Abstract: An aircraft wing is disclosed including a closed surface wing tip device which includes an element or actuator within the wing tip for deforming/morphing the shape of the wing tip between geometrical configurations having different aerodynamic properties, for example including one with better overall fuel efficiency for a shorter journey and one with overall fuel efficiency better suited for a longer journey. The device includes a lower winglet with an essentially planar portion spaced apart from the main body of the wing by a blended transition region which is shaped such that the curvature of the local dihedral increases in the outboard direction. The device includes an upper aerofoil structure which with the winglet essentially forms the closed surface. There is also disclosed an aircraft wing tip device having a sigmoid shaped (e.g. S-shaped) aerofoil structure blending in with a main wing of the aircraft.

Abstract: An assembly-ready joint for an aircraft assembly is disclosed. The joint includes a first joint part having a spigot. The joint also has a second joint part with a housing. A floating socket is in an interior of the housing. The second joint part receives the spigot in the floating socket. The joint is arranged to receive a curable medium, such as curable resin, in the interior to contract between the housing and the floating socket.

Abstract: An aircraft wing is disclosed including a closed surface wing tip device which includes an element or actuator within the wing tip for deforming/morphing the shape of the wing tip between geometrical configurations having different aerodynamic properties, for example including one with better overall fuel efficiency for a shorter journey and one with overall fuel efficiency better suited for a longer journey. The device includes a lower winglet with an essentially planar portion spaced apart from the main body of the wing by a blended transition region which is shaped such that the curvature of the local dihedral increases in the outboard direction. The device includes an upper aerofoil structure which with the winglet essentially forms the closed surface. There is also disclosed an aircraft wing tip device having a sigmoid shaped (e.g. S-shaped) aerofoil structure blending in with a main wing of the aircraft.

Abstract: An assembly-ready joint for an aircraft assembly is disclosed. The joint includes a first joint part having a spigot. The joint also has a second joint part with a housing. A floating socket is in an interior of the housing. The second joint part receives the spigot in the floating socket. The joint is arranged to receive a curable medium, such as curable resin, in the interior to contract between the housing and the floating socket.