<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hank,</div><div>the good news is it's a 10 times better option than you first thought!</div><div>Problem might be finding a number of cheap collapsible petrol containers.</div><div>You would want your drop weight to cover the loss of floatation of any</div><div>one container in case it was split! Otherwise you could be a dead duck</div><div>at 3000ft.</div><div>Cheers Alan <br><br><div>Sent from my iPad</div></div><div><br>On 13/06/2017, at 10:30 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_1_1497306542453_5826"><span>Alan,</span></div><div id="yui_3_16_0_1_1497306542453_5826" dir="ltr"><span>yes I am red in the face, better put a new battery in my calculator lol</span></div><div id="yui_3_16_0_1_1497306542453_5826" dir="ltr"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;"> <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 Monday, June 12, 2017 4:14 PM, Alan via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv3406827280"><div><div>Hank,</div><div>if you are getting 3lb of floatation per gallon then you need 184</div><div>gallons of gas. 184 x 3 = 552 ( near enough).</div><div>Cheers Alan<br clear="none"><br clear="none"><div>Sent from my iPad</div></div><div class="yiv3406827280yqt1659392404" id="yiv3406827280yqt75869"><div><br clear="none">On 13/06/2017, at 9:50 AM, 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:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv3406827280yui_3_16_0_1_1497303861663_7014"><span>Alan,</span></div><div dir="ltr" id="yiv3406827280yui_3_16_0_1_1497303861663_7244"><span id="yiv3406827280yui_3_16_0_1_1497303861663_7243">I need 550 lbs flotation and one imp gallon of water is 10 lbs and gas is 7 lbs that gives me 3 lbs buoyancy per imp gallon that means I need 1650 gallons of gas.</span></div><div dir="ltr" id="yiv3406827280yui_3_16_0_1_1497303861663_7244"><span>Hank</span></div> <div class="yiv3406827280qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv3406827280yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <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 Monday, June 12, 2017 3:43 PM, Alan 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="yiv3406827280y_msg_container"><div id="yiv3406827280"><div><div>Hank,</div><div>are you sure that's right!</div><div>That would give 1900kg of floatation ( nearly 2 ton)</div><div>That is based on gasoline being .71 of the weight of water. So every litre</div><div>of gas gives you about 290 grams of floatation. </div><div>Metric system is much easier for calculating these things.</div><div>Cheers Alan<br clear="none"><br clear="none"><div>Sent from my iPad</div></div><div class="yiv3406827280yqt3558744322" id="yiv3406827280yqt25241"><div><br clear="none">On 12/06/2017, at 11:42 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:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div><span>Alan,</span></div><div id="yiv3406827280yui_3_16_0_1_1497267436197_4222"><span>Those are nice, I can see other uses for them. If I use gasoline, I would need about 1,750 imperial gallons for Elementary. I was mistaken about the liquid paraffin, gasoline is better.</span></div> <div class="yiv3406827280qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv3406827280yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <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 Sunday, June 11, 2017 11:36 PM, Alan 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="yiv3406827280y_msg_container"><div id="yiv3406827280"><div><div>Maybe something like this collapsable plastic fuel tank, </div><div id="yiv3406827280AppleMailSignature">inside a protective fibreglass housing, or a grate arrangement.</div><div id="yiv3406827280AppleMailSignature"> <a rel="nofollow" shape="rect" target="_blank" href="https://www.bdoutdoors.com/atl-fuel-bladder-extra/">https://www.bdoutdoors.com/atl-fuel-bladder-extra/</a></div><div id="yiv3406827280AppleMailSignature">Alan</div><div id="yiv3406827280AppleMailSignature"><br clear="none">Sent from my iPad</div><div class="yiv3406827280yqt8083381160" id="yiv3406827280yqt55238"><div><br clear="none">On 12/06/2017, at 12:28 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:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv3406827280yui_3_16_0_1_1497226972703_7618"><span>Alan,</span></div><div id="yiv3406827280yui_3_16_0_1_1497226972703_7618"><span>Yes I have, it is very simple and effective. There are of coarse some hazardous logistical problems not to mention </span>environmental concerns. I would opt for diesel fuel to reduce the fire hazard. Any time you have plastic and gas it is dangerous. Last week I did a barge job replacing dock piles. When I walked up and down the plastic dock floats, every time I touched the steel piles I got a spark. Actually Liquid paraffin is even better at .8g\cc</div><div id="yiv3406827280yui_3_16_0_1_1497226972703_7618">Hank</div> <div class="yiv3406827280qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv3406827280yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <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 Sunday, June 11, 2017 5:32 PM, Alan 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="yiv3406827280y_msg_container"><div id="yiv3406827280"><div><div>Hank,</div><div id="yiv3406827280AppleMailSignature">have you looked at using gasoline?</div><div id="yiv3406827280AppleMailSignature">More volume required for the same floatation as syntactic foam,</div><div id="yiv3406827280AppleMailSignature">but apart from the holding tanks it would cost you nothing, as you</div><div id="yiv3406827280AppleMailSignature">could use it after the dive. If you designed right you could fill the tanks</div><div id="yiv3406827280AppleMailSignature">at your destination.