<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>Alan,</span></div><div><span>The motors are air filled with upgraded cartridge seals. No compensation required. I was thinking I could run them on 48 volts if they provide enough power to move the sub. I will do a test at the lake tomorrow, I tried in a garbage pail, all I did was rotate the water lol.</span></div><div><span>Hank</span></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 Tuesday, April 26, 2016 6:55 PM, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv9567319687"><div><div>Hank,</div><div>are they oil filled motors?</div><div>I am thinking that if they aren't, then you might get away with drawing</div><div>more amps on a lower voltage for the same load, if you could keep the</div><div>motor cooler with oil compensation. You could put a temperature sensor</div><div> in the thruster to make sure you don't over heat it.</div><div>I intend to do some temperature comparisons between oil & air filled</div><div>motors in the next Month.</div><div>Cheers Alan<br clear="none">Sent from my iPad</div><div class="yiv9567319687yqt3631361320" id="yiv9567319687yqt82841"><div><br clear="none">On 27/04/2016, at 11:53 am, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div id="yiv9567319687yui_3_16_0_ym19_1_1461714600659_3086">HELP,,,</div><div id="yiv9567319687yui_3_16_0_ym19_1_1461714600659_3086">Turns out my Perry thrusters are not 36V but 120 Vdc. I can only manage 48V dc from Gamma's battery bank. Can I step the voltage up with something.</div><div id="yiv9567319687yui_3_16_0_ym19_1_1461714600659_3086">Hank</div></div></div></blockquote></div><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br clear="none"></div></blockquote></div></div><br><div class="yqt3631361320" id="yqt98694">_______________________________________________<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>