REFLECTOR: roll trim

[KMis178813 at aol.com]

Doug
   You did not mention if the ball is centered?? Center the ball  by 
adjusting the rudders and then work on shimming the wings to get the ailerons  equal. 
Shimming the rudders is easy temporarily gluing a pop cycle stick to  hold one 
of the rudder out farther will give you a idea of how much it  needs. Be 
careful not to move the rudder in, at least to much, because if you  hide the 
rudder behind the winglet you have a better chance of rudder flutter.  Once the 
ball is centered the plane should fly straight with no roll  tendency's but the 
ailerons may be different, left to right, in straight and  level flight. 
Shimming the wings, leading edge up on one side and down on the  other, with a shim 
in between the center spar and the wing spar (on the outboard  bolts). A 
piece of aluminum .023 is what I have been using. Shimming both wings  moved the 
ailerons about .25 measured on the inboard side of the  aileron. You do not 
need to shim both wings and/or the same amount.  Equaling the ailerons picked up 
about 4 knots. Good Luck
 
    Ken
 
 
 
In a message dated 2/20/2009 8:18:57 P.M. Eastern Standard Time,  
douglas.holub at gmail.com writes:

When I let go of the stick, the plane wants to  roll right. I plan on using 
the EZ-Pilot for aileron trim (I haven't turned it  on in flight yet), but I 
would feel better if the plane flew straight hands  free without the EZ-Pilot. 
What should I adjust? Should I add a fiberglass  trim tab outboard below the 
left wing?
 
Doug Holub
Velocity Standard FG w/ electric nose  lift


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