<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1522745464962_15642"><span></span></div><div id="yui_3_16_0_ym19_1_1522745464962_15572" dir="ltr"><span id="yui_3_16_0_ym19_1_1522745464962_15573">Assuming the tubing was 1/2" inside diameter, I calculated a volume of 10.44 ounces was displaced which is almost exactly 10% of the housing volume. I think that represents an increase of about 3psi in a sealed housing, but I'm not confident of that number.</span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1522745464962_15518"><br></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1522745464962_15518">Jon<br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1522745464962_15522" style="display: block;"> <div style="font-family: times new roman, new york, times, serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1522745464962_15521"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1522745464962_15520"> <div dir="ltr" id="yui_3_16_0_ym19_1_1522745464962_15519"> <font size="2" face="Arial" id="yui_3_16_0_ym19_1_1522745464962_15570"> <hr size="1" id="yui_3_16_0_ym19_1_1522745464962_15571"> <b><span style="font-weight:bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> PSubs <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Monday, April 2, 2018 10:54 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] motor pod testing<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1522745464962_15523"><br><div id="yiv1006237414"><div style="font-family:Arial, sans-serif;font-size:10pt;" id="yui_3_16_0_ym19_1_1522745464962_15525"><div id="yui_3_16_0_ym19_1_1522745464962_15524">Hi All , Tested my motor pods today for about an hour at about 3/4 maximum speed. Had about 8 feet of 1/2" vinyl tubing coming from the top of the motors going straight up into the air and hanging from my overhead I beams. Had the vinyl tubing connected to small inner tubes that had the air evacuated out of them. It was a cool day ( overcast, 60 degrees) . I ran the motors for over an hour, by the end of the hour the wd40 had climbed the whole 8 feet of tubing to the base of the inner tube. The motor pods were warm. If the sub had been in the water I don't think I would have had as much expansion of the oil. So I think that is going to work pretty good. Gives me a chance to run the batteries down significantly to see how my battery charger works with drained batteries, and how long it takes to bring them back up.</div><div id="yui_3_16_0_ym19_1_1522745464962_15526"> </div><div id="yui_3_16_0_ym19_1_1522745464962_15527">Brian</div><div id="yui_3_16_0_ym19_1_1522745464962_15528"> </div><div id="yui_3_16_0_ym19_1_1522745464962_15529"> </div></div></div>_______________________________________________<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>