<html>
  <head>
    <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#3333FF">
    So...since no safety rule can totally prevent accidents, we should
    have none?<br>
    I suppose you are against seatbelts, airbags and helmets because
    they don't prevent all vehicle deaths?<br>
    <br>
    I don't see the point in conjuring up ridiculous rule possibilities
    to put down reasonable safety rules.<br>
    Failsafe checks are intended to be educational rather than punitive
    so where's the harm?<br>
    Also, there is no rule being proposed that mandates any arming
    system at all but you must demonstrate a physical disconnect of the
    motor battery. I consider an arming plug/connection  to be by far
    the easiest and safest way to satisfy the proposed rule.<br>
    <br>
    John<br>
    <br>
    <div class="moz-cite-prefix">On 5/17/2015 11:47 AM, Dave Lockhart
      via NSRCA-discussion wrote:<br>
    </div>
    <blockquote cite="mid:046001d090c9$82aff420$880fdc60$@comcast.net"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <meta name="Generator" content="Microsoft Word 14 (filtered
        medium)">
      <!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]-->
      <style><!--
/* Font Definitions */
@font-face
        {font-family:Calibri;
        panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
        {font-family:Tahoma;
        panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
        {font-family:ArialMS;
        panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0in;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
        {mso-style-priority:99;
        color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {mso-style-priority:99;
        color:purple;
        text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
        {mso-style-priority:99;
        mso-style-link:"Balloon Text Char";
        margin:0in;
        margin-bottom:.0001pt;
        font-size:8.0pt;
        font-family:"Tahoma","sans-serif";}
span.apple-converted-space
        {mso-style-name:apple-converted-space;}
span.BalloonTextChar
        {mso-style-name:"Balloon Text Char";
        mso-style-priority:99;
        mso-style-link:"Balloon Text";
        font-family:"Tahoma","sans-serif";}
span.EmailStyle20
        {mso-style-type:personal-reply;
        font-family:"Calibri","sans-serif";
        color:#1F497D;}
.MsoChpDefault
        {mso-style-type:export-only;
        font-size:10.0pt;}
@page WordSection1
        {size:8.5in 11.0in;
        margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
        {page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
      <div class="WordSection1">
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">So…..if
            we mandate arming systems….our airplanes will no longer be
            capable of causing carnage?<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Maybe
            we should require all planes have an impact absorbing foam
            spinner and a shroud around the prop to make sure the
            spinning thing on front can’t cut anyone?  Of course the
            kinetic energy of the moving plane will still be substantial
            enough to cause carnage….so maybe a combination of speed and
            weight limit to restrict the kinetic energy level to a point
            that it is deemed “safe”?<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Accidents
            are accidents….and more likely to happen when safe
            procedures are not followed.  Our airplanes will always be
            dangerous and capable of causing carnage….just like the cars
            we drive to the field in.<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Requiring
            the fail safe be demonstrated is a far better idea….but it
            still won’t protect against someone bumping the throttle
            stick of an airplane that passes a fail safe check and has
            an arming system in it.  To my recollection, I’d say about
            20% of the fail safe checks at the 2011 WC were not
            successful on the first attempt….and a surprising number of
            the pilots needed assistance programming there radio to make
            the failsafe work.<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards,<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dave<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
        <div>
          <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
                [<a class="moz-txt-link-freetext" href="mailto:nsrca-discussion-bounces@lists.nsrca.org">mailto:nsrca-discussion-bounces@lists.nsrca.org</a>] <b>On
                  Behalf Of </b>Ronald Van Putte via NSRCA-discussion<br>
                <b>Sent:</b> Sunday, May 17, 2015 1:09 PM<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>
        <p class="MsoNormal">Yeah!  Even if we are capable of causing
          carnage with our unsafe airplane, it’s nobody else’s business.
