An aircraft control system configured to be operably connected to at least one landing gear and at least one landing gear bay door of an aircraft, wherein the aircraft control system comprises: a user interface operable by a user to manually input first and second requests; and a landing gear controller communicatively coupled to the user interface and configured, in use, to: receive, from the user interface, a first indication indicative of user- operation of the user interface to input the first request, and to initiate movement of the landing gear bay door from a closed position to an open position on the basis of the first indication without initiating movement of the landing gear between an extended position and a retracted position; and receive, from the user interface, a second indication indicative of user- operation of the user interface to input the second request, and to initiate movement of the landing gear between the extended position and the retracted position on the basis of the second indication, wherein the user interface is mechanically changeable by the user, the first request comprises the user mechanically changing the user interface from a first state to a second state, and the second request comprises the user mechanically changing the user interface from the second state to a third state, characterised in that the user interface comprises a single user-movable device, and further characterised in that the first, second and third states are first, second and third positions, respectively, of the single user-movable device. a user interface operable by a user to manually input first and second requests; and a landing gear controller communicatively coupled to the user interface and configured, in use, to: receive, from the user interface, a first indication indicative of user- operation of the user interface to input the first request, and to initiate movement of the landing gear bay door from a closed position to an open position on the basis of the first indication without initiating movement of the landing gear between an extended position and a retracted position; and receive, from the user interface, a second indication indicative of user- operation of the user interface to input the second request, and to initiate movement of the landing gear between the extended position and the retracted position on the basis of the second indication, wherein the user interface is mechanically changeable by the user, the first request comprises the user mechanically changing the user interface from a first state to a second state, and the second request comprises the user mechanically changing the user interface from the second state to a third state, characterised in that the user interface comprises a single user-movable device, and further characterised in that the first, second and third states are first, second and third positions, respectively, of the single user-movable device. receive, from the user interface, a first indication indicative of user- operation of the user interface to input the first request, and to initiate movement of the landing gear bay door from a closed position to an open position on the basis of the first indication without initiating movement of the landing gear between an extended position and a retracted position; and receive, from the user interface, a second indication indicative of user- operation of the user interface to input the second request, and to initiate movement of the landing gear between the extended position and the retracted position on the basis of the second indication, wherein the user interface is mechanically changeable by the user, the first request comprises the user mechanically changing the user interface from a first state to a second state, and the second request comprises the user mechanically changing the user interface from the second state to a third state, characterised in that the user interface comprises a single user-movable device, and further characterised in that the first, second and third states are first, second and third positions, respectively, of the single user-movable device.