In a normal turn the ailerons are used briefly to bank your plane then once the plane is in a bank you use up elevator to maintain altitude . Most trainers have inherent stability which will try to level your plane from its bank so you will need to use the ailerons to keep it in its bank . When you are finished your turn you use opposite aileron to return to level flight . Not all planes fly the same as trainers , more advanced planes won't return to level flight when you let go of the sticks . Elevator has only up and down ,no left and right . Ailerons and rudder have left and right .