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    Keith<br>
    <br>
    Tony advocated doing just that on RCU post #35:<br>
<a class="moz-txt-link-freetext" href="http://www.rcuniverse.com/forum/m_10952866/anchors_10955113/mpage_2/key_/anchor/tm.htm#10955113">http://www.rcuniverse.com/forum/m_10952866/anchors_10955113/mpage_2/key_/anchor/tm.htm#10955113</a><br>
    <br>
    John Gayer<br>
    <br>
    On 2/13/2012 3:45 PM, Keith Hoard wrote:
    <blockquote
      cite="mid:69E811D5-58E3-43D5-8A38-A19F466DE13F@gmail.com"
      type="cite">
      <div>Bob,</div>
      <div><br>
      </div>
      <div>&nbsp; OK, you're right, I thought you were talking about the
        transmitter. &nbsp;I couldn't imagine anyone wanting to turn off the
        receiver signal ON PURPOSE as a means to disarm an ESC. &nbsp;You're
        really relying on that firmware to do the right thing.&nbsp;</div>
      <div>&nbsp; Ya gotta treat these things like a loaded gun. &nbsp;What's the
        best Gun Control Law? &nbsp;Use both hands!!<br>
        <br>
        <div><span class="Apple-style-span"
            style="-webkit-tap-highlight-color: rgba(26, 26, 26,
            0.296875); -webkit-composition-fill-color: rgba(175, 192,
            227, 0.230469); -webkit-composition-frame-color: rgba(77,
            128, 180, 0.230469); ">Keith Hoard</span></div>
        <div>Collierville, TN</div>
      </div>
      <div><br>
        On Feb 13, 2012, at 16:12, Bob Richards &lt;<a
          moz-do-not-send="true" href="mailto:bob@toprudder.com">bob@toprudder.com</a>&gt;
        wrote:<br>
        <br>
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                  <div>Keith,</div>
                  <div>&nbsp;</div>
                  <div>Agree with everything you say, except your #2. I
                    said that turning off the "rx" (receiver) is not
                    completely safe. Perhaps you thought I said
                    "transmitter". Turning off the receiver&nbsp;has nothing
                    to do with failsafe settings as the rx can't output
                    ANYTHING including whatever the "failsafe" setting
                    may be. Some of the so called "arming switches"
                    included on some ESCs do nothing more than turn
                    power off to the rx, or disconnect the signal wire
                    from the rx to the ESC. As someone pointed out, this
                    leaves the ESC open to possible interference after
                    it has been armed.</div>
                  <div>&nbsp;</div>
                  <div>Bob R.<br>
                    <br>
                    --- On <b>Mon, 2/13/12, Keith Hoard <i>&lt;<a
                          moz-do-not-send="true"
                          href="mailto:khoard@gmail.com">khoard@gmail.com</a>&gt;</i></b>
                    wrote:<br>
                  </div>
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                    solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><br>
                    <div id="yiv259333457">Bob,<br>
                      <br>
                      1)&nbsp; So is leaving your canopy off with ESC plug
                      displayed until you are in the ready box.&nbsp; I'd
                      argue that it is more visible AND directly
                      addresses the problem.&nbsp; Arming plugs are small and
                      can only be seen from one side of your airplane. <br>
                      2)&nbsp; That is a failsafe setting issue that an
                      affect your airplane any time the batteries are
                      connected, even during a flight where the
                      disconnect device is useless.&nbsp; I agree with
                      demonstrating proper failsafe setup.<br>
                      3) Very true.<br>
                      <br>
                      &nbsp;&nbsp; What I don't agree with is the NSRCA issuing an
                      "Airworthiness Directive" ("AD" in FAA-speak)
                      requiring me to install equipment to address a <i>potential
                      </i>problem when I can address that problem in
                      other ways.&nbsp; I think the Board would be much
                      better off proposing a rule defining WHAT outcome
                      they are desiring, then allowing the competitor to
                      come up with an effective way to accomplish that
                      objective.&nbsp; I think we'd be better off adopting
                      the FAI rule that mandates when power can be
                      connected to the plane and let the competitor
                      accomplish that objective in any manner they wish,
                      either through good battery management techniques
                      or disconnect devices.<br>
                      <br clear="all">
                      &nbsp;&nbsp;&nbsp; Besides, if you read the NSRCA rule proposal,
                      all it says is that you have to install a
                      disconnect device.&nbsp; It does not mandate when it
                      will be utilized to arm or disarm the plane.&nbsp; So.
