<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1497629837802_14373"><span></span></div><div id="yui_3_16_0_ym19_1_1497629837802_14373"><span>I am sure you will get the kinks worked out. Nice work so far Brian.</span></div><div id="yui_3_16_0_ym19_1_1497629837802_14373"><span><br></span></div><div id="yui_3_16_0_ym19_1_1497629837802_14373"><span>Jon</span></div><div id="yui_3_16_0_ym19_1_1497629837802_14373"><span><br></span></div> <div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1497629837802_14295"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1497629837802_14290" style="display: block;"> <div style="font-family: times new roman, new york, times, serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1497629837802_14289"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1497629837802_14288"> <div dir="ltr" id="yui_3_16_0_ym19_1_1497629837802_14294"><font size="2" face="Arial" id="yui_3_16_0_ym19_1_1497629837802_14395"> On Thursday, June 15, 2017 10:45 PM, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1497629837802_14287"><div id="yiv2641285118"><div style="font-family:Arial, sans-serif;font-size:10pt;" id="yui_3_16_0_ym19_1_1497629837802_14286"><div id="yui_3_16_0_ym19_1_1497629837802_14293">Hank,</div><div id="yui_3_16_0_ym19_1_1497629837802_14292"> My original intention was to use that forward tank as a trim tank and I also had a idea that I would change orientation and go vertical like the Scripps ship "Flip" , which I pretty much almost did today! But now I'm just concerned with having a working sub for the time being. When I made the forward trim tank it needed to be able to take the same pressure of the hull but I think I over did it a bit and used too heavy a gauge pipe . I'm not getting the buoyancy that I need , it was difficult to calculate what the weight of the ferro cement would be in water up in the front there. </div><div id="yui_3_16_0_ym19_1_1497629837802_14291"> </div><div id="yui_3_16_0_ym19_1_1497629837802_14285"> I ran most all the air out of the MBT and at the end the nose took a nose dive. I think the best thing would be to put a big cylinder of synaptic foam in place of the tank I have now , that way I could add extra compressed air cylinders if there is too much buoyancy , or lead to find the balance point. </div><div id="yui_3_16_0_ym19_1_1497629837802_14396"> </div><div id="yui_3_16_0_ym19_1_1497629837802_14367"> One thing that I'm extremely pleased about the freeboard when the MBT is filled with air, I have nearly 4 ft to the top of the hatch.</div><div id="yui_3_16_0_ym19_1_1497629837802_14366"> </div><div id="yui_3_16_0_ym19_1_1497629837802_14365">Brian</div><div id="yui_3_16_0_ym19_1_1497629837802_14364"> </div><div id="yui_3_16_0_ym19_1_1497629837802_14315"> <br></div></div></div></div> </div> </div> </div></div></body></html>