Coupled ailerons and rudder are controls that work together to enhance aircraft handling. This connection is made possible through rudder-aileron interconnect springs. These springs automatically adjust the rudder when the ailerons are moved. For example, if the control wheel is turned to roll the aircraft right, the spring also moves the right rudder pedal forward. This action helps counteract any yawing motion that might cause the nose of the aircraft to turn left. In situations like crosswind landings, where a slip is needed, pilots can override these springs. In larger aircraft, such as the Convair 580, this can be done by using opposite direction rudder and aileron trim inputs.
