Fore flap disposed on the wing of an aircraft

A leading edge slat arranged on an aerofoil of an aircraft, wherein

• the aerofoil comprises a main wing with an upper surface skin, a lower surface skin and a profile nose, and the leading edge slat is provided on a front of the main wing and has a profile nose directed forwards and a trailing edge directed rearwards, facing the main wing, and from a retracted cruise setting, in which the leading edge slat lies flat against the front of the main wing and supplements the profile of the latter to form a shape suitable for cruise flight, can be extended for increasing the lift with an increase in curvature and extension of a wing profile in the wing chordwise direction, wherein
• the leading edge slat in a first, partially extended setting with the trailing edge lying flat against the main wing and in a second, further extended setting with the trailing edge spaced apart from the profile nose of the main wing so as to open up a gap feeding high-energy air from the lower surface of the leading edge slat to the upper surface of the main wing,
• wherein the leading edge slat comprises a main body and the trailing edge part facing the main wing, which can be bent flexibly around the spanwise direction of the leading edge slat relative to the main body, and on which the trailing edge of the leading edge slat is provided, and which, by a device generating a contact force, is loaded for making contact between the leading edge slat trailing edge and the profile nose of the main wing,
• wherein the trailing edge part is connected with the main body of the leading edge slat via an articulation, in order that the trailing edge part can be bent flexibly around the spanwise direction of the leading edge slat relative to the main body,
• wherein the articulation is formed by an elastic-in-bending element,
• wherein the elastic-in-bending element is provided on an outer skin forming the upper surface of the leading edge slat, and
• wherein the device generating the contact force is provided connecting the lower surface of the trailing edge part with the main body of the leading edge slat.