An airfoil comprising a main wing and a high-lift body. The high-lift body defines a concave recess. The airfoil further comprises a sealing device having two sealing elements arranged in the concave recess. The sealing elements are plate-shaped and abut sectionally on the high-lift body and have side faces extending perpendicularly to the common rotational axis. When the high-lift body is moved between a retracted position and a deployed position, the sealing elements rotate relative to the main wing and relative to each other, such that an overlap between the sealing elements is smaller when the high-lift body is in the deployed position than when the high-lift body is in the retracted position.

An airfoil comprising a main wing and a high-lift body. The high-lift body defines a concave recess. The airfoil further comprises a sealing device having two sealing elements arranged in the concave recess. The sealing elements are plate-shaped and abut sectionally on the high-lift body and have side faces extending perpendicularly to the common rotational axis. When the high-lift body is moved between a retracted position and a deployed position, the sealing elements rotate relative to the main wing and relative to each other, such that an overlap between the sealing elements is smaller when the high-lift body is in the deployed position than when the high-lift body is in the retracted position.

A flap support mounting assembly employs a flap support having at least one laterally-oriented upper coupling and a pair of laterally-oriented lower couplings. A fail-safe pin engages the at least one laterally-oriented upper coupling to an upper rear-spar fitting. A pair of frangible pins engages the lower couplings to a pair of lower rear-spar fittings. The frangible pins are configured to shear and enable the flap support to rotate upwards about the fail-safe pin in response to a load induced on the flap support that creates a moment inducing a sufficient shear force to shear the frangible pins. The fail-safe pin is configured to shear allowing separation of the flap support and associated flap from the wing in a manner that inhibits damage to a rear spar and integral fuel tank in a wing structure.

A folding wing having a wing tip device (3) rotatable between flight and ground configurations, about an Euler axis of rotation (11). The wing tip device (3) and a fixed wing (1) are separated along an oblique cut plane (13) passing through the upper and lower surfaces of the folding wing. A rotational joint (15) for coupling the wing tip device (3) to the fixed wing (1) during rotation between the ground and flight configurations. The rotational joint includes a follower (17a) and a guide (17b), one which being fixed relative to the wing tip device and the other being fixed relative to the fixed wing. The follower and guide interlock such as by interlocking rings. The follower is received in the guide such that during rotation between the ground and flight configurations the follower moves along the arcuate path defined by the guide.

Airflow-dependent deployable fences for aircraft wings are described. An example apparatus includes a fence coupled to a wing of an aircraft. The fence is movable relative to the wing between a stowed position in which a panel of the fence extends along a skin of the wing, and a deployed position in which the panel extends at an upward angle away from the skin. The panel is configured to impede a spanwise airflow along the wing when the fence is in the deployed position. The fence is configured to move from the stowed position to the deployed position in response to an aerodynamic force exerted on a deployment vane of the fence.

Airflow-dependent deployable fences for aircraft wings are described. An example apparatus includes a fence coupled to a wing of an aircraft. The fence is movable relative to the wing between a stowed position in which a panel of the fence extends along a skin of the wing, and a deployed position in which the panel extends at an upward angle away from the skin. The panel is configured to impede a spanwise airflow along the wing when the fence is in the deployed position. The fence is configured to move from the stowed position to the deployed position in response to an aerodynamic force exerted on a deployment vane of the fence.

A wing having a winglet that provides a trailing-edge injection effect through a set of air outlets along the trailing-edge of the wing. The air flow is passively supplied by inlets formed at the leading edge of the wing that ingest air during flight, and directed to the outlets by ducts. The air flow may also be actively supplied by tapping into the engine bleed lines already in the wing of the aircraft. The trailing-edge injection effect reduces vortex drag, resulting in fuel savings in the operation of the aircraft.

A wing having a winglet that provides a trailing-edge injection effect through a set of air outlets along the trailing-edge of the wing. The air flow is passively supplied by inlets formed at the leading edge of the wing that ingest air during flight, and directed to the outlets by ducts. The air flow may also be actively supplied by tapping into the engine bleed lines already in the wing of the aircraft. The trailing-edge injection effect reduces vortex drag, resulting in fuel savings in the operation of the aircraft.

A manufacture and process for a winglet formed as a unitary structure by laying up and co-curing three ply-sets in a bifurcated configuration, without metal and fasteners, comprising three continuous surfaces: a first ply-set comprising a first continuous surface forming: an outboard surface of an upper blade; an outboard portion of a root region; and an outboard surface of a lower blade; a second ply-set forming a second continuous surface forming an inboard surface of the upper blade and an upper skin of the root region; and a third ply-set forming a third continuous surface forming an inboard surface of the lower blade and a lower skin of the root region . . . continuous surface. The root region being integral in the bifurcated configuration, matching a shape of an airfoil of a tip of a wing, and comprising two supports that comprise an additional ply-set shaped to receive an attachment system.

A manufacture and process for a winglet formed as a unitary structure by laying up and co-curing three ply-sets in a bifurcated configuration, without metal and fasteners, comprising three continuous surfaces: a first ply-set comprising a first continuous surface forming: an outboard surface of an upper blade; an outboard portion of a root region; and an outboard surface of a lower blade; a second ply-set forming a second continuous surface forming an inboard surface of the upper blade and an upper skin of the root region; and a third ply-set forming a third continuous surface forming an inboard surface of the lower blade and a lower skin of the root region . . . continuous surface. The root region being integral in the bifurcated configuration, matching a shape of an airfoil of a tip of a wing, and comprising two supports that comprise an additional ply-set shaped to receive an attachment system.