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<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=824513514-01052003>You
can not be sure if this is a incidence problem.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=824513514-01052003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=824513514-01052003>Try
knife edge. If it does the same thing,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=824513514-01052003>Moving
CG forward, Decreasing wing incidence, or Mix up elevator with
Rudder.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=824513514-01052003>Also,
check Decalage, Incidence checking in the trim chart.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=824513514-01052003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><A
href="http://www.nsrca.org/trimA.htm">http://www.nsrca.org/trimA.htm</A></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff size=2>My
plane does this too, but the incidences are correct. CG is fine. So,
I mix the elevator with rudder.</FONT></SPAN></DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff size=2>BE
Very sure to check both side knife edge flights.</FONT></SPAN></DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff
size=2>Trimming often takes very long time. Every adjustment is affected
by CG changes.</FONT></SPAN></DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff size=2>Thus,
CG is the most important thing.</FONT></SPAN></DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff size=2>By the
way, have you checked the CG with & without Fuel?</FONT></SPAN></DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff size=2>I do
both.</FONT></SPAN></DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff size=2>Hope
this helps,</FONT></SPAN></DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff
size=2>Ihncheol Park</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=824513514-01052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<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> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>Larry
Diamond<BR><B>Sent:</B> Thursday, May 01, 2003 7:13 AM<BR><B>To:</B>
NSRCA<BR><B>Subject:</B> Trimming Question<BR><BR></FONT></DIV><!-- Converted from text/rtf format -->
<P><FONT face=Arial size=2>I am sorting out an H9 Aresti 40 that I intend to
start with Sportsman until I get another plane sorted out.</FONT> </P>
<P><FONT face=Arial size=2>CG appears to be very close. It holds a 45 degree
upline straight and needs a touch of elevator to start the pull through the
1/2 Reverse Cuban 8. Inverted flight only requires a touch of down
elevator.</FONT></P>
<P><FONT face=Arial size=2>My tank location was modified from the intended
location and is on CG, to be read, "The front of the fuel tank is about 1/4
inch forward of the leading edge. I have mounted a YS 63 and has unlimited
vertical after 4 tanks of fuel. CG is currently located at 4" back from the LE
per the instructions (aft range). This tank location result in outstanding
ground handling on grass. Zero tendency to nose over, not even
close...</FONT></P>
<P><FONT face=Arial size=2>The problem is in level flight it pitches to the
belly with rudder input. Made for an interesting landing when I corrected with
a touch of rudder for cross wind. </FONT></P>
<P><FONT face=Arial size=2>Is this an incidence problem? I haven't tried a
power off dive yet to check it out due to time. What else could I look
for?</FONT></P>
<P><FONT face=Arial size=2>Engine - YS 63 New (2 tanks for break in and 4
flights)</FONT> <BR><FONT face=Arial size=2>Prop - APC 11x8</FONT> <BR><FONT
face=Arial size=2>Max RPM - 11,400 (slightly rich still)</FONT> </P>
<P><FONT face=Arial size=2>Thanks,</FONT> </P>
<P><FONT face=Arial size=2>Larry K. Diamond</FONT> <BR><FONT face=Arial
size=2>Program Manager, KEG</FONT> </P>
<P><FONT face=Arial size=2>Phone: (812) 634-4286</FONT> <BR><FONT
face=Arial size=2>Pager: (877) 575-4163</FONT> <BR><FONT
face=Arial size=2>Fax: (812) 634-4007</FONT>
<BR><FONT face=Arial size=2>E-Mail: ldiamon@kimball.com</FONT>
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