LIFTING PLANE OF AIRCRAFT AND AIRCRAFT Russian patent published in 2021 - IPC B64C3/14 B64C21/08 B64C23/06 B64C9/22 B64C9/34 

FIELD: aircraft.

SUBSTANCE: lifting plane (1) of the aircraft contains a leading edge (2) and a recess (3) located in the leading edge (2). The recess (3) contains two walls (6) designed to be parallel to the direction of the flow incident on the lifting plane (1), and the third wall (5), made with the possibility to face the flow incident on the lifting plane (1) when in flight. The lifting plane (1) also contains a retractable cover (4) which, with a recess (3), is configured so that when the retractable covering element (4) does not cover the recess (3), this recess (3) is exposed to an incident flow generating vortex. The third wall (5) of the recess (3) has a streamlined shape, repeating the secondary leading edge. The retractable covering element (4) is a retractable casing, which is designed to move along the leading edge (2) in the direction of the sweep of the lifting plane (1) and repeats the shape of the cross-section of the leading edge (2). Aircraft contains a lifting plane (1).

EFFECT: group of inventions is aimed at increasing the lifting force of the lifting plane, delaying the flow disruption.

7 cl, 5 dwg