           Don’t mess with my airplane!  <o:p></o:p></p>
        <div>
          <p class="MsoNormal"><o:p> </o:p></p>
        </div>
        <div>
          <p class="MsoNormal">Ron (with tongue in cheek)<o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"><o:p> </o:p></p>
          <div>
            <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
              <div>
                <p class="MsoNormal">On May 17, 2015, at 11:30 AM, Keith
                  Hoard via NSRCA-discussion <<a
                    moz-do-not-send="true"
                    href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                  wrote:<o:p></o:p></p>
              </div>
              <p class="MsoNormal"><o:p> </o:p></p>
              <div>
                <div>
                  <div>
                    <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Pattern
                        is turning into a box checking, over-regulated
                        government operation.<br>
                        <br>
                        -Keith Hoard<br>
                        -Sent from my Windows Phone<o:p></o:p></span></p>
                  </div>
                </div>
                <div>
                  <div class="MsoNormal" style="text-align:center"
                    align="center"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">
                      <hr align="center" size="3" width="100%"></span></div>
                  <p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:<span
                          class="apple-converted-space"> </span></span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><a
                        moz-do-not-send="true"
                        href="mailto:nsrca-discussion@lists.nsrca.org">Vicente
                        Bortone via NSRCA-discussion</a></span><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><br>
                    </span><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Sent:<span
                          class="apple-converted-space"> </span></span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">‎5/‎17/‎2015
                      9:04</span><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><br>
                    </span><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">To:<span
                          class="apple-converted-space"> </span></span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><a
                        moz-do-not-send="true"
                        href="mailto:k6xyz@sbcglobal.net">David Harmon</a>;<span
                        class="apple-converted-space"> </span><a
                        moz-do-not-send="true"
                        href="mailto:nsrca-discussion@lists.nsrca.org">General
                        pattern discussion</a></span><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><br>
                    </span><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Subject:<span
                          class="apple-converted-space"> </span></span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">[NSRCA-discussion] 
                      Arming device</span><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><o:p></o:p></span></p>
                </div>
                <div>
                  <p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">TAG
                      IN.....<br>
                      <br>
                      Hi Dave,<br>
                      <br>
                      I started to do that in my contest in Kansas City
                      last year.  This year in pilot meeting I said. "
                      If you don't do it the first round will be
                      zeroed.  Well I think worked well"<br>
                      <br>
                      John F.<br>
                      <br>
                      You just made my day. I do more or less the same
                      you do. I review a lot of projects. Clearly will
                      all here analyzed the system and we know the steps
                      could be used to mitigate a possible situation.
                      That is the end of discussion in cases like this.
                      Just give me a real possibility of tag in and tag
                      out.<br>
                      <br>
                      Jon,<br>
                      <br>
                      Good research. Now you have to find what is the
                      code that applies to model airplanes. I knew that
                      there is no one specific code. However existing
                      codes applies for similar systems. If all if them
                      arrives to the same conclusion we will be in
                      better shape if we just follow the intent of all
                      codes you can find. Now try to find the specifics
                      for a system similar to the one we have. I already
                      know the answer so I don't need to ask our friend
                      Google.<br>
                      <br>
                      TAG OUT<span class="apple-converted-space"> </span><o:p></o:p></span></p>
                  <div>
                    <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><br>
                        <br>
                        On Saturday, May 16, 2015, David Harmon via
                        NSRCA-discussion <<a moz-do-not-send="true"
                          href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                        wrote:<o:p></o:p></span></p>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">With
                          as much talk that has gone on and on
                          andonandonandonandon about this<br>
                          arming device......puff..puff....not much
                          percentage.<br>
                          Especially when it is so easy to check.....<br>
                          Before the first takeoff of each pilot on the
                          first round....the helper<br>
                          holds the plane off the ground and the pilot
                          turns off the transmitter.<br>
                          The judges can verify that the motor does not
                          start.<br>
                          Easy....no drama.<br>
                          <br>
                          Oh wait....this was never done with
                          glow....but I HAVE seen several guys<br>
                          chawed up by a howling YS.<br>
                          One time a guys airplane chased him in a
                          circle as he was trying to catch<br>
                          it...he had one leg in front of one wing and
                          for an old guy he moved  pretty<br>
                          quick.<br>
