Originally Posted by coreman
lateral balance makes more of a difference than people realize and the problem with "trimming it out with aileron" is that the fix is only good at one speed. go faster and the trim is more effective and it goes beyond what is needed and slow down and it isn't enough. If the surfaces are neutral, the speed won't change the trim
Thank you for that explanation, coreman. It totally explains why I couldn't get my RP to fly straight. No amount of aileron or rudder trim ever worked for long. Then one day, months later, I clued into the fact that one wing was 4.5 grams heavier than the other. A quarter taped to the underside of the wing at just the right spot made all the difference.