Shim the motor mount for a 1/2" difference between the left and right prop tips. THIS NUMBER IS ONLY GOOD IF THE PROP USED FOR THE MEASURMENT IS 12" DIAMETER.

So bolt a 12" prop on it....and take the measurements. Or do the trigonometry on the 15" prop...either way...setup about 2.33degs of right thrust.

Then Install a Nose ring. Without the nose ring there is nothing you can do to set tot he thrustline properly. The thrust will be constantly changing...the model under G loads of pulling corners and throttle up and down changes the thrust line will change...and it will change a bunch.

Flat turning means the model is Yawing in flight. Fly directly away from you and into the wind or directly downwind. Is the model flying straight or is curving left or right. If the model is yawing in a horizontal line then its flat turning...the wings are level but the model is turning....

This is how I set my rudder trim...you need to do this as various throttle settings...they will have an affect.

If you don't have a nose ring in the model you are wasting your time. You can't tell where to set it becasue its moving all the time.

If you don't have close to the offset I talk about you are again wasting your time. If we already know that about 2.33degs is about right....then it does ZERO good to try it at 1 deg of offset.


Get the changes made and we'll walk you through it...its a really good model. I have my model here for a reference.



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