<html><head></head><body bgcolor="#FFFFFF"><div> I guess I'd have to defer to the ESC manufacturer on that one. Does anyone know Castle's official position about killing the receiver signal to disarm the ESC? Apparently Tony has done it enough that he's confident with that method. <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 17:17, John Gayer <<a href="mailto:jgghome@comcast.net">jgghome@comcast.net</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
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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> OK, you're right, I thought you were talking about the
transmitter. I couldn't imagine anyone wanting to turn off the
receiver signal ON PURPOSE as a means to disarm an ESC. You're
really relying on that firmware to do the right thing. </div>
<div> Ya gotta treat these things like a loaded gun. What's the
best Gun Control Law? 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 <<a moz-do-not-send="true" href="mailto:bob@toprudder.com">bob@toprudder.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
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<div>Keith,</div>
<div> </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 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> </div>
<div>Bob R.<br>
<br>
--- On <b>Mon, 2/13/12, Keith Hoard <i><<a moz-do-not-send="true" href="mailto:khoard@gmail.com">khoard@gmail.com</a>></i></b>
wrote:<br>
</div>
<blockquote style="BORDER-LEFT: rgb(16,16,255) 2px
solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><br>
<div id="yiv259333457">Bob,<br>
<br>
1) So is leaving your canopy off with ESC plug
displayed until you are in the ready box. I'd
argue that it is more visible AND directly
addresses the problem. Arming plugs are small and
can only be seen from one side of your airplane. <br>
2) 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. I agree with
demonstrating proper failsafe setup.<br>
3) Very true.<br>
<br>
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. 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. 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">
Besides, if you read the NSRCA rule proposal,
all it says is that you have to install a
disconnect device. It does not mandate when it
will be utilized to arm or disarm the plane. 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"><<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>></span>
wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid;
MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="yiv259333457gmail_quote">
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<div>Keith,</div>
<div> </div>
<div>What you say it true.</div>
<div> </div>
<div>What I have taken from this
discussion:</div>
<div> </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> </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> </div>
<div>Bob R.</div>
<div><br>
<br>
--- On <b>Mon, 2/13/12, Keith Hoard
<i><<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>></i></b>
wrote:<br>
</div>
<blockquote style="BORDER-LEFT:
rgb(16,16,255) 2px solid;
PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><br>
<div>Just how many airplanes have we
seen fly out of caller's hands at
contests? Is this a widespread
problem, or just isolated to a
couple contests? Why can't the
caller maintain positive control
of the airplane until the owner
gets over to disconnect the
battery? If the caller and/or
pilot are that distracted after a
flight, what is to keep them from
forgetting to removing the arming
plug? <br>
<br>
I think this is a solution
wandering around looking for a
problem. 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>
</div>
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