM<BR> <B><SPAN style="font-weight: bold;">Subject:</SPAN></B> [PSUBS-MAILIST] syntactic foam<BR> </FONT> </DIV> <DIV><BR><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><DIV>Yikes! syntactic foam is costly. Syntactic foam for 1,000M is 8 dollars per pound buoyancy- trawl floats are 3 dollars per lb buoyancy. I need almost 1,000 lbs buoyancy.</DIV><DIV>Hank</DIV></DIV></DIV></DIV><BR>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR><BR><BR></DIV></DIV> </DIV> </DIV> </DIV></DIV></DIV><BR><DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV><BR><BR></DIV></DIV> </DIV> </DIV> </DIV></DIV></DIV></DIV><BR><DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV><BR><BR></DIV> </DIV> </DIV> </DIV></DIV></BLOCKQUOTE></DIV><DIV style="margin-top: 2.5em; margin-bottom: 1em; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;"></DIV><PRE></PRE><HR><BR>Personal_Submersibles mailing list<BR>Personal_Submersibles@psubs.org<BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BLOCKQUOTE></DIV><BR><DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV><BR><BR> <DIV style="margin-top: 2.5em; margin-bottom: 1em; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;"></DIV><PRE></PRE><HR><BR>Personal_Submersibles mailing list<BR>Personal_Submersibles@psubs.org<BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV></DIV></DIV><BR><DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV><BR><BR></DIV></DIV> </DIV> </DIV> </DIV></DIV></DIV></DIV><BR><DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV><BR><BR></DIV></DIV> </DIV> </DIV> </DIV></DIV></DIV><BR><DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV><BR><BR></DIV> </DIV> </DIV> </DIV></DIV>_______________________________________________
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