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<DIV><FONT face="Times New Roman">Almost all ESC's are designed to kill the
motor on loss of coherant signal. The danger is in if the RX sends out
something that the ESC THINKS is a good signal, but is not what the TX is set
for. (Mis-setting PCM failsafe can give the same result... The
failsafes are only good if you actually pay attention to how you set
them)</FONT></DIV>
<DIV><FONT face="Times New Roman"></FONT> </DIV>
<DIV><FONT face="Times New Roman">If you are paranoid about it... there are
failsafe circuits for sale you can get to put between a PPM RX and the servo or
ESC. </FONT></DIV>
<DIV><FONT face="Times New Roman"></FONT> </DIV>
<DIV><FONT face="Times New Roman">I must be a bit paranoid... I've taken to
putting these things in on my throttle servos for planes with larger than .60
size glow engines. The ones I am using have settable falisafe position
(put the channe to the desired failsafe position and hold a button for about 30
sec.. its set) and they will trigger the failsafe on low RX battery. The
low RX batt function has saved one model on 2 occasions.... found a bad RX batt
and just flew too much the other time. (Too much fun is my enemy... breaks a lot
of planes)</FONT></DIV>
<DIV><FONT face="Times New Roman"></FONT> </DIV>
<DIV><FONT face="Times New Roman">If you are going to require throttle failsafes
for Pattern... you need to require them for all models... glow, gas, electric...
any can have a throttle excursion. (usually caused by bumping the stick or
something.... where a failsafe won't help)</FONT></DIV>
<DIV><FONT face="Times New Roman"></FONT> </DIV>
<DIV><FONT face="Times New Roman">The little voltwatch devices would be the
first thing I would make required... not failsafes. I've seen too many
planes go in from dead RX batteries. A little red LED saying its not safe
to fly works. I put one of these in the club's trainer (and I have them in
most of my planes now) One glance and you KNOW if you have RX power.
They come in 4 cell and 5 cell versions,,, and a version that is switch
selectable for 4 cell or 5 cell.</FONT></DIV>
<DIV><FONT face="Times New Roman"></FONT> </DIV>
<DIV><FONT face="Times New Roman">********* </FONT></DIV>
<DIV><FONT face="Times New Roman"></FONT> </DIV>
<DIV><FONT face="Times New Roman">The way I have my large plane set up... I'm
using 4 mm gold bullet connectors on the LiPos. ("polarized" for prevention
of reverse connections) The + lead bullet is outside the cowl. I can
unplug the batt (or visually check if its plugged) with just a glance.
When I find a fuse holder I like... I'll have the fuse visible (hopefully a red
one that will show up really well against the white cowl) I make sure any
electric model I fly can have the batt disconnected from the ESC without taking
anything apart to get at the connection.</FONT></DIV>
<DIV><FONT face="Times New Roman"></FONT> </DIV>
<DIV><FONT face="Times New Roman">BTW.. when heat-shrink-tube covering a male
bullet.'s solder joint.. let excess hang out over the whole bullet. Don;t
shrink the part that covers the actual plug. You have a shield to prevent
shorting the male connector against anything. :) Sorry... I don't take
decent digital pics of small stuff.... but everyone that has seen my plugs on
this plane thinks its a great idea. costs just an extra 1/2 inch of heat
shrink tube per male bullet. (the part you've probably been triming after heat
shrinking...)</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tkeithb@comcast.net href="mailto:tkeithb@comcast.net">Keith Black</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, August 08, 2006 10:42
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Noxville
Contest??</DIV>
<DIV><BR></DIV>
<DIV>I use an arming pin and always instruct my callers to pull the pin as the
first thing they do when they pick up the plane for me.</DIV>
<DIV> </DIV>
<DIV>Another VERY important item is that it should be required that anyone
flying electric MUST us a PCM RX and failsafe must be set for throttle going
to zero. If a PPM RX is used and the antenna is lowered, or power turned
off before the plane is turned off this could result in a run-away
electric.</DIV>
<DIV> </DIV>
<DIV>Keith Black</DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=johnferrell@earthlink.net
href="mailto:johnferrell@earthlink.net">John Ferrell</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, August 08, 2006 3:42
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Noxville Contest??</DIV>
<DIV><BR></DIV>
<DIV>I personally witnessed an instance of electric starting unexpectedly at
the Nats. Since I was only around Masters & FAI I believe it safe to
dismiss the problem as lack of experience.</DIV>
<DIV> </DIV>
<DIV>I feel it essential to implement some kind of safety device to prevent
this from occurring. I would prefer a mechanical lockout of some sort or at
least an arming plug.</DIV>
<DIV> </DIV>
<DIV>The airplane was being carried back to the pits when the failure
occurred. The handler was on top of the problem but it could have happened
after the plane was parked.</DIV>
<DIV> </DIV>
<DIV>It is a disaster waiting to happen.</DIV>
<DIV> </DIV>
<DIV>John Ferrell W8CCW<BR>"My Competition is not my
enemy"<BR><A href="http://DixieNC.US">http://DixieNC.US</A><BR></DIV>
<BLOCKQUOTE
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=joddino@socal.rr.com
href="mailto:joddino@socal.rr.com">J.Oddino</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, August 08, 2006 12:53
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Noxville Contest??</DIV>
<DIV><BR></DIV>
<DIV>Another reason to go electric.</DIV>
<DIV> </DIV>
<DIV>Jim O</DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=johnferrell@earthlink.net
href="mailto:johnferrell@earthlink.net">John Ferrell</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, August 06, 2006 9:38
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Noxville Contest??</DIV>
<DIV><BR></DIV>
<DIV>I have an $8000 left thumb. They installed a couple of options
while they were rebuilding. It warns of weather changes and also serves
as an alarm clock (sometimes).</DIV>
<DIV> </DIV>
<DIV>I recommended that a student headed for a pro basket ball career
give up RC until the career was behind him.</DIV>
<DIV> </DIV>
<DIV>John Ferrell W8CCW<BR>"My Competition is not my
enemy"<BR><A href="http://DixieNC.US">http://DixieNC.US</A><BR></DIV>
<BLOCKQUOTE
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=BUDDYonRC@aol.com
href="mailto:BUDDYonRC@aol.com">BUDDYonRC@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, August 06, 2006
11:10 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Noxville Contest??</DIV>
<DIV><BR></DIV><FONT id=role_document face=Arial color=#000000 size=2>
<DIV>About two years ago I got my finger in one It cut the right
index finger off at the first joint. Wrapped the finger in a
towel went to the hospital with the severed finger, three
month's and $6000.00 later it was almost as good as new except it
is still numb on the end. APC's show no mercy.</DIV>
<DIV>Buddy </DIV></FONT>
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