<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_1473795392853_3005"><span>James,</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3004" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3003">why do you want to drag your dog around behind your submarine?</span></div><div id="yui_3_16_0_ym19_1_1473795392853_2958" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_2968"> I have thought of having a float that I can send up when ascending,</span></div><div id="yui_3_16_0_ym19_1_1473795392853_2973" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_2993">to alert surface boats to my position. The idea is to send it up from about </span></div><div id="yui_3_16_0_ym19_1_1473795392853_3021" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3022">the 20 - 30ft mark, & have a retracting mechanism to wind in the slack.</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3033" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3034">There are plenty of divers reels to utilize as a starting point. Lasse's thread</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3097" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3096">on using a pneumatic driver got me thinking that a simple pneumatic turbine</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3099" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3098">with a feed pressure of around 4psi would pull any slack line in & let a large</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3104" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3106">enough float pull it out. </span></div><div id="yui_3_16_0_ym19_1_1473795392853_3137" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3136">It may be a bit more complex in your scenario, as you will have the force from</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3138" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3220">drag to consider.</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3154" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3153">Other thoughts are to start with the divers reel & copy a retracting mechanism</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3189" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3190">from somewhere, but using a 316 stainless clock spring of the right size & torsion.</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3219" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3221">Let us know how you get on.</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3227" dir="ltr"><span id="yui_3_16_0_ym19_1_1473795392853_3233">Alan</span></div><div id="yui_3_16_0_ym19_1_1473795392853_3011" dir="ltr"><span></span><br></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1473795392853_2870"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1473795392853_2943" style="display: block;"> <div id="yui_3_16_0_ym19_1_1473795392853_2942" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1473795392853_2941" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1473795392853_2954" dir="ltr"> <font id="yui_3_16_0_ym19_1_1473795392853_2955" face="Arial" size="2"> <hr size="1" id="yui_3_16_0_ym19_1_1473795392853_2956"> <b><span style="font-weight: bold;">From:</span></b> James Frankland 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> Tuesday, September 13, 2016 11:35 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] Retractable Reel<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1473795392853_2940"><br><div id="yiv4485430285"><div id="yui_3_16_0_ym19_1_1473795392853_2939" dir="ltr"><div id="yui_3_16_0_ym19_1_1473795392853_2953">Anyone got any ideas for a retractable reel? I need to have a SMB but I don't want rope trailing around all over the place.</div><div id="yui_3_16_0_ym19_1_1473795392853_2946"> </div><div id="yui_3_16_0_ym19_1_1473795392853_2945">I was thinking of something like one of those automatic retracting dog leads. So it will auto wind up and down. </div><div id="yui_3_16_0_ym19_1_1473795392853_2944"> </div><div>Ive searched for something suitable off the shelf but cant find anything.</div><div id="yui_3_16_0_ym19_1_1473795392853_2938"> </div><div id="yui_3_16_0_ym19_1_1473795392853_2947">I don't have a through hull available for a manual winding one.</div><div id="yui_3_16_0_ym19_1_1473795392853_3116"> </div><div id="yui_3_16_0_ym19_1_1473795392853_2948">Im temped to use 2 of those dog leads. One on the bobber, one on the boat with them joined in the middle. That would give me about 20 meters. Of course, they would disintegrate after the first use, but ive got several old ones at home that could be sacrificed.</div><div id="yui_3_16_0_ym19_1_1473795392853_2949"> </div><div id="yui_3_16_0_ym19_1_1473795392853_2950">Or, some sort of retracting device that could be put inside the bobber?</div><div id="yui_3_16_0_ym19_1_1473795392853_2952"> </div><div id="yui_3_16_0_ym19_1_1473795392853_2951">any thoughts?<br><br>regards</div><div>James</div></div></div><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org" ymailto="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>