An aircraft with rear mounted engines, comprising a vertical tail plane and a horizontal tail plane, in which the engines are mounted on top of the horizontal tail plane, such that the horizontal tail plane comprises an inner fixed part attached to the fuselage of the aircraft, the inner fixed part comprising an elevator, and two outer movable parts, each one of the outer movable parts being located at each side end of the horizontal tail plane which is furthest away from the fuselage of the aircraft, such that both the inner fixed part and the outer movable parts are at least partially subjected to a flow coming from the engines when the engines are in use.

An aircraft with rear mounted engines, comprising a vertical tail plane and a horizontal tail plane, in which the engines are mounted on top of the horizontal tail plane, such that the horizontal tail plane comprises an inner fixed part attached to the fuselage of the aircraft, the inner fixed part comprising an elevator, and two outer movable parts, each one of the outer movable parts being located at each side end of the horizontal tail plane which is furthest away from the fuselage of the aircraft, such that both the inner fixed part and the outer movable parts are at least partially subjected to a flow coming from the engines when the engines are in use.

A rotorcraft having at least one stabilizer device of the tail plane and/or of the tail fin type. At least one stabilizer device is a variable wing area stabilizer device comprising an airfoil member provided with a stationary airfoil surface and a movable airfoil surface. A control system is connected to a mover system for moving the movable airfoil surface in translation between a refracted position for occupying when the rotorcraft has a forward speed less than a first speed threshold, and an extended position for occupying when the rotorcraft has a forward air speed greater than a second speed threshold greater than the first speed threshold.

A rotorcraft having at least one stabilizer device of the tail plane and/or of the tail fin type. At least one stabilizer device is a variable wing area stabilizer device comprising an airfoil member provided with a stationary airfoil surface and a movable airfoil surface. A control system is connected to a mover system for moving the movable airfoil surface in translation between a refracted position for occupying when the rotorcraft has a forward speed less than a first speed threshold, and an extended position for occupying when the rotorcraft has a forward air speed greater than a second speed threshold greater than the first speed threshold.

An air vehicle has a body, more than one wing located on the body creating a lifting force, at least one control surface located on the wing and movable along the direction in which the wing extends, an open position in which the control surface moves out of the wing in the direction in which the wing extends and increases the lifting force acting on the body, a closed position in which the control surface is moved from the open position and brought to the wing, a main actuator moving the control surface between the open and closed positions, at least one shaft enabling the control surface to be moved with the triggering of the main actuator and having one end connected to the control surface, and at least one additional actuator enabling the attack angle of the wings to be changed by rotating the wings on the body.

An air vehicle has a body, more than one wing located on the body creating a lifting force, at least one control surface located on the wing and movable along the direction in which the wing extends, an open position in which the control surface moves out of the wing in the direction in which the wing extends and increases the lifting force acting on the body, a closed position in which the control surface is moved from the open position and brought to the wing, a main actuator moving the control surface between the open and closed positions, at least one shaft enabling the control surface to be moved with the triggering of the main actuator and having one end connected to the control surface, and at least one additional actuator enabling the attack angle of the wings to be changed by rotating the wings on the body.

A telescoping tail assembly for use on an aircraft that has a fore-aft length. The telescoping tail assembly includes a housing extending in an aftward direction and a tailboom slidable along the housing into various positions including an extended position and a retracted position. A jackscrew is coupled to the tailboom. An actuator is coupled to the jackscrew and is configured to selectively rotate the jackscrew to translate the tailboom between the plurality of positions. The tailboom has one or more control surfaces coupled thereto. The tailboom increases the fore-aft length of the aircraft in the extended position and decreases the fore-aft length of the aircraft in the retracted position.

A telescoping tail assembly for use on an aircraft that has a fore-aft length. The telescoping tail assembly includes a housing extending in an aftward direction and a tailboom slidable along the housing into various positions including an extended position and a retracted position. A jackscrew is coupled to the tailboom. An actuator is coupled to the jackscrew and is configured to selectively rotate the jackscrew to translate the tailboom between the plurality of positions. The tailboom has one or more control surfaces coupled thereto. The tailboom increases the fore-aft length of the aircraft in the extended position and decreases the fore-aft length of the aircraft in the retracted position.