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<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>
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<DIV>Hi Hank,</DIV>
<DIV><BR></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></DIV>
<DIV><BR></DIV>
<DIV>Best,</DIV>
<DIV><BR></DIV>
<DIV>Alec</DIV></DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Sat, Nov 12, 2016 at 10:54 PM, via
Personal_Submersibles <SPAN dir=ltr><<A
title=mailto:personal_submersibles@psubs.org
target=_blank>personal_submersibles@psubs.org</A>></SPAN> wrote:<BR>
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style="PADDING-LEFT: 1ex; BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex"><U></U>
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<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>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 11/12/2016 7:49:08 P.M. Central Standard Time, <A
title=mailto:personal_submersibles@psubs.org
target=_blank>personal_submersibles@psubs.<WBR>org</A> writes:</DIV>
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<DIV id=m_-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=m_-7117383588319342497yui_3_16_0_ym19_1_1479001374322_5258>Hank</DIV></DIV><BR><BR>______________________________<WBR>_________________<BR>Personal_Submersibles
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