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Boy Scouts Aviation Merit Badge Control Surfaces Primary Control Surfaces Rudder Ailerons Elevator Aileron The ailerons are located near the rear end of the wing tip Aileron controls the roll of the plane Longitudinal axis Elevators The Elevators are located on the horizontal stabilizer of the tail Elevators controls the pitch of the plane Lateral axis Rudder The rudder is located on the vertical stabilizer of the tail Rudder controls the yaw of the plane Vertical axis Control Surfaces • Aileron – controls the roll of the plane • Elevator – controls the pitch, or the up and down, movement of the plane • Rudder – controls the yaw, or side to side, movement of the plane How the Control Surfaces Work Together for Flight • Take off down the runway – Aileron - level – Elevator – neutral – Rudder – neutral Control Surfaces • Straight Climb – Aileron - level – Elevator - up – Rudder – neutral Control Surfaces • Level Left Turn – Aileron – left up, right down – Elevator – neutral – Rudder – left rudder Control Surfaces • Climbing left turn – Aileron – left up, right down – Elevator – up – Rudder – left rudder Control Surfaces • Straight descent – Aileron - level – Elevator - down – Rudder – neutral Control Surfaces • Landing – Aileron - level – Elevator - down – Rudder – neutral Quick Quiz What control surface controls the pitch, or the up and down movement of the plane? • Rudder • Aileron • Elevator Answer: What control surface controls the pitch, or the up and down movement of the plane? • Rudder • Aileron • Elevator