</div><div id="yiv3406827280AppleMailSignature">Alan<br clear="none"><br clear="none">Sent from my iPad</div><div class="yiv3406827280yqt4014048267" id="yiv3406827280yqt74626"><div><br clear="none">On 12/06/2017, at 6:03 AM, 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:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv3406827280yui_3_16_0_1_1497190369061_16429">Greg,</div><div dir="ltr" id="yiv3406827280yui_3_16_0_1_1497190369061_16628">that sounds good, I would love to find a more cost effective foam. I still want to build one more sub that goes much deeper, but the foam cost is not manageable. I estimate I can build a Titanic capable sub for 100,000 and 80,000 of that is foam. ;-(</div><div dir="ltr" id="yiv3406827280yui_3_16_0_1_1497190369061_16629">Hank</div><div class="yiv3406827280qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv3406827280yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <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 Sunday, June 11, 2017 8:29 AM, 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"></font></div> <br clear="none"><br clear="none"> <div class="yiv3406827280y_msg_container"><div id="yiv3406827280"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv3406827280yui_3_16_0_1_1497190369061_3501"><span>Greg,</span></div><div dir="ltr" id="yiv3406827280yui_3_16_0_1_1497190369061_3501"><span>There has to be good reason to make foam by other means than standard practices. Cost would be the biggest reason, and using wax will probably work, but is there a saving? Using wax </span>means you have to use a deeper rated sphere to offset the loss of reinforcement provided by the resin. I have no idea what the cost difference would be. Maybe the cost is still much better. When I look at Cliff's report, the resin is not the expensive part. Perhaps the direction should be, to look for a replacement for the spheres. In Cliff's report it shows the resin triples the sphere's performance. That implies that the true strength comes from the resin. Maybe a sawdust resin or a styrofoam granule resin is worth looking at also. Maybe it is a simple as air entrained resin?</div><div dir="ltr" id="yiv3406827280yui_3_16_0_1_1497190369061_3501">Fun to think about anyways.</div><div dir="ltr" id="yiv3406827280yui_3_16_0_1_1497190369061_3501">Hank</div> <div class="yiv3406827280qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv3406827280yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv3406827280yqt8241857065" id="yiv3406827280yqt63795"><div dir="ltr"><font size="2" face="Arial"> On Sunday, June 11, 2017 6:22 AM, 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"></font></div> <br clear="none"><br clear="none"> <div class="yiv3406827280y_msg_container"><div id="yiv3406827280"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div><span>Hi Scott,</span></div><div><span>Thanks for the offer, but I need foam for 3,000 feet.</span></div><div><span>Hank</span></div> <div class="yiv3406827280qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv3406827280yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv3406827280yqt0903242652" id="yiv3406827280yqt14923"><div dir="ltr"><font size="2" face="Arial"> On Saturday, June 10, 2017 9:03 PM, Scott Waters 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="yiv3406827280y_msg_container"><div id="yiv3406827280"><div><div>Hank,</div><div><br clear="none"></div><div>Hola from Costa Rica!</div><div><br clear="none"></div><div>Depends on if they are glass or carbon fiber spheres and what size they are. They are all pretty durable. We are actually cutting up the foam on Pisces and reattaching it to get the shapes we want. </div><div><br clear="none"></div><div>I do have a ton of syntactic foam that is cert to 400m that I'd sell you for super cheap. Like all of it for $200</div><div><br clear="none"></div><div>Thanks,</div><div>Scott Waters</div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none"></div><div id="yiv3406827280composer_signature"><div style="font-size:85%;color:#575757;">Sent from my U.S. Cellular® Smartphone</div></div><div><br clear="none"></div><div class="yiv3406827280yqt4119055720" id="yiv3406827280yqt61652"><div style="font-size:100%;color:#000000;"><div>-------- Original message --------</div><div>From: 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>> </div><div>Date: 6/10/17 12:38 PM (GMT-06:00) </div><div>To: Personal Submersibles General Discussion <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> </div><div>Subject: [PSUBS-MAILIST] syntactic foam. </div><div><br clear="none"></div></div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv3406827280yui_3_16_0_1_1497115959959_2837">I have an idea, but not sure if it will work. My idea is to fill a neutrally buoyant container with macro and micro spheres. After the container is as full as possible, then fill with an environmentally friendly oil. This would be more buoyant than using a resin and less complicated and cheaper. My concern is, how well will the spheres stand up against breaking from being in contact with the other spheres and the container. Are these spheres delicate? </div><div id="yiv3406827280yui_3_16_0_1_1497115959959_2837">Hank</div></div></div></div></div><div class="yiv3406827280yqt4119055720" id="yiv3406827280yqt55244">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div><div class="yiv3406827280yqt0903242652" id="yiv3406827280yqt24984">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" 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