<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_1_1439489292229_3608"><span id="yui_3_16_0_1_1439489292229_7746">Brian,</span></div><div id="yui_3_16_0_1_1439489292229_3608"><span id="yui_3_16_0_1_1439489292229_8126">I would add a few nipples and cap them off, you will want them down the road.</span></div><div id="yui_3_16_0_1_1439489292229_3608" dir="ltr"><span id="yui_3_16_0_1_1439489292229_4131">A trim tank may be a good idea for such a heavy sub, unless you have real powerful vertical thrusters. I find when I take a passenger, even my daughter Roman who is light as a feather, I am always quite over weight. That is no problem at all in a Gamma size sub because the vertical thrusters have enough jam to stop the sub hitting bottom. A trim tank would be good to keep you closer to ideal weight, or have lots of small weights to take out. I foolishly made two rather heavy lead weights. </span></div><div id="yui_3_16_0_1_1439489292229_3608" dir="ltr"><span id="yui_3_16_0_1_1439489292229_7480">Are you running your O2 through a ss nipple, is that okay, I am planning to do that for external O2. I remember talk about the K subs needing a Bronze fitting or something like that.</span></div><div id="yui_3_16_0_1_1439489292229_3608" dir="ltr"><span>Hank</span></div> <br><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 Thursday, August 13, 2015 11:52 AM, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br> </font> </div> <br><br> <div class="y_msg_container"><div id="yiv2034027631"><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>Hank,</div><div> Here are all my penetrations:</div><div> </div><div>Front hard ballast tank</div><div> 1. flood valve - 1/2" ss rod thru hull </div><div> 2. vent valve</div><div> 3. air inject - ss coupling</div><div> </div><div>Main ballast tank (soft)</div><div> 1. flood valve - ss 1/2" rod thru hull</div><div> 2. air inject</div><div> </div><div>mechanical penetrations:</div><div> 1. front flaps - ss 1/2" rod thru hull (all)</div><div> 2. back flaps</div><div> 3. motor turning ( steering )</div><div> </div><div>Breathing Oxygen - 3/4" coupling or smaller ( will bush)</div><div> </div><div>Flood Valve - 1 1/2" - ss coupling ( near bottom)</div><div> </div><div>main ballast HP air in - </div><div> #1 - 3/4" ss coupling</div><div> #2 - 3/4" ( will have bushings to 1/2" or smaller)</div><div> </div><div> </div><div>Gauges</div><div> 1. Temperature - 1/2" ss coupling</div><div> 2. Pressure - 1/2"</div><div> </div><div>Release buoy </div><div> 1. 1/2" SS rod thru hull</div><div> </div><div>Equalizing valve </div><div> 1. 3/4" coupling</div><div> </div><div>Drop weight</div><div> 1. 7/8" ss rod thu hull</div><div> </div><div>Hatch dog thu hull</div><div> 1. 7/8" ss rod</div><div> </div><div> Is there anything that I obviously forgot ?? All my electrical will be going through a separate viewport fitting.</div><div> </div><div>So far I have the front trim, hatch , but no air yet.</div><div> </div><div>Not sure if I want to have a small trim tank in the main cabin or not.</div><div> </div><div> </div><div>Brian</div><div> </div><div> </div><div> </div><div> </div><div> </div><div> </div></div></div><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></div></body></html>