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<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>Thank you</span></font><font size=2 color=navy
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><span lang=EN-GB>Georgie</span></p>
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style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>I will not convert my CAP
into an Edge </span></font><font size=2 color=navy face=Wingdings><span
style='font-size:10.0pt;font-family:Wingdings;color:navy'>J</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>But I will apply some dihedral,</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Waiting for Nat to tell
me what he means with </span></font><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial'>"Slaunch" the wing tips.</span></font></p>
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10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Regards</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Patrick</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Oorspronkelijk bericht-----<br>
<b><span style='font-weight:bold'>Van:</span></b> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org] <b><span style='font-weight:bold'>Namens </span></b>George
Kennie<br>
<b><span style='font-weight:bold'>Verzonden:</span></b> zondag 7 augustus 2005
3:03<br>
<b><span style='font-weight:bold'>Aan:</span></b> discussion@nsrca.org<br>
<b><span style='font-weight:bold'>Onderwerp:</span></b> Re: Advise how to
reduce rudder to roll coupling</span></font></p>
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<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Patrick, <br>
What you're experiencing is known as "adverse roll couple"! You can
prove this just by flying right side up and applying full rudder deflection in
either direction and you will see that the airplane will roll in the opposite
direction to whatever rudder you are applying.The cause of the phenomenon is
that the wing is located too far below the Datum line without sufficient
dihedral to compensate for the offset. Aside from trimming it out with your
radio, the only alternative is to saw the wing in half and adding the correct
amount of dihedral which is the better alternative to achieving a correctly
neutral flying airplane. However you will still have to deal with the pitch
condition and if you decide to do whats aerodynamically required to correct
this anomaly you will no longer have an airplane that you can honestly call a
Cap! <br>
The easiest solution, if you must persist in flying a "scale type"
airplane, is to sell the Cap and buy an Edge, as it has a much better force
arrangement (very close to a neutral flying airplane). <br>
Georgie </span></font></p>
<p style='margin-left:35.4pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>PPandelaers wrote: </span></font></p>
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<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Hi folks,</span></font></p>
</div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font> </p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Got a Cap 232 ARF of some
unknown brand “Hype” in </span></font><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Europe</span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>.
Many problems, first of too heavy, wing profile weird but symmetric. High speed
stalls at a blink.</span></font><span lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Size 80” wingspan.</span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Now the question. Can
make it fly pretty good with a DA50, but there’s this enormous
roll-coupling anytime you touch rudder. Also some pulling to the gear, but
nothing unusual.. Best way to test it is to fly knife edge, it rolls on
it’s back in both directions, very quickly! The wing has NO
dihedral. CG is definitely OK, falls nicely straight down on stall turns</span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Thought first it had to
do with dihedral, but in knife edge, the wing doesn’t fly? What could it
have do with it? Tried on simulator AFPD, roll-effect by lack of dihedral is
minor.</span></font><span lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>So, I thought it’s
the shape of the rudder, I have to increase the bottom portion. So I did to a
very significant amount, lowering the center (balance of the surface if you cut
it out in cardboard) of the rudder-surface about 1 “, I noticed
some real improvement, but still far from OK. I had hoped that this much would
have reversed the rolling direction. </span></font><span lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Any ideas on what I could
do? Mixing my radio, 20% rudder to roll, still way insufficient.</span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Thx!</span></font><span
lang=EN-GB> </span></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'><br>
Patrick</span></font><span lang=EN-GB> </span></p>
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lang=EN-GB> </span></p>
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lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-GB> </span></p>
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</blockquote>
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