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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:16.0pt'>Dear guys,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>I would like to share with you my initial plan for the Dry Ambient sub I am building.  I would love to hear any suggestions or comments about my calculations.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>The Dimensions of the Dry Cock pit is: width = 0.7 m, Length = 1.6 m, and Height = 0.85 m.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>This will give a total volume of: 0.952 m3.  The Cock pit will produce an upward Buoyant force of about 950 kg (I do understand that kg is not a unit of force, but I do this for sake of clarity).   <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>The total Mass of the Sub is around 850 Kg.  So in order to make sure that the sub dive, its weight (or mass) has to be heavier than the Buoyant force produced by the <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>Cock pit, so I will add about 100 kg of Lead to compensate.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>I did the calculations of the Center of Gravity and the Center of Buoyancy, from which I obtained the MetaCentric height.  <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>this calculations indicated that the design will keep the sub at a stable condition on surface and while descending, which is very important and critical.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>I can provide this calculations later on if anyone interested.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>Here is a rough diagram indicating the thoughts so far<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:16.0pt'>On surface<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
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<o:lock v:ext="edit" aspectratio="f" />
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<v:imagedata src="cid:image033.emz@01D3A7EC.B2830DD0" o:title="" />
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<v:imagedata src="cid:image018.png@01D3A7EC.B2830DD0" o:title="" />
<o:lock v:ext="edit" aspectratio="f" />
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<v:imagedata src="cid:image035.png@01D3A7EC.B2830DD0" o:title="" />
<o:lock v:ext="edit" aspectratio="f" />
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<v:imagedata src="cid:image020.emz@01D3A7EC.B2830DD0" o:title="" />
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<v:imagedata src="cid:image036.png@01D3A7EC.B2830DD0" o:title="" />
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<v:imagedata src="cid:image039.png@01D3A7EC.B2830DD0" o:title="" />
<o:lock v:ext="edit" aspectratio="f" />
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<v:imagedata src="cid:image040.png@01D3A7EC.B2830DD0" o:title="" />
<o:lock v:ext="edit" aspectratio="f" />
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<v:imagedata src="cid:image018.png@01D3A7EC.B2830DD0" o:title="" />
<o:lock v:ext="edit" aspectratio="f" />
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<v:imagedata src="cid:image035.png@01D3A7EC.B2830DD0" o:title="" />
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<v:imagedata src="cid:image047.emz@01D3A7EC.B2830DD0" o:title="" />
</v:shape><v:shape id="Rectangle_x0020_42" o:spid="_x0000_s1026" type="#_x0000_t75" style='position:absolute;margin-left:109.4pt;margin-top:5.6pt;width:46.5pt;height:60pt;z-index:251698176;visibility:visible;mso-width-percent:0;mso-height-percent:0;mso-wrap-distance-left:9pt;mso-wrap-distance-top:0;mso-wrap-distance-right:9pt;mso-wrap-distance-bottom:0;mso-position-horizontal:absolute;mso-position-horizontal-relative:text;mso-position-vertical:absolute;mso-position-vertical-relative:text;mso-width-percent:0;mso-height-percent:0;mso-width-relative:margin;mso-height-relative:margin'>
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</v:shape><![endif]--><![if !vml]><span style='mso-ignore:vglayout'><table cellpadding=0 cellspacing=0 align=left><tr><td width=14 height=7></td><td width=62></td><td width=70></td><td width=62></td></tr><tr><td height=4></td><td colspan=2></td><td rowspan=2 align=left valign=top><img width=62 height=80 src="cid:image037.png@01D3A7EC.B2830DD0" alt="2 " v:shapes="Rectangle_x0020_42 _x0000_s1029"></td></tr><tr><td height=76></td><td rowspan=2 align=left valign=top><img width=62 height=104 src="cid:image038.png@01D3A7EC.B2830DD0" alt="2 " v:shapes="Rectangle_x0020_41 _x0000_s1028"></td></tr><tr><td height=28></td></tr></table></span><![endif]><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><br style='mso-ignore:vglayout' clear=ALL><p class=MsoNormal><span style='font-size:16.0pt'>                       Weight = 950 Kg<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>Underwater, the Buoyant Force from the pit will equate the downward weight of the sub, and it will maneuver using the Motors.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>At a final note, the cockpit will have an exit hole at the bottom.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'>regards<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:16.0pt'><o:p> </o:p></span></p></div></body></html>