Ive finally fixed the RX problem,i changed a bunch of stuff you guys said i should,flew without a hitch,now im having the plane pull to the left pretty bad when giving up elevator input,i just installed the matchbox recently and thought i had this problem fixed,now its doing it even worse,im purchasing better digital servos tomorrow,hopefully i can get them to track better.Any advice??

Could be your engine thrust angle.

Mike, just out of curiosity, what exactly did you change? This info could be useful to others in the future.


Shawn

I changed to nylon clevises on the engine end of the push rods,changed throttle servo,added voltage regulator to reciever,and did away with extension,moved the matchbox as far away from all electronics as i could,also moved the ignition and battery to the outside of the motor box instead of inside.

Mike

Engine torque has a stronger effect when you pitch the nose up
with elevator, and the airplane wants to pull to the left.
I myself am learning to deal with this by applying some right
rudder, which causes the plane to hold a straight vertical line.
Others will mix in some right rudder to advanced throttle positions,
as you use more throttle when going vertical.
Try one or the other or both... you'll be glad you did..

Gerald