
Great video Hank. One thing that stands out as a potential problem though, are the tabs that the bumper stops are mounted to on your swinging ballast tanks.  Given their size and orientation, it looks like the base welds there might be subject to a fair bit of force, and cycling (fatigue inducing) at that. I might be inclined to weld in some sort of webs or gussets to stiffen those tabs.<br><br>Also, you mention that the skids can be jettisoned. Can you elaborate on how that works? Do you become severely positively buoyant when that happens?<br><br>Sean<br><br><br><br><br>-------- Original Message --------<br>On Jul. 25, 2020, 06:11, hank pronk via Personal_Submersibles < personal_submersibles@psubs.org> wrote:<blockquote class="protonmail_quote"><br><html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false"><span><a href="https://www.youtube.com/watch?v=8HmyyLol294" rel="nofollow" target="_blank" class="enhancr_card_5931571499"></a></span><div><br></div><div id="ydp5f900a6eenhancr_card_5931571499" class="ydp5f900a6eyahoo-link-enhancr-card ydp5f900a6eymail-preserve-class ydp5f900a6eymail-preserve-style" style="max-width:400px;font-family:YahooSans, "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif" data-url="https://www.youtube.com/watch?v=8HmyyLol294" data-embed-url="https://www.youtube.com/embed/8HmyyLol294?feature=oembed" data-type="YENHANCER" data-size="MEDIUM" contenteditable="false"><a href="https://www.youtube.com/watch?v=8HmyyLol294" style="text-decoration:none !important;color:#000 !important" class="ydp5f900a6eyahoo-enhancr-cardlink" rel="nofollow" target="_blank"><table border="0" class="ydp5f900a6ecard-wrapper ydp5f900a6eyahoo-ignore-table" cellpadding="0" cellspacing="0" style="max-width:400px"><tbody><tr><td width="400"><table border="0" class="ydp5f900a6ecard ydp5f900a6eyahoo-ignore-table" cellpadding="0" cellspacing="0" width="100%" style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224, 228, 233);border-radius:2px"><tbody><tr><td class="ydp5f900a6ecard-primary-image-cell" background="https://s.yimg.com/lo/api/res/1.2/zD0hXbADimcg4ddhJIfA1g--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://i.ytimg.com/vi/8HmyyLol294/hqdefault.jpg.cf.jpg" bgcolor="#000000" valign="top" height="175" style="background-color: rgb(0, 0, 0); background-size: cover; position: relative; border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/lo/api/res/1.2/zD0hXbADimcg4ddhJIfA1g--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://i.ytimg.com/vi/8HmyyLol294/hqdefault.jpg.cf.jpg"/></v:rect><![endif]--><table border="0" class="ydp5f900a6ecard-overlay-container-table ydp5f900a6eyahoo-ignore-table" cellpadding="0" cellspacing="0" style="width:100%"><tbody><tr><td class="ydp5f900a6ecard-overlay-cell" background="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png" bgcolor="transparent" valign="top" style="background-color: transparent; border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png"/><v:textbox inset="0,0,20px,0"><![endif]--><table border="0" class="ydp5f900a6eyahoo-ignore-table" height="175" style="width: 100%; min-height: 175px;"><tbody><tr><td class="ydp5f900a6ecard-richInfo2" style="text-align:left;padding:15px 0 0 15px;vertical-align:top"></td><td class="ydp5f900a6ecard-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top"><div class="ydp5f900a6ecard-share-container"></div></td></tr></tbody></table><!--[if gte mso 9]></v:textbox></v:rect><![endif]--></td></tr></tbody></table></td></tr><tr><td><table border="0" align="center" class="ydp5f900a6ecard-info ydp5f900a6eyahoo-ignore-table" cellpadding="0" cellspacing="0" style="background:#fff;position:relative;z-index:2;width:100%;max-width:400px;border-radius:0 0 2px 2px;border-top:1px solid rgb(224, 228, 233)"><tbody><tr><td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;border-radius:0 0 0 2px"><img class="ydp5f900a6ecard-object-1 ydp5f900a6eyahoo-ignore-in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