A Wing ASSEMBLY CAPABLE OF INCREASIGN THE LIFT AND THE ANGLE OF STALL

摘要

A wing assembly has a sheet structure for increasing the lift and the angle of stall. The sheet structure locates above the wing or slopes upwards. The upper sheet can pivot with the trailing edge of the wing. The anhedral of slant sheet also can vary. The sheet is capable of being released or retracted or changed its configuration as required. A duct is formed between the sheet and the upper surface of the wing, and the airflow in the said duct accelerates and has great kinetic energy, which significantly increases the maximum lift coefficient and the angle of stall. Before optimizing, the maximum lift coefficient can increase more than 70% and the angle of stall can increase over 18 degree. The principle of present invention is novel and the structure thereof is simple, so it can be widely used in civil aircraft military aircraft and other machinery which can move in the fluid.