Systems and methods are provided for decoupling movable control surfaces. Such systems may detect that a movable control surface is in a non-responsive state, such as a hard-over, and decouple the movable control surface from the main, fixed, control surface. The control surfaces may be coupled to an aircraft. A controller of the aircraft may detect the nonresponsive movable control surface, provide instructions to decouple the movable control surface, and compensate for the decoupling of the movable control surface in instructions provided to flight systems of the aircraft.

Systems and methods are provided for decoupling movable control surfaces. Such systems may detect that a movable control surface is in a non-responsive state, such as a hard-over, and decouple the movable control surface from the main, fixed, control surface. The control surfaces may be coupled to an aircraft. A controller of the aircraft may detect the nonresponsive movable control surface, provide instructions to decouple the movable control surface, and compensate for the decoupling of the movable control surface in instructions provided to flight systems of the aircraft.

An aircraft high-lift device comprising a kinematic chain connected to flaps, the kinematic chain comprising a plurality of shafts connected by coupling systems. This high-lift device comprises at least one differentiated coupling system different from the non-differentiated coupling systems, the differentiated coupling system being configured to be coupled to an adapter and comprising at least one poka-yoke feature. Another subject of the disclosure is an aircraft which comprises at least one high-lift device.

An aircraft high-lift device comprising a kinematic chain connected to flaps, the kinematic chain comprising a plurality of shafts connected by coupling systems. This high-lift device comprises at least one differentiated coupling system different from the non-differentiated coupling systems, the differentiated coupling system being configured to be coupled to an adapter and comprising at least one poka-yoke feature. Another subject of the disclosure is an aircraft which comprises at least one high-lift device.

A flap slat control lever and a method for operating the lever are disclosed. The lever includes: a first displacement sensor to detect a displacement of the flap slat control lever and generate a first displacement detection signal; a second displacement sensor to detect the displacement of the flap slat control lever and generate a second displacement detection signal; a first control command module to receive the first displacement detection signal; and a second control command module to receive the second displacement detection signal, wherein the first control command module is in a standby state and the second control command module is in a working state.

A multirotor drone comprises a main body and an air channel embedded within the main body having an air inlet on the surface of the main body, multiple propellers that induce an air flow toward the air inlet and into the air channel, a microcontroller positioned and configured to control navigation of the drone by actuation of the plurality of propellers, an air scoop having a section positioned at the outer surface of the main body adjacent to the air inlet which is adjustable so as to capture and divert air into the air inlet and air channel or to block air flow into the air inlet, and a gas sensor positioned within the air channel. The air scoop is positioned to capture air flow from at least one of the plurality of propellers into the air channel and to the gas sensor.

Apparatus for improving flow characteristics around aircraft wings by obstructing air flow through an aperture formed in a wing skin for a movable duct or track are disclosed. In one embodiment, the apparatus comprises a substantially rigid panel movable at least partially across the aperture for at least partially occluding the aperture and for accommodating movement of a slat track extending through the aperture. In another embodiment, the apparatus comprises a hinged panel configured to swing outwardly from an outer side of the wing skin toward an open position to accommodate movement of an anti-icing duct extending through the aperture and to swing toward a closed position at least partially occluding the aperture.

Apparatus for improving flow characteristics around aircraft wings by obstructing air flow through an aperture formed in a wing skin for a movable duct or track are disclosed. In one embodiment, the apparatus comprises a substantially rigid panel movable at least partially across the aperture for at least partially occluding the aperture and for accommodating movement of a slat track extending through the aperture. In another embodiment, the apparatus comprises a hinged panel configured to swing outwardly from an outer side of the wing skin toward an open position to accommodate movement of an anti-icing duct extending through the aperture and to swing toward a closed position at least partially occluding the aperture.

A C-shaped connection assembly transmits loads in a load plane between a first and a second wing element. The connection assembly comprises a first and a second L-shaped load-bearing device. Each load-bearing device comprises a joint region and two legs extending parallel to the load plane and away from the joint region towards respective end regions. One leg of the first load-bearing device extends parallel to one leg of the second load bearing device. These legs are connected to one another. Two coupling portions which connect the connection assembly to the second wing element are formed in the respective joint regions of the load-bearing devices. Two further coupling portions which connect the connection assembly to the first wing element are formed in respective free end region of the load-bearing device and the joint region of the second load-bearing device.

A seal is disclosed for a wing for providing an aerodynamic seal between a fixed aerofoil and a movable control surface.