2results about How to "Delayed air separation" patented technology

This invention discloses a tilt-lift short takeoff and landing (STOVL) aircraft and its control method, comprising a fuselage, wing assembly, multi-layered distributed propulsion system, tilt drive assembly, and control unit. The wing is hinged to the fuselage via a pivot in the mid-rear section of the chord, and the tilt drive assembly drives the wing to rotate and adjust the angle of attack. The multi-layered distributed propulsion system includes a first rotor assembly located in the mid-rear section to the wingtip region of the wing and a second rotor assembly located on the lower surface of the wing near the fuselage. During cruise, the first rotor assembly is stopped and feathered, and the propulsion system tilts synchronously with the wing. This invention, through a layered distributed propulsion layout and synchronous wing tilting for synergistic lift enhancement, solves the problems of insufficient control torque at low speeds and high cruise energy consumption, achieving a balance between STOVL performance and cruise economy.

The utility model discloses a distributed power short-distance take-off and landing aircraft which comprises an aircraft body, a left wing, a right wing and an empennage assembly, a plurality of power cabins are arranged on the left wing and the right wing at intervals, the power cabins are arranged below the left wing and the right wing respectively, and propellers are connected with the power cabins and provide power for flying; the size and spacing of the propellers and the included angle between the axis of the propellers and the chord line of the wings are defined according to pneumatic requirements, so that the power lift augmentation efficiency is higher; flaps with large elongation and large chord length are arranged on the rear sides of the wings and can deflect at a large angle, so that the voyage and the loading efficiency of the aircraft are improved while larger lift force is provided for the aircraft and the take-off and landing distance is shortened.