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<DIV><FONT face=Arial size=2>Paul,</FONT></DIV>
<DIV><FONT face=Arial size=2>
What is the mechanical advantage ratio like between the servo arm and the
aileron horn? A long aileron-servo arm and a short aileron horn can make
for some bad resolution under load. Many servos do not deliver if loaded
incorrectly. Also what is the voltage of your battery under a 500 mA
load?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Eric.</FONT></DIV>
<DIV><FONT face=Arial size=2> </FONT></DIV>
<BLOCKQUOTE dir=ltr
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=jivey61@bellsouth.net
href="mailto:jivey61@bellsouth.net">jivey61@bellsouth.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, December 05, 2005 12:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Excess Aileron sensitivity
around neutral</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Paul</FONT></DIV>
<DIV><FONT face=Arial size=2> I think you have too much throw on the
ailerons.You should look for maximum of 12-15 degrees up and 12-15
degrees down as measured with a gage of some sort. Seal aileron
gap,also.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Jim Ivey</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=paul.horan@sbcglobal.net
href="mailto:paul.horan@sbcglobal.net">paul</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, December 05, 2005 11:10
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Excess Aileron sensitivity
around neutral</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2> Oops, when I said the
ailerons were OK at full throttle I meant to describe that the aileron
authority was not excessive, not that the excessive sensitivity is speed or
throttle related - it is not. Sorry I was not more
specific.</FONT></DIV>
<DIV><FONT face=Arial size=2> Some more
details:</FONT></DIV>
<DIV><FONT face=Arial size=2>* Servos are two digital 9252s, should be
plenty of torque and have excellent resolution around neutral - no pot
problems.</FONT></DIV>
<DIV><FONT face=Arial size=2>* Linkage is carbon fiber rod and no
slop.</FONT></DIV>
<DIV><FONT face=Arial size=2>* Expo is - 45% to reduce the twich.
ATV is 100 % high rate 90% low 75% (normally high would be 100% but is
dialed down while working this problem).</FONT></DIV>
<DIV><FONT face=Arial size=2>* Airframe - no loose covering, clevis pin is
over hinge line at neutral, servo arm and control horn are 90 degrees at
neutral (control geometry). CG is rearward but not tail heavy - pitch
is not twichy. </FONT></DIV>
<DIV><FONT face=Arial size=2>* have not measured wing and
stab incidence angles.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>*** one thing that Del mentioned - Aileron
trailing edge (and wing) taper to a very sharp radius ~ 3/32 to 1/8
inch.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2>Paul</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=paul.horan@sbcglobal.net
href="mailto:paul.horan@sbcglobal.net">paul</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, December 04, 2005 5:26
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Excess Aileron sensitivity
around neutral</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2> I have a Meridian with a
frustrating characteristic, the ailerons are excessively sensitive around
neutral.</FONT></DIV>
<DIV><FONT face=Arial size=2>I'm the second owner of this plane but the
first owner said he had the same problem. Aileron authority at full
throttle is not excessive - in fact it slightly on the mild
side. </FONT></DIV>
<DIV><FONT face=Arial size=2>Any ideas ?</FONT></DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2>Paul</FONT></DIV>
<DIV><FONT face=Arial size=2>NSRCA
3606</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>