                          I can't describe how long I laughed about that
                          incident.<br>
                          <br>
                          In the end....my opinion is checking the
                          fail-safe function should be a must<br>
                          at each contest.<br>
                          <br>
                          David Harmon<br>
                          Sperry, OK<br>
                          <br>
                          -----Original Message-----<o:p></o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">From:
                          NSRCA-discussion [<a moz-do-not-send="true"
                            href="mailto:nsrca-discussion-bounces@lists.nsrca.org">mailto:</a><a
                            moz-do-not-send="true"
                            href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>]
                          On<o:p></o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">Behalf
                          Of Ron Van Putte via NSRCA-discussion<br>
                          Sent: Saturday, May 16, 2015 4:58 PM<o:p></o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><br>
                          To: General pattern discussion<br>
                          Subject: Re: [NSRCA-discussion] Arming device<o:p></o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">I
                          have seen too many situations where an ID10T
                          error caused serious damage<br>
                          that would have been precluded by the use of a
                          shorting plug.<br>
                          <br>
                          What percentage of pilots’ transmitters would
                          fail the fail safe test?<br>
                          Anybody?<br>
                          <br>
                          Ron Van Putte<br>
                          <br>
                          On May 16, 2015, at 4:08 PM, Whodaddy Whodaddy
                          via NSRCA-discussion<br>
                          <<a moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                          wrote:<br>
                          <br>
                          > Seems like we have to many people with to
                          much time on their hands sitting<br>
                          around fantasizing about what might happen if
                          .... Really.... if u cant<br>
                          control the aircraft in all aspects then u
                          prolly shouldn't have one... Let<br>
                          alone legislate what i need to be doing with
                          mine...<br>
                          ><br>
                          ><br>
                          > Gary<br>
                          ><o:p></o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">>
                          Sent from my iPhone<br>
                          ><o:p></o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><o:p> </o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">>>
                          On May 16, 2015, at 3:58 PM, Jon Lowe via
                          NSRCA-discussion<o:p></o:p></span></p>
                    </blockquote>
                  </div>
                  <div>
                    <blockquote style="border:none;border-left:solid
                      #CCCCCC 1.0pt;padding:0in 0in 0in
                      6.0pt;margin-left:4.8pt;margin-right:0in">
                      <p class="MsoNormal"><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><<a
                            moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                          wrote:<br>
                          >><br>
                          >> Code doesn't apply to model
                          airplanes.  Cars do not disconnect the<br>
                          battery, except on race cars with a disconnect
                          switch in case of a wreck.<br>
                          Normal road cars do not, and modern cars leave
                          a lot of things connected<br>
                          when the ignition is off.  A lot of cars have
                          underhood fans that run for<br>
                          awhile after the car is shut off.<br>
                          >><br>
                          >> If this was a big issue, AMA would
                          address it with all model aircraft,<br>
                          not just pattern. Electric is common in helis,
                          controline, etc. We are over<br>
                          killing this something awful.<br>
                          >><br>
                          >> Jon<br>
                          >><br>
                          >>> On May 16, 2015 2:11 PM, Vicente
                          Bortone via NSRCA-discussion<br>
                          <<a moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                          wrote:<br>
                          >>><br>
                          >>> the ignition switch.<br>
                          >>><br>
                          >>>> On Saturday, May 16, 2015,
                          Vicente Bortone <<a moz-do-not-send="true"
                            href="mailto:vincebrc@gmail.com">vincebrc@gmail.com</a>>
                          wrote:<br>
                          >>>><br>
                          >>>><br>
                          >>>><br>
                          >>>>> On Saturday, May 16,
                          2015, Del R via NSRCA-discussion<br>
                          <<a moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                          wrote:<br>
                          >>>>><br>
                          >>>>> The nice thing about
                          being brought up around GUNS.. It teaches<br>
                          >>>>> people to respect it
                          always as though it is loaded and cocked<br>
                          >>>>> ready to deliver its
                          physical life altering energy!!!.. < tic
                          ><br>
                          >>>>><br>
                          >>>>><br>
                          >>>>>><br>
                          >>>>>> ----- Original
                          Message -----<br>
                          >>>>>> From: David Cook via
                          NSRCA-discussion<br>
                          >>>>>> To: Jim Woodward ;
                          General pattern discussion<br>
                          >>>>>> Sent: Saturday, May
                          16, 2015 10:48 AM<br>
                          >>>>>> Subject: Re:
                          [NSRCA-discussion] Arming device<br>
                          >>>>>><br>
