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<DIV><FONT face=Arial color=#0000ff size=2>Gray `~ would try posting your query
here .. </FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2> </FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><A
href="mailto:AirtronicsUsersGroup@yahoogr">AirtronicsUsersGroup@yahoogr</A>...<BR>E-mail
Address(es):<BR> <A
href="mailto:AirtronicsUsersGroup@yahoogroups.com">AirtronicsUsersGroup@yahoogroups.com</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2>Del</FONT></DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 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=gfowler@raytheon.com href="mailto:gfowler@raytheon.com">Gray E
Fowler</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> Tuesday, September 02, 2008 9:30
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Ideas on
radio beserkness-cause of crash??</DIV>
<DIV><BR></DIV><BR><FONT face=sans-serif size=2>Guys</FONT> <BR><BR><FONT
face=sans-serif size=2>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>
<BR><BR><BR><FONT face=sans-serif size=2>Plane was new had about 10 flights on
it.</FONT> <BR><BR><FONT face=sans-serif size=2>New battery..NiMH 5 cell pack
-no regulator (ran 5 cell packs for years, no regulator) </FONT><BR><FONT
face=sans-serif size=2>Reciever-1999 Stylus PCM-never crashed, wrapped in
foam</FONT> <BR><FONT face=sans-serif size=2>New switch</FONT> <BR><FONT
face=sans-serif size=2>Transmitter-1999 Stylus, never been serviced, never had
problems</FONT> <BR><BR><FONT face=sans-serif size=2><B>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> <BR><BR><FONT face=sans-serif size=2>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>
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<P></P><BR>No virus found in this incoming message.<BR>Checked by AVG -
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