There is no secondary effect of ailerons as there is with rudder. Ailerons turn the aircraft. Rudder yaws the aircraft, but in so doing, one wing travels faster than the other, generates more lift, and the aircraft turns as a result, but generally not as effectively as with ailerons. The rudder is also effective down to very low speeds, and that's why it's used in stall turns.
Ailerons alone, on MOST planes = adverse yaw.
Rudder causes yaw, causing the wing to lift + yaw = bank = turn. Ailerons will only bank a plane,
but if you then ad some "up" elevator (Which is now the Rudder) the plane "turns". If you use just ailerons with a flat wing like a quickie 500, and don't pull in some "up" elevator, your going in-fast!
Please explain if I'm wrong here- it's worked that way for years, and if I'm all wet on this, I need to tell my planes.
Jetts