                          >>>>>> Just to open the can
                          of worms from the other end.<br>
                          >>>>>> Now that I have seen
                          the damage a runaway can do to a pool table
                          even<br>
                          with an external arming device, I have begun
                          to make it a common practice to<br>
                          remove the prop from the electric planes any
                          time I am not at the field<br>
                          flying. Store the ammunition and the pin under
                          two different locks. How easy<br>
                          is it to be careless in the shop or
                          transporting a plane. This thread could<br>
                          just explode with stories of mishaps we have
                          made or come way too close to.<br>
                          >>>>>> You just can't be too
                          carful with these things!!!<br>
                          >>>>>> DC<br>
                          >>>>>><br>
                          >>>>>>> On Sat, May 16,
                          2015 at 10:21 AM, Jim Woodward via
                          NSRCA-discussion<br>
                          <<a moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                          wrote:<br>
                          >>>>>>><br>
                          >>>>>>> ... Going
                          electric induces a mental physchosis that
                          requires<br>
                          >>>>>>> everyone else to
                          switch, then go and change the rules for glow<br>
                          >>>>>>> :)<br>
                          >>>>>>><br>
                          >>>>>>> Sent from my
                          iPhone<br>
                          >>>>>>><br>
                          >>>>>>>> On May 16,
                          2015, at 9:38 AM, Keith Hoard via
                          NSRCA-discussion<br>
                          <<a moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                          wrote:<br>
                          >>>>>>>><br>
                          >>>>>>>> I think the
                          YS guys should have their caller remove the
                          fuel tank<br>
                          and glow plug before picking up the plane and
                          exiting the runway  . . .<br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>> From:
                          NSRCA-discussion<br>
                          >>>>>>>> [<a
                            moz-do-not-send="true"
                            href="mailto:nsrca-discussion-bounces@lists.nsrca.org">mailto:</a><a
                            moz-do-not-send="true"
                            href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>]
                          On Behalf Of<br>
                          >>>>>>>> precisionaero
                          via NSRCA-discussion<br>
                          >>>>>>>> Sent:
                          Saturday, May 16, 2015 8:38 AM<br>
                          >>>>>>>> To: General
                          pattern discussion<br>
                          >>>>>>>> Subject: Re:
                          [NSRCA-discussion] Arming device<br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>> I think we
                          should reconfigure a YS engine to drive a
                          generator to<br>
                          supply electricity to the electric motor.<br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>> Sent via the
                          Samsung Galaxy S™ III, an AT&T 4G LTE
                          smartphone<br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>> --------
                          Original message --------<br>
                          >>>>>>>><br>
                          >>>>>>>> From: Peter
                          Vogel via NSRCA-discussion<br>
                          >>>>>>>><br>
                          >>>>>>>>
                          Date:05/16/2015 09:31 (GMT-05:00)<br>
                          >>>>>>>><br>
                          >>>>>>>> To: General
                          pattern discussion ,<span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:ronlock@comcast.net">ronlock@comcast.net</a>,
                          David<br>
                          >>>>>>>><br>
                          >>>>>>>> Subject: Re:
                          [NSRCA-discussion] Arming device<br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>> I think we're
                          all in agreement, which is why the rules
                          proposal we<br>
                          put forth requires a *physical* break in the
                          circuit!<br>
                          >>>>>>>><br>
                          >>>>>>>> Sent from
                          Outlook<br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>><br>
                          >>>>>>>>> On Sat,
                          May 16, 2015 at 6:16 AM -0700, "ronlock--- via<br>
                          NSRCA-discussion" <<a
                            moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
                          wrote:<br>
                          >>>>>>>>><br>
                          >>>>>>>>> I'm in
                          agreement.<br>
                          >>>>>>>>><br>
                          >>>>>>>>> Ron
                          Lockhart<br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>>
                          ________________________________<br>
                          >>>>>>>>><br>
                          >>>>>>>>> From:
                          "David via NSRCA-discussion"<br>
                          >>>>>>>>> <<a
                            moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br>
                          >>>>>>>>> To:<span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a><br>
                          >>>>>>>>> Sent:
                          Saturday, May 16, 2015 1:14:21 AM<br>
                          >>>>>>>>> Subject:
                          [NSRCA-discussion] Arming device<br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>> I'm not
                          trying to bring up a sore subject but this has
                          been<br>
                          bugging me since it was up a while back. I am
                          the senior electronics<br>
                          technician in the plasma physics department at
                          the University of Wisconsin.<br>
                          About a third of what I do is make interlock
                          circuits for the Madison<br>
