At 07:27 AM 5/30/2006, you wrote: >Another thing I just re-called is models generally don't have deferential >ailerons. It's 20 degrees up and down not 20-10, but thanks for the >discussion.
+++++++++++++++++++++++++++++++++++++++++++++++++++ The "differential aileron" travel , as used on the KR, places additional drag on the "down" wing in the turn, eliminating most of the adverse yaw problem and eliminating the need for co-ordinated rudder in the turn. Next time you fly a spam can, roll into a turn without rudder and note that the nose does a momentary swing in the opposite direction and that you need rudder input to overcome this adverse yaw and center the ball. On the vertical stabilizer, mine is built with zero offset, as I believe the plans call for, and my 0-200 is set for zero offset. My KR requires no rudder trim tab for level cruise flight and tracks a straight line course with my feet on the floor. As always, your results may vary. :-) Larry Flesner