<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><span>Thank you guys, that makes complete </span>sense. I am reconfiguring Elementary 3000 and want enough weight in the drop weight and no more. I have to add buoyancy to cover that weight. Luckily my balance is not an issue because I have a lot of buoyancy from trawl floats near the top of the sphere.</div><div id="yui_3_16_0_ym19_1_1479041151307_7527">Hank</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 Saturday, November 12, 2016 10:02 PM, via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv2749864148"><div><font id="yiv2749864148role_document" color="#000000" size="2" face="Arial">
</font><div>Hank,</div>
<div>The spreadsheet I referenced on the Psubs site calculates CG and CB with
and without the drop weight. Cliff designed it, and it's a fabulous
tool. Besides the calculator, it also sets forth the standards.</div>
<div>Jim</div>
<div> </div>
<div>
<div>In a message dated 11/12/2016 10:54:47 P.M. Central Standard Time,
personal_submersibles@psubs.org writes:</div>
<blockquote style="PADDING-LEFT:5px;MARGIN-LEFT:5px;BORDER-LEFT:blue 2px solid;"><font style="BACKGROUND-COLOR:transparent;" color="#000000" size="2" face="Arial">
</font><div dir="ltr">
<div>Hi Hank,</div>
<div><br clear="none"></div>
<div>The drop weight contributes to transverse stability. Be sure to calculate
what happens to stability when it's dropped. If you have a large weight, it is
quite possible the sub's new center of gravity could end up above the center
of buoyancy. </div>
<div><br clear="none"></div>
<div><br clear="none"></div>
<div>Best,</div>
<div><br clear="none"></div>
<div>Alec</div></div>
<div class="yiv2749864148gmail_extra"><br clear="none">
<div class="yiv2749864148gmail_quote">On Sat, Nov 12, 2016 at 10:54 PM, via
Personal_Submersibles <span dir="ltr"><<a rel="nofollow" shape="rect" title="mailto:personal_submersibles@psubs.org" href="">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none">
<blockquote class="yiv2749864148gmail_quote" style="PADDING-LEFT:1ex;BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;"><u></u>
<div class="yiv2749864148yqt7872717392" id="yiv2749864148yqt17970"><div id="yiv2749864148m_-7117383588319342497role_body" style="FONT-SIZE:10pt;FONT-FAMILY:Arial;COLOR:#000000;"><font id="yiv2749864148m_-7117383588319342497role_document" color="#000000" size="2" face="Arial">
</font><div><font size="3">Hank,</font></div>
<div><font size="3">Yes, there is a rule. The drop weight must be heavy
enough so that if all compartments were fully flooded except for the main
cabin, the release of the drop weight would cause the vessel to rise to the
surface. "All compartments" includes battery pods and anything else
that could take on water.</font></div>
<div><font size="3">Jim</font></div><span>
</span><div> </div>
<div>
<div>In a message dated 11/12/2016 7:49:08 P.M. Central Standard Time, <a rel="nofollow" shape="rect" title="mailto:personal_submersibles@psubs.org" href="">personal_submersibles@psubs. org</a> writes:</div>
<blockquote style="PADDING-LEFT:5px;MARGIN-LEFT:5px;BORDER-LEFT:blue 2px solid;"><font style="BACKGROUND-COLOR:transparent;" color="#000000" size="2" face="Arial">
</font><div style="FONT-SIZE:12px;FONT-FAMILY:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;COLOR:#000;BACKGROUND-COLOR:#fff;">
<div id="yiv2749864148m_-7117383588319342497yui_3_16_0_ym19_1_1479001374322_5258">Can
someone tell me what the proper weight of a drop weight is. There
must be a rule.</div>
<div id="yiv2749864148m_-7117383588319342497yui_3_16_0_ym19_1_1479001374322_5258">Hank</div></div><br clear="none"><br clear="none">______________________________ _________________<br clear="none">Personal_Submersibles
mailing list<br clear="none"><a rel="nofollow" shape="rect" title="mailto:Personal_Submersibles@psubs.org" href="">Personal_Submersibles@psubs. org</a><br clear="none"><a rel="nofollow" shape="rect" title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" 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"></blockquote></div></div></div><br clear="none">______________________________ _________________<br clear="none">Personal_Submersibles
mailing list<br clear="none"><a rel="nofollow" shape="rect" title="mailto:Personal_Submersibles@psubs.org" href="">Personal_Submersibles@psubs. org</a><br clear="none"><a rel="nofollow" shape="rect" title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" 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"><br clear="none"></blockquote></div><br clear="none"></div><br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles
mailing
list<br clear="none">Personal_Submersibles@psubs.org<br clear="none">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br clear="none"></blockquote></div></div></div><br><div class="yqt7872717392" id="yqt12697">_______________________________________________<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><br><br></div> </div> </div> </div></div></body></html>