DEVICE FOR IMPROVEMENT OF AIRCRAFT LIFTING PROPERTIES Russian patent published in 2015 - IPC B64C23/06 B64C3/10 

FIELD: aviation.

SUBSTANCE: device for improvement of aircraft (A) lifting properties is a vortex generator designed as a lining pad installed on internal section of a slat. The device is designed as a profiled section of the slat continued to the wing fillet with a hull, it is formed along two sections of the wing leading edge: the first section - the internal plane of the slat; the second section - crossing of the part of the wing fillet leading edge with the hull and the plane parallel to the aircraft symmetry plane. The section is taken so that it continues the internal plane of the slat along the wing span without break. The device span size cover about 75% of the distance between the internal plane of the slat and the aircraft hull. The device has a cut in the lower part. The cut has a shape of semi-parabola limited by the plane parallel to the plane of an internal end face of the device, the cut is formed by crossing of internal and external surfaces of the device. The cut height is 34% from the dimensional height of the device.

EFFECT: improvement of aircraft lifting properties at near-critical angles of attack.

7 dwg