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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>So he should have been straddling the tail….and….everyone knows to unplug the battery before the radio is turned off.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>I mentioned earlier that the rx COULD be turned off first and the motor is not SUPPOSED to start and that I trusted the electronics more than I trust someone holding the transmitter…..BUT….someone always has a grip on the airplane before any of this happens.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>So…this instance boils down to operator error even if the ESC did fail in this way….I’m not convinced that it really did.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>The Emcotec device is so much overkill….and liable to fail as well.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>If I was to use a disconnect I would do it as Simon pointed out….let’s say the black wire from the ESC and the black wire from the battery is all that needs to be outside the fuselage. Then, connect or disconnect as needed….no shorting plug, no extra weight, nothing to pull a chunk out of the fuselage….no expense.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>Even still though….I would have to rewire all the batteries and chargers….doable but time consuming.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Dave Harmon<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>NSRCA 586<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>K6XYZ[at]sbcglobal[dot]net<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Sperry, Ok.<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>Peter Vogel<br><b>Sent:</b> Sunday, February 12, 2012 9:20 PM<br><b>To:</b> General pattern discussion<br><b>Subject:</b> Re: [NSRCA-discussion] Arming Switch<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Just relistened to the host's description of what happened (it was his plane) -- I was wrong on one detail, he wasn't straddling the tail when he turned off the RX. It did scare the **** out of him and he counted himself very lucky that no one was hurt. Point being, he relied on electronics which had performed exactly as advertised 100s of times until the one time they didn't. I don't like those odds.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Some would argue my preferred arming switch (The Emcotec safety power switch seen here: <a href="http://www.hkm-models.com/Emcotec%20Switches.html">http://www.hkm-models.com/Emcotec%20Switches.html</a>) does the same thing and I should use a more traditional circuit interrupting jumper ala the options Keith listed and I sent out a similar list a little before that but it would take the simultaneous failure of multiple independent components for that to happen.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Peter+<o:p></o:p></p><div><p class=MsoNormal>On Sun, Feb 12, 2012 at 6:20 PM, Dave Harmon <<a href="mailto:k6xyz@sbcglobal.net">k6xyz@sbcglobal.net</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>Haha….okok…no problem.</span><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'> </span><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Dave Harmon</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>NSRCA 586</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>K6XYZ[at]sbcglobal[dot]net</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.5pt;font-family:"Comic Sans MS";color:#1F497D'>Sperry, Ok.</span></b><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'> </span><o:p></o:p></p></div><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a> [mailto:<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" target="_blank">nsrca-discussion-bounces@lists.nsrca.org</a>] <b>On Behalf Of </b>Peter Vogel<br><b>Sent:</b> Sunday, February 12, 2012 7:35 PM</span><o:p></o:p></p><div><p class=MsoNormal><br><b>To:</b> General pattern discussion<br><b>Cc:</b> General pattern discussion<o:p></o:p></p></div><div><p class=MsoNormal><b>Subject:</b> Re: [NSRCA-discussion] Arming Switch<o:p></o:p></p></div></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The All Things that Fly episode was from a few shows before the show that has 'switches' in the title from late last year. <a href="http://www.allthingsthatfly.com" target="_blank">www.allthingsthatfly.com</a><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Bay RC, photo is on there from several years ago, subject is something like 'they're not always cute + cuddly'. I don't have time to hunt down the link anymore than you do, apparently, but I'm not challenging your credibility. <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Peter+<br><br>Sent from my iPhone4S<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><br>On Feb 12, 2012, at 5:23 PM, "Dave Harmon" <<a href="mailto:k6xyz@sbcglobal.net" target="_blank">k6xyz@sbcglobal.net</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>Subject:</b> Re: [NSRCA-discussion] Arming Switch<o:p></o:p></p></blockquote></div></div></div><p class=MsoNormal><br>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></p></div><p class=MsoNormal><br><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><p class=MsoNormal>Director, Fixed Wing Flight Training<o:p></o:p></p></div><div><p class=MsoNormal>Santa Clara County Model Aircraft Skypark<o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><img border=0 id="_x0000_i1025" src="http://farm8.staticflickr.com/7163/6513778381_5569cc985d_m.jpg"><o:p></o:p></p></div></div></body></html>