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<DIV><SPAN class=570130205-13022008><FONT face=Arial color=#0000ff>I had this
glitch at the Nats in my Tx and thought I was flying to far out as I only
noticed on occasion in my rollers. I sent it in and was told that there was an
early run of 14's that seem to see this issue once in a while. Send it in and
they will change it out. </FONT></SPAN></DIV>
<DIV> </DIV>
<P><FONT
size=2>Regards,<BR>Jason<BR>www.jasonshulman.com<BR>www.shulmanaviation.com<BR>www.composite-arf.com</FONT>
</P>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of </B>James
Oddino<BR><B>Sent:</B> Tuesday, February 12, 2008 11:56 PM<BR><B>To:</B>
adriancwong@earthlink.net; NSRCA Mailing List<BR><B>Subject:</B> Re:
[NSRCA-discussion] Futaba 14MZ glitch<BR><BR></FONT></DIV>Hi Adrian,
<DIV><BR class=webkit-block-placeholder></DIV>
<DIV>That doesn't sound good for a system that young. My 9ZAP finally
was getting old but I had it for over 15 years. </DIV>
<DIV>The sticks still use pots like we've used forever. I believe the
confusion started when Futaba started calling them encoders. A friend of
mine had his replaced and what they took out looked like ordinary pots.
I don't know if he had experienced any twitches but I'll ask him.</DIV>
<DIV>I can't think of any reason the 14MZ should be more susceptible but I
believe it does use different pots than other Futaba transmitters. I'm
sure the service folks will replace them but it would be nice to know if they
are replacing with the same old stuff or have a better replacement.</DIV>
<DIV><BR class=webkit-block-placeholder></DIV>
<DIV>Jim</DIV>
<DIV><BR class=webkit-block-placeholder></DIV>
<DIV><BR>
<DIV>
<DIV>On Feb 12, 2008, at 6:28 PM, <A
href="mailto:adriancwong@earthlink.net">adriancwong@earthlink.net</A>
wrote:</DIV><BR class=Apple-interchange-newline>
<BLOCKQUOTE type="cite"><SPAN class=Apple-style-span
style="WORD-SPACING: 0px; FONT: 18px Helvetica; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate; orphans: 2; widows: 2; webkit-border-horizontal-spacing: 0px; webkit-border-vertical-spacing: 0px; webkit-text-decorations-in-effect: none; webkit-text-size-adjust: auto; webkit-text-stroke-width: 0">
<DIV id=compText
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Geneva, Arial, Helvetica, sans-serif; BACKGROUND-COLOR: rgb(255,255,255)">To
all,<BR><BR>Two of my friends from Hong Kong informed me that their 14MZ has
developed what the the Futaba Japan called a "Stick Volume" problem.
You can be flying along without giving any input to any of the control, but
suddenly, there can be a twitch on any of the moving surfaces, as if you
give the stick a quick jerking movement. One of my friend had it to the
rudder, and the other on the aileron. They sent it back to Futaba Japan and
got it fixed, explanation from Futaba was a wear and tear problem on the
stick control.<BR><BR>I've been using my 14MZ for over a year now, and I had
the same thing happen to my aileron started about a month ago. At first, I
thought it was an old ail servo, I changed both of them and flew it for
another 20 flights without any issues. Then, I switched to another plane
with brand new aileron servos a few days ago, and the same issue resurfaced,
and the occurance gets more and more frequnt.<SPAN
class=Apple-converted-space> </SPAN><BR><BR>This morning, I was
practicing the P-09 sequence with my friend Don Atwood. As I was pulling the
plane into the stall turn, it started to twitch on the up line. I then
pulled the plane into the next maneuver - top hat with 4 of 8 - it twitched
again on the down line. It never went into a complete lock-out, but just a
quick twitch on the ail.<SPAN
class=Apple-converted-space> </SPAN><BR><BR>After I landed, I was able
to duplicate the same movement on the aileron. I moved the stick back and
forth a few times, as soon as I let go of the stick, within a split second,
both aileron will twitch a few times and then stopped.<SPAN
class=Apple-converted-space> </SPAN><BR><BR>As far as I know, the 14MZ
Tx does not have atick pots any more, it has some kind of an encoder,
similar to a - fly by wire - system on the modern jet liners? The encoder is
suppose to detect the amount of input onto the stick and feed the signal to
the servos?<BR><BR>Here are my questions:-<BR><BR>Am I correct on the
encoding system?<SPAN class=Apple-converted-space> </SPAN><BR><BR>Does
anyone on the list experienced the same issue?<SPAN
class=Apple-converted-space> </SPAN><BR><BR>Does this only occur to the
14MZ, or, other models with the similar encoding system. Particularly
with the 2048 resolution?<BR><BR>When I send it to Great Planes for service,
will they be able to identify the problem easily with an electronic
scope?<BR><BR>Thanks in advance to
all.<BR><BR>Adrian<BR>_______________________________________________<BR>NSRCA-discussion
mailing list<BR><A
href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</A><BR><A
href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A></DIV></SPAN></BLOCKQUOTE></DIV><BR></DIV></BLOCKQUOTE></BODY></HTML>