Dual variable united wing aircraft with variable wings

Abstract

The invention discloses a dual variable united wing aircraft with variable wings; the number of the front wings and the number of the rear wings are both two, the front ends of the two front wings are hinged to each other to form a front intersection point, and the rear ends of the two rear wings are hinged to each other to form a rear intersection point. The middle of each front wing is hinged to the middle of the corresponding rear wing to form a left intersection point and a right intersection point, telescopic wings are arranged in the fuselage, each telescopic wing is provided with two telescopic ends, one telescopic end of each telescopic wing is connected with the left intersection point, and the other telescopic end of each telescopic wing is connected with the right intersection point. The front intersection point and the rear intersection point are slidably connected to the fuselage. The aircraft has the advantages that the wings can well adapt to different flight speeds, redundant lift force is reduced as much as possible, the weight of a mechanical structure is reduced, the lift force for slow takeoff is increased, resistance for high-speed flight is reduced, the gravity center and the lift force center of the aircraft are not changed when the sweep angles of the wings are changed, flight control difficulty is reduced, the structural weight of the aircraft is reduced, and aerodynamic layout is improved.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to a double variable wing aircraft with variable wings. Background technique [0002] The current fixed-wing aircraft mainly provide flight lift by the wings, and the lift can be improved by means of optimizing the airfoil, changing the airfoil, and increasing the wing area. [0003] However, the lift of the wing changes greatly with the change of the flight speed. The lift of the wing per unit area is proportional to the square of the flight speed. Therefore, the same aircraft, the lift provided by the wing at low speed and high speed and the cruising speed of most fixed-wing aircraft is much higher than the take-off and roll speed, such a speed difference will cause a large difference in the lift of the wings of the aircraft in different flight states, that is to say, the lift provided by the wings The lift will come and go. [0004] For example, when an aircraft takes off at a...

AI Technical Summary

Problems solved by technology

[0011] For this reason, the present invention provides a kind of double variable wing aircraft with variable wing, to solve the adaptation problem of the wing in the prior art to the aircraft at different speeds, so that the wing can provide a greater Lift, while avoiding excess lift at high speeds and reducing drag at high speeds

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