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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:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>I think the YS guys should have their caller remove the fuel tank and glow plug before picking up the plane and exiting the runway . . .<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> NSRCA-discussion [mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>precisionaero via NSRCA-discussion<br><b>Sent:</b> Saturday, May 16, 2015 8:38 AM<br><b>To:</b> General pattern discussion<br><b>Subject:</b> Re: [NSRCA-discussion] Arming device<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>I think we should reconfigure a YS engine to drive a generator to supply electricity to the electric motor.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal><span style='font-size:7.0pt;color:#575757'>Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>-------- Original message --------<o:p></o:p></p></div><div><p class=MsoNormal>From: Peter Vogel via NSRCA-discussion <o:p></o:p></p></div><div><p class=MsoNormal>Date:05/16/2015 09:31 (GMT-05:00) <o:p></o:p></p></div><div><p class=MsoNormal>To: General pattern discussion , <a href="mailto:ronlock@comcast.net">ronlock@comcast.net</a>, David <o:p></o:p></p></div><div><p class=MsoNormal>Subject: Re: [NSRCA-discussion] Arming device <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'>I think we're all in agreement, which is why the rules proposal we put forth requires a *physical* break in the circuit!<o:p></o:p></p><div><p class=MsoNormal>Sent from <a href="http://taps.io/outlookmobile">Outlook</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><br><br><o:p></o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'>On Sat, May 16, 2015 at 6:16 AM -0700, "ronlock--- via NSRCA-discussion" <<a href="mailto:nsrca-discussion@lists.nsrca.org" target="_blank">nsrca-discussion@lists.nsrca.org</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif;color:black'>I'm in agreement.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif;color:black'>Ron Lockhart<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div><div class=MsoNormal align=center style='text-align:center'><span style='font-family:"Arial",sans-serif;color:black'><hr size=2 width="100%" align=center id="x_zwchr"></span></div><div><p class=MsoNormal><b><span style='font-family:"Helvetica",sans-serif;color:black'>From: </span></b><span style='font-family:"Helvetica",sans-serif;color:black'>"David via NSRCA-discussion" <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br><b>To: </b><a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a><br><b>Sent: </b>Saturday, May 16, 2015 1:14:21 AM<br><b>Subject: </b>[NSRCA-discussion] Arming device<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-family:"Helvetica",sans-serif;color:black'>I'm not trying to bring up a sore subject but this has been bugging me since it was up a while back. I am the senior electronics technician in the plasma physics department at the University of Wisconsin. About a third of what I do is make interlock circuits for the Madison Symmetric Torus. I know that the best way of keeping things safe is to remove the potential energy from a circuit to keep bad things from happening. The problem with depending on a circuit such as the emcotec type of disconnect or to just relying solely on the radio and ESC to keep things safe is failure modes. You can plan for all different failure types but to make it a circuit that isn't a lead brick being added to the plane there are compromises that have to be made. This leads to designing systems that may deal with only the most common types of failures. For example most common diodes and tantalum capacitors usually fail in a shorted mode, but not always. Many carbon resistors will decrease in résistance just prior to opening up. You get the idea, there are just so many possibilities and combinations that in my opinion the only real way to safe a power system is to disconnect the energy source. Ok, now I feel better that I said something. <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-family:"Helvetica",sans-serif;color:black'>David<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-family:"Helvetica",sans-serif;color:black'><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">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div></div></div></blockquote></div></div></div></body></html>