A cockpit rudder control mechanism is described for accepting aircraft control input utilizing rudder pedals depending from a movable carriage to rotate a shaft. The mechanism may be removed from the aircraft for maintenance and the position of the mechanism within the aircraft may be adjusted for a particular user. Movement of the rudder pedals is conveyed by linkages to a collar which rotates a shaft. The rotation of the shaft is measured for control input to the aircraft or is transferred to the mechanical control systems for the aircraft.