Abstract: A control system for an aircraft allowing a pilot of the aircraft to control aerodynamic means, the control system comprising a processing unit for generating control commands, the control commands being transmitted to control devices to modify a position of the aerodynamic means and to pilot the aircraft according to four control axes having a pitch control axis, a roll control axis, a yaw movement control axis and a lift control axis, the control system comprising a control member generating control setpoints, the control setpoints being transmitted to the processing unit generating the control commands under the dependency of the control setpoints, the control member being mechanically disconnected from the control devices.

Abstract: An apparatus for sensing an elastic deformation of a hollow element, wherein the apparatus comprises at least one sensor that is arranged in a watertight capsule which is connected in a watertight manner to a connector device comprising at least one watertight electrical connector that is electrically connected to the at least one sensor, the at least one watertight electrical connector forming a first waterproof barrier of the connector device between an outside of the watertight capsule and the at least one sensor, and wherein the connector device comprises at least one further waterproof barrier that is formed between the first waterproof barrier and the at least one sensor.

Abstract: A control system for an aircraft allowing a pilot of the aircraft to control aerodynamic means, the control system comprising a processing unit for generating control commands, the control commands being transmitted to control devices to modify a position of the aerodynamic means and to pilot the aircraft according to four control axes having a pitch control axis, a roll control axis, a yaw movement control axis and a lift control axis, the control system comprising a control member generating control setpoints, the control setpoints being transmitted to the processing unit generating the control commands under the dependency of the control setpoints, the control member being mechanically disconnected from the control devices.

Abstract: An apparatus for sensing an elastic deformation of a hollow element, wherein the apparatus comprises at least one sensor that is arranged in a watertight capsule which is connected in a watertight manner to a connector device comprising at least one watertight electrical connector that is electrically connected to the at least one sensor, the at least one watertight electrical connector forming a first waterproof barrier of the connector device between an outside of the watertight capsule and the at least one sensor, and wherein the connector device comprises at least one further waterproof barrier that is formed between the first waterproof barrier and the at least one sensor.

Abstract: A flight instrument that displays the rotational speed of a main rotor of a rotary-wing aircraft, with the flight instrument including display means, a first indicator of a setpoint for the rotational speed of the main rotor, a second indicator of the first current value of the rotational speed of the main rotor, and third and fourth indicators of the limit values of the rotational speed. The setpoint for the rotational speed of the main rotor is variable and the first indicator is stationary on the display means, with the second, third and fourth indicators being movable in relation to the first indicator.

Abstract: A flight instrument that displays the rotational speed of a main rotor of a rotary-wing aircraft, with the flight instrument including display means, a first indicator of a setpoint for the rotational speed of the main rotor, a second indicator of the first current value of the rotational speed of the main rotor, and third and fourth indicators of the limit values of the rotational speed. The setpoint for the rotational speed of the main rotor is variable and the first indicator is stationary on the display means, with the second, third and fourth indicators being movable in relation to the first indicator.

Abstract: For emergency piloting of a manual flight control system (7) of an aircraft (1), in the event of flexible connection means (26) breaking, an upstream control device (8) takes authority over the electronic control unit (29) of series actuator (21). An output pivoting quadrant (25) is subjected by a centering rod (22) to a blocking and centering action. In the event of the system breaking, the output pivoting quadrant (25) forms a bearing point for the series actuator (21), so that an emergency control actuate a airfoil surface (11).

Abstract: For emergency piloting of a manual flight control system (7) of an aircraft (1), in the event of flexible connection means (26) breaking, an upstream control device (8) takes authority over the electronic control unit (29) of series actuator (21). An output pivoting quadrant (25) is subjected by a centering rod (22) to a blocking and centering action. In the event of the system breaking, the output pivoting quadrant (25) forms a bearing point for the series actuator (21), so that an emergency control actuate a airfoil surface (11).

Abstract: A flight control system for controlling the pitch of an aircraft having a vertical takeoff capability and an orientable lift direction may include a first device, to which a pitch command determined by a computing unit is applied, for actuating an element acting on the pitch of the aircraft. A second device of the flight control system receives an orientation order to actuate an element altering the orientation of the lift direction. Another device determines an orientation order for optimizing a flight parameter based on the pitch command determined by the computing unit. Yet another device subtracts from the pitch command the pitch contribution due to actuating the orientation element. The difference value acts as a pitch command to the first device.

Abstract: Flight control system for controlling the pitch of an aircraft with vertical takeoff and with an orientable lift direction.