<br><font size=2 face="sans-serif">Hey Anthony</font>
<br>
<br><font size=2 face="sans-serif">Never set up that warning function.
Several people have indicated a low battery. Lance thinks fractured crystal...10
years old, stored in my garage at 105F to 25F or so. Every battery failure
I have seen (none were mine) the radio flat out quit. Lance and I are going
back out today, better equipped (long pants-machetes!!!) If I find it I
can re-test the battery..It tested about 150 MAH of its rated capacity,
but I do not have the tester drain the crap out of the volatge.</font>
<br><font size=2 face="sans-serif">Man that plane flew good....9 lbs 15
oz...My skills are so deteriorated.</font>
<br>
<br><font size=2 face="sans-serif"><br>
</font>
<br><font size=2 face="sans-serif"><br>
<br>
<br>
Gray Fowler<br>
Senior Principal Chemical Engineer<br>
Radomes and Specialty Apertures<br>
Technical Staff Composites Engineering<br>
Raytheon</font>
<br>
<br>
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<td width=40%><font size=1 face="sans-serif"><b>Anthony Romano <anthonyr105@hotmail.com></b>
</font>
<br><font size=1 face="sans-serif">Sent by: nsrca-discussion-bounces@lists.nsrca.org</font>
<p><font size=1 face="sans-serif">09/02/2008 09:18 AM</font>
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<div align=center><font size=1 face="sans-serif">Please respond to<br>
General pattern discussion <nsrca-discussion@lists.nsrca.org></font></div></table>
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<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">General pattern discussion <nsrca-discussion@lists.nsrca.org></font>
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<div align=right><font size=1 face="sans-serif">cc</font></div>
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<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [NSRCA-discussion] Ideas on radio
beserkness-cause of crash??</font></table>
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<br><font size=2 face="Tahoma">Hi Gray,<br>
What a huge bummer. Did you have the low rx alarm function turned on?
On the Stylus that is a switchable function that will drop the throttle
to alert you to a low rx voltage. Now I am paranoid and have to go check
mine.<br>
Have heard of similiar "brown out" type of behavior with a Nimh
rx battery failure. Hope you can recover the aircraft. This time of year
the growth in most places can swallow anything.<br>
Many solid flights for almost ten years on my Stylus but it is serviced
every winter.<br>
<br>
Anthony<br>
<br>
<br>
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<hr><font size=2 face="Tahoma"><br>
To: NSRCA-discussion@lists.nsrca.org<br>
From: gfowler@raytheon.com<br>
Date: Tue, 2 Sep 2008 08:30:17 -0500<br>
Subject: [NSRCA-discussion] Ideas on radio beserkness-cause of crash??<br>
<br>
</font><font size=2 face="sans-serif"><br>
Guys</font><font size=2 face="Tahoma"> <br>
</font><font size=2 face="sans-serif"><br>
Yesterday on my 4th flight of the day my PCM Stylus went nuts. PCM program
was set for idle throttle and about 5-6 clicks(trim wise) of up elevator-all
other surfaces neutral, and this was tested as such by turning off the
transmitter. As I passed by center I noticed that I could not gain
altitude and the the throttle started going from idle to high...then ailerons
started oscillating small left-right deflections. I cut the throttle to
the kill position but the engine persisted up-down bursts. I was able to
do a 180 degree turn with aileron coming back to center...never losing
altitude, but unable to change the altitude,elevator seemed unresponsive.
As I passed by center again I was losing more and more control. The plane
flew over the wooded area south of the field at about 200 feet high, I
could not turn and the ailerons rolled the plane upside down and it went
straight down into the trees. This whole episode last about 45 seconds.
Cannot find the plane, and remnants of Gustav are headed my way.</font><font size=2 face="Tahoma">
<br>
<br>
</font><font size=2 face="sans-serif"><br>
Plane was new had about 10 flights on it.</font><font size=2 face="Tahoma">
<br>
</font><font size=2 face="sans-serif"><br>
New battery..NiMH 5 cell pack -no regulator (ran 5 cell packs for years,
no regulator) <br>
Reciever-1999 Stylus PCM-never crashed, wrapped in foam</font><font size=2 face="Tahoma">
</font><font size=2 face="sans-serif"><br>
New switch</font><font size=2 face="Tahoma"> </font><font size=2 face="sans-serif"><br>
Transmitter-1999 Stylus, never been serviced, never had problems</font><font size=2 face="Tahoma">
<br>
</font><font size=2 face="sans-serif"><b><br>
What would cause a PCM receiver to do such a thing?</b> If I had and intermittent
signal, once the receiver did get a signal the only two throttle signals
should have been idle (PCM hold) and off (transmitter). I am going
to send the transmitter in just to get checked.</font><font size=2 face="Tahoma">
<br>
</font><font size=2 face="sans-serif"><br>
Thanks guys....<br>
<br>
<br>
Gray Fowler<br>
Senior Principal Chemical Engineer<br>
Radomes and Specialty Apertures<br>
Technical Staff Composites Engineering<br>
Raytheon</font><font size=2 face="Tahoma"><br>
<br>
</font>
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