A vehicle comprising: a rotor and a stator; at least one planar control surface (10a, 10b, 30a, 30b) coupled to the rotor such that the control surface extends perpendicularly from the periphery of the rotor, wherein the rotor is configured to rotate relative to the stator such that, in use, the at least one planar control surface moves from a first position to a second position, and wherein: in the first position the planar control surface is controllable to affect substantially only the pitch of the vehicle and in the second position the planar control surface is controllable to affect substantially both of the pitch and yaw of the vehicle, or substantially only the yaw, or in the first position the planar control surface is controllable to affect substantially only the yaw of the vehicle and in the second position the planar control surface is controllable to affect substantially both of the pitch and yaw of the vehicle, or substantially only the pitch of the vehicle; and an actuating system, characterized in that the actuating system comprises first and second actuators, wherein, in use, when the first actuator is in a first configuration the rotor is rotated such that the planar control surface is arranged in the first position, and when the first actuator is in a second configuration the rotor is rotated such that the planar control surface rotates about the central axis of the rotor to be arranged in the second position, wherein the first and second actuators comprise pistons and wherein the first and second actuators are pivotably connected to the stator and the rotor and wherein, in use, when the first actuator expands the second actuator retracts to cause rotation of the rotor. a rotor and a stator; at least one planar control surface (10a, 10b, 30a, 30b) coupled to the rotor such that the control surface extends perpendicularly from the periphery of the rotor, wherein the rotor is configured to rotate relative to the stator such that, in use, the at least one planar control surface moves from a first position to a second position, and wherein: in the first position the planar control surface is controllable to affect substantially only the pitch of the vehicle and in the second position the planar control surface is controllable to affect substantially both of the pitch and yaw of the vehicle, or substantially only the yaw, or in the first position the planar control surface is controllable to affect substantially only the yaw of the vehicle and in the second position the planar control surface is controllable to affect substantially both of the pitch and yaw of the vehicle, or substantially only the pitch of the vehicle; and an actuating system, characterized in that the actuating system comprises first and second actuators, wherein, in use, when the first actuator is in a first configuration the rotor is rotated such that the planar control surface is arranged in the first position, and when the first actuator is in a second configuration the rotor is rotated such that the planar control surface rotates about the central axis of the rotor to be arranged in the second position, wherein the first and second actuators comprise pistons and wherein the first and second actuators are pivotably connected to the stator and the rotor and wherein, in use, when the first actuator expands the second actuator retracts to cause rotation of the rotor. in the first position the planar control surface is controllable to affect substantially only the pitch of the vehicle and in the second position the planar control surface is controllable to affect substantially both of the pitch and yaw of the vehicle, or substantially only the yaw, or in the first position the planar control surface is controllable to affect substantially only the yaw of the vehicle and in the second position the planar control surface is controllable to affect substantially both of the pitch and yaw of the vehicle, or substantially only the pitch of the vehicle; and an actuating system, characterized in that the actuating system comprises first and second actuators, wherein, in use, when the first actuator is in a first configuration the rotor is rotated such that the planar control surface is arranged in the first position, and when the first actuator is in a second configuration the rotor is rotated such that the planar control surface rotates about the central axis of the rotor to be arranged in the second position, wherein the first and second actuators comprise pistons and wherein the first and second actuators are pivotably connected to the stator and the rotor and wherein, in use, when the first actuator expands the second actuator retracts to cause rotation of the rotor.