A system, comprising: a first controller configured to control a first flight control surface of an aerial vehicle; a second controller configured to control a second flight control surface of the aerial vehicle; a first override system comprising a mechanical linkage between the first controller and the second controller, wherein the first override system is configured such that: (i) while less than a first threshold amount of force is applied to the mechanical linkage by the first controller and the second controller, movement of the first controller causes a corresponding movement of the second controller and movement of the second controller causes a corresponding movement of the first controller, and (ii) while greater than the first threshold amount of force is applied to the mechanical linkage by the first controller and the second controller, the first controller and the second controller move separately relative to each other; and a second override system operable to permanently and physically disconnect the mechanical linkage between the first controller and the second controller responsive to greater than a second threshold amount of force applied to the mechanical linkage by the first controller and the second controller, wherein the second threshold amount of force is greater than the first threshold amount of force, and wherein, after the mechanical linkage is permanently and physically disconnected by the second override system, the first controller and the second controller are configured to move separately relative to each other responsive to less than the first threshold amount of force applied to the mechanical linkage by the first controller and the second controller. a first controller configured to control a first flight control surface of an aerial vehicle; a second controller configured to control a second flight control surface of the aerial vehicle; a first override system comprising a mechanical linkage between the first controller and the second controller, wherein the first override system is configured such that: (i) while less than a first threshold amount of force is applied to the mechanical linkage by the first controller and the second controller, movement of the first controller causes a corresponding movement of the second controller and movement of the second controller causes a corresponding movement of the first controller, and (ii) while greater than the first threshold amount of force is applied to the mechanical linkage by the first controller and the second controller, the first controller and the second controller move separately relative to each other; and (i) while less than a first threshold amount of force is applied to the mechanical linkage by the first controller and the second controller, movement of the first controller causes a corresponding movement of the second controller and movement of the second controller causes a corresponding movement of the first controller, and (ii) while greater than the first threshold amount of force is applied to the mechanical linkage by the first controller and the second controller, the first controller and the second controller move separately relative to each other; and a second override system operable to permanently and physically disconnect the mechanical linkage between the first controller and the second controller responsive to greater than a second threshold amount of force applied to the mechanical linkage by the first controller and the second controller, wherein the second threshold amount of force is greater than the first threshold amount of force, and wherein, after the mechanical linkage is permanently and physically disconnected by the second override system, the first controller and the second controller are configured to move separately relative to each other responsive to less than the first threshold amount of force applied to the mechanical linkage by the first controller and the second controller.