Patent ID: 8382044

Claim:
A high-lift system for being disposed on the wing of an aircraft, the high-lift system comprising: a leading edge slat movably arranged on the wing and being a foremost flap of the high lift system with a front edge being oriented opposed to a predetermined airflow which is directed to the wing for producing a lift force and with a rear edge lying opposed to the front edge and facing the wing, a flap kinematics for moving the leading edge slat between a retracted position and different extended positions for increasing lift, in which positions, a slot between the rear edge of the leading edge slat and the wing is in a closed state in which flow between the leading edge slat and the wing is hindered or effectively hindered, and a slot opening and closing device movably connected to the leading edge slat, by which the leading edge slat or a rear part of the leading edge slat, which comprises the rear edge of the slat, is rotatable or tiltable about an axis which runs in the wingspan direction such that in an extended position of the leading edge slat, independently of the position of the leading edge slat, the rear edge is movable from the closed state to an opened state, in which, through the slot, flow passes from the lower face to the upper face of the wing when the predetermined airflow is directed to the wing and thereafter movable again to a closed state.