<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_ym19_1_1461412329426_6777"><span>Alan,</span></div><div id="yui_3_16_0_ym19_1_1461412329426_6777" dir="ltr"><span id="yui_3_16_0_ym19_1_1461412329426_6890">I have found that gasoline is the the lightest practical choice. I would however opt for diesel even though it is not as light but much safer.</span></div><div id="yui_3_16_0_ym19_1_1461412329426_6777" dir="ltr"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" 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 size="2" face="Arial"> On Friday, April 22, 2016 8:32 PM, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv5732946910"><div><div>Hank, have you looked at oil for buoyancy.</div><div>That syntactic foam for deep submergence is probably not that</div><div>light with it's microscopic spheres. On Alvin they told me the foam</div><div>& the testing of it was about $3 million. </div><div>Alan<br clear="none"><br clear="none">Sent from my iPad</div><div class="yiv5732946910yqt1141651418" id="yiv5732946910yqt34875"><div><br clear="none">On 23/04/2016, at 2:10 pm, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div dir="ltr"><span>Hi Hugh,</span></div><div dir="ltr" id="yiv5732946910yui_3_16_0_ym19_1_1461376917761_4451"><span id="yiv5732946910yui_3_16_0_ym19_1_1461376917761_4450">Thanks' I wish sometimes I spent more time thinking LOL </span></div><div dir="ltr" id="yiv5732946910yui_3_16_0_ym19_1_1461376917761_4451"><span>I am looking for a way to go deeper without the crazy cost for buoyancy, I am looking at different materials for a pressure hull as well as for buoyancy.</span></div><div dir="ltr" id="yiv5732946910yui_3_16_0_ym19_1_1461376917761_4451"><span id="yiv5732946910yui_3_16_0_ym19_1_1461376917761_4714">Just fun stuff to think about.</span></div><div dir="ltr" id="yiv5732946910yui_3_16_0_ym19_1_1461376917761_4451"><span>Hank</span></div><div dir="ltr" id="yiv5732946910yui_3_16_0_ym19_1_1461376917761_4412"><span><br clear="none"></span></div> <div class="yiv5732946910qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv5732946910yahoo_quoted" 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 size="2" face="Arial"> On Friday, April 22, 2016 7:05 PM, Hugh Fulton via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv5732946910y_msg_container"><div id="yiv5732946910"><style>#yiv5732946910 --
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#yiv5732946910 </style><div><div class="yiv5732946910WordSection1"><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;">Hank,</span></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;">Smart is what you do. Get things done. There are always people who know more about something than you. Smart is knowing which one to ask.</span></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;"> </span></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;">What I meant was the thicker the metal the deeper you go. Same as a car. Further you push the pedal to the metal the faster you go.</span></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;"> </span></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;">Just seems as though the next thing you would be doing is designing a sub to go deeper. That where you are heading?</span></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;"> </span></div><div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;">I think you are amazing the way you get things done while we all sit and think of it. </span></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;">Regards, Hugh</span></div><div class="yiv5732946910MsoNormal"><span lang="EN-NZ" style="font-size:11.0pt;"> </span></div></div><div class="yiv5732946910MsoNormal"><span style="font-size:11.0pt;"> </span></div><div class="yiv5732946910yqt5105049800" id="yiv5732946910yqt23148"><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm;"><div class="yiv5732946910MsoNormal"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;"> Personal_Submersibles [<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <b>On Behalf Of </b>hank pronk via Personal_Submersibles<br clear="none"><b>Sent:</b> Saturday, 23 April 2016 8:45 a.m.<br clear="none"><b>To:</b> Personal Submersibles General Discussion<br clear="none"><b>Subject:</b> Re: [PSUBS-MAILIST] head strength</span></div></div></div><div class="yiv5732946910MsoNormal"> </div><div><div id="yiv5732946910yui_3_16_0_ym19_1_1461357812735_2859"><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">Hugh,</span></div></div><div id="yiv5732946910yui_3_16_0_ym19_1_1461357812735_2859"><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">I don't get it, but I always say "I am not that smart, but I can lift a lot" ;-)</span></div></div><div id="yiv5732946910yui_3_16_0_ym19_1_1461357812735_2859"><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">Hank</span></div></div><div><div class="yiv5732946910MsoNormal" style="margin-bottom:12.0pt;background:white;"><span style="font-size:9.0pt;"> </span></div></div><div><div><div><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:10.0pt;">On Friday, April 22, 2016 2:21 PM, Hugh Fulton via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</span><span style=""></span></div></div><div class="yiv5732946910MsoNormal" style="margin-bottom:12.0pt;background:white;"><span style=""> </span></div><div><div id="yiv5732946910"><div><div><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:11.0pt;">Hank, I think you just found the accelerator pedal on the car. </span><span style=""></span></div></div><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:11.0pt;">All yours, Sean.</span><span style=""></span></div></div><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:11.0pt;"> </span><span style=""></span></div></div><div><div><div class="yiv5732946910MsoNormal" style="background:white;"><span lang="EN-NZ" style="font-size:11.0pt;">Hugh</span><span style=""></span></div></div></div><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:11.0pt;"> </span><span style=""></span></div></div><div id="yiv5732946910yqt42335"><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm;"><div><div class="yiv5732946910MsoNormal" style="background:white;"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;"> Personal_Submersibles [<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <b>On Behalf Of </b>hank pronk via Personal_Submersibles<br clear="none"><b>Sent:</b> Saturday, 23 April 2016 5:38 a.m.<br clear="none"><b>To:</b> Personal Submersibles General Discussion<br clear="none"><b>Subject:</b> [PSUBS-MAILIST] head strength</span><span style=""></span></div></div></div></div><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style=""> </span></div></div><div><div id="yiv5732946910yui_3_16_0_ym19_1_1461346333504_2586"><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">Hi Sean,</span><span style=""></span></div></div></div><div id="yiv5732946910yui_3_16_0_ym19_1_1461346333504_2586"><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">I have been studying the head maximum pressure chart on Psubs and found that the pressure rating increases the same amount proportionately with thickness.</span><span style=""></span></div></div></div><div id="yiv5732946910yui_3_16_0_ym19_1_1461346333504_2586"><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">Is there a limit to this? </span><span style=""></span></div></div></div><div id="yiv5732946910yui_3_16_0_ym19_1_1461346333504_2586"><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">Thank you</span><span style=""></span></div></div></div><div id="yiv5732946910yui_3_16_0_ym19_1_1461346333504_2586"><div><div class="yiv5732946910MsoNormal" style="background:white;"><span style="font-size:9.0pt;">Hank</span><span style=""></span></div></div></div></div></div></div></div></div><div class="yiv5732946910MsoNormal" style="background:white;"><span style=""> </span></div><div id="yiv5732946910yqt05853"><div class="yiv5732946910MsoNormal" style="background:white;"><span 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