                      . . according to the rule, I can install the
                      arming plug and leave it connected at all times,
                      thus not even solving the original "problem".<br>
                      <br>
                      Keith Hoard<br>
                      Collierville, TN<br>
                      <a moz-do-not-send="true"
                        href="http://us.mc1616.mail.yahoo.com/mc/compose?to=khoard@gmail.com"
                        rel="nofollow" target="_blank"
                        ymailto="mailto:khoard@gmail.com">khoard@gmail.com</a><br>
                      <br>
                      <br>
                      <br>
                      <br>
                      <div class="yiv259333457gmail_quote">On Mon, Feb
                        13, 2012 at 2:18 PM, Bob Richards <span
                          dir="ltr">&lt;<a moz-do-not-send="true"
                            href="http://us.mc1616.mail.yahoo.com/mc/compose?to=bob@toprudder.com"
                            rel="nofollow" target="_blank"
                            ymailto="mailto:bob@toprudder.com">bob@toprudder.com</a>&gt;</span>
                        wrote:<br>
                        <blockquote style="BORDER-LEFT: #ccc 1px solid;
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                          class="yiv259333457gmail_quote">
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                                  <div>Keith,</div>
                                  <div>&nbsp;</div>
                                  <div>What you say it true.</div>
                                  <div>&nbsp;</div>
                                  <div>What I have taken from this
                                    discussion:</div>
                                  <div>&nbsp;</div>
                                  <div>1) An arming plug is an
                                    externally visible indicator of
                                    "ready and dangerous".</div>
                                  <div>2) Turning the rx off alone is
                                    not a completely safe condition, and
                                    less so AFTER a flight.</div>
                                  <div>3) No safety measure is 100%
                                    infallible, simply due to human
                                    error.</div>
                                  <div>&nbsp;</div>
                                  <div>Regardless of how you render your
                                    aircraft safe, you still have to
                                    remember to do it!!! People will
                                    forget, and that unfortunately will
                                    happen regardless.</div>
                                  <div>&nbsp;</div>
                                  <div>Bob R.</div>
                                  <div><br>
                                    <br>
                                    --- On <b>Mon, 2/13/12, Keith Hoard
                                      <i>&lt;<a moz-do-not-send="true"
                                          href="http://us.mc1616.mail.yahoo.com/mc/compose?to=khoard@gmail.com"
                                          rel="nofollow" target="_blank"
ymailto="mailto:khoard@gmail.com">khoard@gmail.com</a>&gt;</i></b>
                                    wrote:<br>
                                  </div>
                                  <blockquote style="BORDER-LEFT:
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                                    <div>Just how many airplanes have we
                                      seen fly out of caller's hands at
                                      contests?&nbsp; Is this a widespread
                                      problem, or just isolated to a
                                      couple contests? &nbsp; Why can't the
                                      caller maintain positive control
                                      of the airplane until the owner
                                      gets over to disconnect the
                                      battery?&nbsp; If the caller and/or
                                      pilot are that distracted after a
                                      flight, what is to keep them from
                                      forgetting to removing the arming
                                      plug?&nbsp; <br>
                                      <br>
                                      I think this is a solution
                                      wandering around looking for a
                                      problem.&nbsp; If you can't remember to
                                      disconnect your battery as soon as
                                      possible after a flight and to
                                      only connect it just prior to
                                      flight then you won't remember to
                                      use your arming plug to perform
                                      the same functions.<br clear="all">
                                      <br>
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