<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1467022625929_4050"><span>Hank, </span></div><div id="yui_3_16_0_ym19_1_1467022625929_3987" dir="ltr"><span id="yui_3_16_0_ym19_1_1467022625929_3986">why would you want a turn & bank indicator above some sought of compass?</span></div><div id="yui_3_16_0_ym19_1_1467022625929_3988" dir="ltr"><span id="yui_3_16_0_ym19_1_1467022625929_3989">There are a multitude of inexpensive underwater compasses that scuba divers use,</span></div><div id="yui_3_16_0_ym19_1_1467022625929_4069" dir="ltr"><span id="yui_3_16_0_ym19_1_1467022625929_4068">although they may be a bit small to be read at a distance. Possibly there is some</span></div><div id="yui_3_16_0_ym19_1_1467022625929_4076" dir="ltr"><span id="yui_3_16_0_ym19_1_1467022625929_4075">issue with the compression of the oil stopping your compass from functioning?</span></div><div id="yui_3_16_0_ym19_1_1467022625929_4111" dir="ltr"><span id="yui_3_16_0_ym19_1_1467022625929_4110">Mounting the compass outside the hull seems to be standard practice & I haven't</span></div><div id="yui_3_16_0_ym19_1_1467022625929_4112" dir="ltr"><span id="yui_3_16_0_ym19_1_1467022625929_4113">heard of any failing. Perhaps someone with previous issues with them could comment.</span></div><div id="yui_3_16_0_ym19_1_1467022625929_4128" dir="ltr"><span>Alan</span></div><div id="yui_3_16_0_ym19_1_1467022625929_4057" dir="ltr"><span> </span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1467022625929_3990"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1467022625929_3999" style="display: block;"> <div id="yui_3_16_0_ym19_1_1467022625929_3998" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1467022625929_3997" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1467022625929_3996" dir="ltr"> <font id="yui_3_16_0_ym19_1_1467022625929_3995" face="Arial" size="2"> <hr size="1" id="yui_3_16_0_ym19_1_1467022625929_4032"> <b><span style="font-weight: bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Monday, June 27, 2016 10:37 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] gyro compass<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1467022625929_4004"><br><div id="yiv4304485160"><div id="yui_3_16_0_ym19_1_1467022625929_4003"><div id="yui_3_16_0_ym19_1_1467022625929_4002" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><div id="yui_3_16_0_ym19_1_1467022625929_4018"><span>Kieth,</span></div><div id="yui_3_16_0_ym19_1_1467022625929_4001" dir="ltr"><span id="yui_3_16_0_ym19_1_1467022625929_4000">I stand corrected, a turn and bank indicator is just the ticket and tons of them on </span>eBay for cheap. I was focusing on compass only, but these indicators are much cheaper and more available. </div><div dir="ltr">Thanks' for the tip</div><div id="yui_3_16_0_ym19_1_1467022625929_4031" dir="ltr">Hank</div> <div class="yiv4304485160qtdSeparateBR" id="yui_3_16_0_ym19_1_1467022625929_4017"><br clear="none"><br clear="none"></div><div class="yiv4304485160yahoo_quoted" id="yui_3_16_0_ym19_1_1467022625929_4007" style="display: block;"> <div id="yui_3_16_0_ym19_1_1467022625929_4006" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div id="yui_3_16_0_ym19_1_1467022625929_4005" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div class="yiv4304485160yqt8033921041" id="yiv4304485160yqt19908"><div id="yui_3_16_0_ym19_1_1467022625929_4016" dir="ltr"><font id="yui_3_16_0_ym19_1_1467022625929_4015" face="Arial" size="2"> On Sunday, June 26, 2016 6:25 PM, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv4304485160y_msg_container" id="yui_3_16_0_ym19_1_1467022625929_4010"><div id="yiv4304485160"><div id="yui_3_16_0_ym19_1_1467022625929_4009"><div id="yui_3_16_0_ym19_1_1467022625929_4008" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><div id="yiv4304485160yui_3_16_0_ym19_1_1466986723588_2882"><span>Hi Kieth,</span></div><div id="yiv4304485160yui_3_16_0_ym19_1_1466986723588_2882"><span id="yiv4304485160yui_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="yiv4304485160yui_3_16_0_ym19_1_1466986723588_2882"><span>Hank</span></div> <div class="yiv4304485160qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv4304485160yahoo_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 class="yiv4304485160yqt7308228756" id="yiv4304485160yqt13119"><div dir="ltr"><font face="Arial" size="2"> On Sunday, June 26, 2016 6:16 PM, k6fee via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv4304485160y_msg_container"><div id="yiv4304485160"><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="yiv4304485160composer_signature"><div style="color: rgb(87, 87, 87); font-size: 85%;">Sent from my Verizon, Samsung Galaxy smartphone</div></div><div><br clear="none"></div><div class="yiv4304485160yqt1478440611" id="yiv4304485160yqt38070"><div style="color: rgb(0, 0, 0); font-size: 100%;"><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: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><div id="yiv4304485160yui_3_16_0_ym19_1_1466982389727_2659" dir="ltr">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="yiv4304485160yui_3_16_0_ym19_1_1466982389727_2659">Hank</div></div></div></div></div><br clear="none"><div class="yiv4304485160yqt1478440611" id="yiv4304485160yqt03987">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div><br clear="none"><div class="yiv4304485160yqt7308228756" id="yiv4304485160yqt25744">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div><br><div class="yqt8033921041" id="yqt23127">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a href="mailto:Personal_Submersibles@psubs.org" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>