                          Symmetric Torus. I know that the best way of
                          keeping things safe is to<br>
                          remove the potential energy from a circuit to
                          keep bad things from<br>
                          happening. The problem with depending on a
                          circuit such as the emcotec type<br>
                          of disconnect or to just relying solely on the
                          radio and ESC to keep things<br>
                          safe is failure modes. You can plan for all
                          different failure types but to<br>
                          make it a circuit that isn't a lead brick
                          being added to the plane there are<br>
                          compromises that have to be made. This leads
                          to designing systems that may<br>
                          deal with only the most common types of
                          failures. For example most common<br>
                          diodes and tantalum capacitors usually fail in
                          a shorted mode, but not<br>
                          always. Many carbon resistors will decrease in
                          résistance just prior to<br>
                          opening up. You get the idea, there are just
                          so many possibilities and<br>
                          combinations that in my opinion the only real
                          way to safe a power system is<br>
                          to disconnect the energy source. Ok, now I
                          feel better that I said<br>
                          something.<br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>> David<br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>><br>
                          >>>>>>>>>
                          _______________________________________________<br>
                          >>>>>>>>>
                          NSRCA-discussion mailing list<br>
                          >>>>>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          >>>>>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
                          >>>>>>>><br>
                          >>>>>>>>
                          _______________________________________________<br>
                          >>>>>>>>
                          NSRCA-discussion mailing list<br>
                          >>>>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          >>>>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
                          >>>>>>><br>
                          >>>>>>><br>
                          >>>>>>>
                          _______________________________________________<br>
                          >>>>>>> NSRCA-discussion
                          mailing list<br>
                          >>>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          >>>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
                          >>>>>><br>
                          >>>>>><br>
                          >>>>>>
                          ________________________________<br>
                          >>>>>><br>
                          >>>>>>
                          _______________________________________________<br>
                          >>>>>> NSRCA-discussion
                          mailing list<br>
                          >>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          >>>>>><span
                            class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
                          >>>><br>
                          >>>><br>
                          >>>><br>
                          >>>> --<br>
                          >>>> Vicente "Vince" Bortone<br>
                          >>><br>
                          >>><br>
                          >>><br>
                          >>> --<br>
                          >>> Vicente "Vince" Bortone<br>
                          >>
                          _______________________________________________<br>
                          >> NSRCA-discussion mailing list<br>
                          >><span class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          >><span class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
                          >
                          _______________________________________________<br>
                          > NSRCA-discussion mailing list<br>
                          ><span class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          ><span class="apple-converted-space"> </span><a
                            moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
                          <br>
_______________________________________________<br>
                          NSRCA-discussion mailing list<br>
                          <a moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          <a moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br>
                          <br>
_______________________________________________<br>
                          NSRCA-discussion mailing list<br>
                          <a moz-do-not-send="true"
                            href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br>
                          <a moz-do-not-send="true"
                            href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
                            target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></span></p>
                    </blockquote>
                  </div>
                </div>
                <p class="MsoNormal"><Mail Attachment.txt><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">_______________________________________________<br>
                    NSRCA-discussion mailing list<br>
                  </span><a moz-do-not-send="true"
                    href="mailto:NSRCA-discussion@lists.nsrca.org"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">NSRCA-discussion@lists.nsrca.org</span></a><span
style="font-size:10.5pt;font-family:"ArialMS","serif""><br>
                  </span><a moz-do-not-send="true"
                    href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"><span
style="font-size:10.5pt;font-family:"ArialMS","serif"">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</span></a><o:p></o:p></p>
              </div>
            </blockquote>
          </div>
          <p class="MsoNormal"><o:p> </o:p></p>
        </div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
NSRCA-discussion mailing list
<a class="moz-txt-link-abbreviated" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a>
<a class="moz-txt-link-freetext" href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></pre>
    </blockquote>
    <br>
  </body>
</html>