<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Thanks Hank,</div><div id="AppleMailSignature">I can't recall whats below the water line, but was thinking that the volume</div><div id="AppleMailSignature">of any ballast tank around that sphere would have to be at least as much</div><div id="AppleMailSignature">as the volume of what is showing out of the water plus a litre of air for every</div><div id="AppleMailSignature">kilo of weight above the waterline. ( I think this is right) If Brian is relying on</div><div id="AppleMailSignature">the filling of ballast tanks in the tail section to bring the spherical section under</div><div id="AppleMailSignature">the water it won't happen!</div><div id="AppleMailSignature">Alan<br><br>Sent from my iPad</div><div><br>On 7/11/2017, at 10:59 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="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div>Alan,</div><div>You may be underestimating the air volume in the main MBT. I also predicted the sub would do a nose dive suddenly, but that was before the addition of the new light weight second MBT up front. There is enough MBT above the water line when most of the sub is submerged. I think Brian has it, pity he couldnt de a test dip.</div><div>Hank</div><div><br></div><div><br></div>
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On Monday, November 6, 2017, 2:47:46 PM MST, Alan via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
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<div><div id="yiv2447337547"><div><div>Hi Brian,</div><div id="yiv2447337547AppleMailSignature">I am not going to win a popularity contest here, but it looks like</div><div id="yiv2447337547AppleMailSignature">you are going to need a ton more lead & maybe build an extra ballast tank</div><div id="yiv2447337547AppleMailSignature">around the spherical portion! It seems way too high out of the water.</div><div id="yiv2447337547AppleMailSignature">If you consider the volume & weight that you have above the water line; is that equal</div><div id="yiv2447337547AppleMailSignature">to the volume of air that you have in your ballast tanks? I.e. when the air is released</div><div id="yiv2447337547AppleMailSignature">is it going to be neutrally buoyant?</div><div id="yiv2447337547AppleMailSignature">It also looks like the ballast tank end will pivot downward from the spherical</div><div id="yiv2447337547AppleMailSignature">portion when the air is released, & you will have the submarine on a steep angle.</div><div id="yiv2447337547AppleMailSignature">You would need a lot of lead in the bottom of the sphere.</div><div id="yiv2447337547AppleMailSignature">I had to rebuild my ballast tanks & add a lot more lead to my sub, but it is</div><div id="yiv2447337547AppleMailSignature">nowhere near the size of yours!</div><div id="yiv2447337547AppleMailSignature">Would like to know what the opinion of other Psubbers is as I am open to</div><div id="yiv2447337547AppleMailSignature">criticism on this!</div><div id="yiv2447337547AppleMailSignature">Cheers Alan</div><div id="yiv2447337547AppleMailSignature"><br clear="none"></div><div id="yiv2447337547AppleMailSignature"><br clear="none"></div><div id="yiv2447337547AppleMailSignature"><br clear="none"><br clear="none">Sent from my iPad</div><div class="yiv2447337547yqt4405416224" id="yiv2447337547yqt78342"><div><br clear="none">On 7/11/2017, at 6:51 AM, Brian Cox 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="font-family:Arial, sans-serif;font-size:10pt;"><div>HI All, </div><div> Here's an enlarged pic of Esmae at dock, unfortunately I didn't take any video or too many pictures. But you can see a little better how it sits in the water. The fact that I didn't get a chance to submerge is really starting to bug me now! I still have some unanswered questions, namely if there would still be air in my main ballast when fully submerged. </div><div> </div><div>Brian</div><div> </div><div> </div></div></div></blockquote></div><blockquote type="cite"><div><Close-up-2.jpg></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><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></span><br clear="none"></div></blockquote></div></div><div class="yqt4405416224" id="yqt48853">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div></div>
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