<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 id="yui_3_16_0_ym19_1_1466986723588_2882"><span>Hi Kieth,</span></div><div id="yui_3_16_0_ym19_1_1466986723588_2882"><span id="yui_3_16_0_ym19_1_1466986723588_3038">My understanding is the aircraft units are noisy, I assume that is the air units. They are hard to find in guaranteed working condition for a price that works for me. If you know of any for a descent price-please let me know.</span></div><div id="yui_3_16_0_ym19_1_1466986723588_2882"><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 Sunday, June 26, 2016 6:16 PM, k6fee via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv8472469698"><div><div>Hank, </div><div><br clear="none"></div><div>Try using a gyro compass ( or atifical horizon) from an aircraft. They sre either air, vaccum or electric powered.</div><div><br clear="none"></div><div>Keith </div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none"></div><div id="yiv8472469698composer_signature"><div style="font-size:85%;color:#575757;">Sent from my Verizon, Samsung Galaxy smartphone</div></div><div><br clear="none"></div><div class="yiv8472469698yqt1478440611" id="yiv8472469698yqt38070"><div style="font-size:100%;color:#000000;"><div>-------- Original message --------</div><div>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> </div><div>Date: 6/26/16 4:11 PM (GMT-08:00) </div><div>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org> </div><div>Subject: [PSUBS-MAILIST] gyro compass </div><div><br clear="none"></div></div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div dir="ltr" id="yiv8472469698yui_3_16_0_ym19_1_1466982389727_2659">I am going to try to make a gyro compass, looks doable. I don't care about what direction I am going-I just want to go in a strait line. I will point the sub in the direction I want to go at the surface, then turn on the gyro and sink. Then I can just follow the gyro.</div><div id="yiv8472469698yui_3_16_0_ym19_1_1466982389727_2659">Hank</div></div></div></div></div><br><div class="yqt1478440611" id="yqt03987">_______________________________________________<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>