Abstract: A method and a system for providing a rotorcraft with assistance in taking off from a slope. The rotorcraft includes at least one lift rotor provided with a plurality of blades, control devices for controlling the pitches of the blades, and landing gear provided with at least three ground contact members. The method comprises a step of measuring a piece of information relating to the forces to which each ground contact member is subjected during a landing phase for landing on the slope, a step of measuring at least one piece of information relating to the pitches of the blades during the landing phase, and a control step for controlling the pitches of the blades during the takeoff phase during which the rotorcraft takes off after the landing as a function of the measurements taken during the landing in order to enable a takeoff to be performed that is safe and simplified.

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 method and a system for providing a rotorcraft with assistance in taking off from a slope. The rotorcraft includes at least one lift rotor provided with a plurality of blades, control devices for controlling the pitches of the blades, and landing gear provided with at least three ground contact members. The method comprises a step of measuring a piece of information relating to the forces to which each ground contact member is subjected during a landing phase for landing on the slope, a step of measuring at least one piece of information relating to the pitches of the blades during the landing phase, and a control step for controlling the pitches of the blades during the takeoff phase during which the rotorcraft takes off after the landing as a function of the measurements taken during the landing in order to enable a takeoff to be performed that is safe and simplified.

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 method of the invention for controlling the pitch of the blades of a tail rotor of a rotary-wing aircraft includes the following operations: a) generating a main control for the pitch of the blades of the tail rotor as a function of a control member for controlling the pitch of the blades of the tail rotor that is actuated by a pilot of the aircraft; b) generating a collective pitch and yaw decoupling control as a function of the collective pitch of the rotary wing; c) generating a bias control that is variable as a function of the flying speed of the aircraft and of the position of the control member; and d) adding the bias control to the decoupling control and to the main control in order to obtain an overall control, thereby controlling the pitch of the blades of the tail rotor.

Abstract: A method of the invention for controlling the pitch of the blades of a tail rotor of a rotary-wing aircraft includes the following operations: a) generating a main control for the pitch of the blades of the tail rotor as a function of a control member for controlling the pitch of the blades of the tail rotor that is actuated by a pilot of the aircraft; b) generating a collective pitch and yaw decoupling control as a function of the collective pitch of the rotary wing; c) generating a bias control that is variable as a function of the flying speed of the aircraft and of the position of the control member; and d) adding the bias control to the decoupling control and to the main control in order to obtain an overall control, thereby controlling the pitch of the blades of the tail rotor.