Discussions

I have a 2 lb Easy Star with rudder and elevator. No aileron since the stock plane doesn't come with any.

I have a good proportional gain for the elevator servo, so it maintains good pitch attitude during Stabilize mode. However, with the pilot's hands off the stick in Stabilize mode, the aircraft will eventually start banking by itself toward the RIGHT. It's always to the right. No matter how high of a gain I set for the Rudder servo, it still banks to the right.  The plane weight is symmetrical at both wings, there is nothing that would cause it to weigh to one side. What could be the problem?