Wing-changeable airplane

Abstract

The invention relates to a wing-changeable airplane, belonging to the technical field of spacecraft instrumentation. The wing-changeable airplane comprises an upper wing, a lower wing, a tail fin, a power device, an undercarriage and an airplane body, wherein the left section of the upper wing, the left section of the lower wing and a left transmission mechanism form a left wing assembly; the right section of the upper wing, the right section of the lower wing and a right transmission mechanism form a right wing assembly; the left wing assembly and the right wing assembly are the same in structure and are symmetrically distributed at the left side and the right side of the airplane body; a middle axle rotates to drive a left rotating arm and a right rotating arm to rotate simultaneously to control the upper wing and the lower wing to be closed or opened under the control of a control system, when the upper wing and the lower wing are closed, the airplane is a monoplane; and when the upper wing and the lower wing are opened, the airplane is changed to be a biplane; the monoplane mode is suitable for cruising and has high efficiency; and the biplane mode is suitable for short-distance taking off and landing or ultra-low-speed flight. The wing-changeable airplane is suitable for low-speed flight, is suitable for being used as a training airplane, and has multiple purposes, and the cost is also saved.

Description

technical field [0001] A variable-wing aircraft belongs to the technical field of aviation aircraft, and in particular relates to an aircraft. Background technique [0002] It is difficult for traditional monoplanes to achieve short-distance takeoff and landing, and the critical stall angle of the wing is small, so it is easy to stall and is not suitable for flying at high angles of attack; traditional biplanes have low wing efficiency and poor stability when cruising; traditional trainers Airplanes are either monoplane or biplane, and two different airplanes are needed to teach students who fly monoplanes and biplanes, and the teaching cost is high. Contents of the invention [0003] The purpose of the invention is to overcome the above-mentioned shortcomings of traditional monoplanes, traditional biplanes, especially traditional trainers, and invent a variable-wing aircraft that can take off and land in short distances, has high cruise efficiency, and is more suitable as...

AI Technical Summary

Problems solved by technology

[0002] Traditional monoplanes are difficult to achieve short-distance take-off and landing, and the critical stall angle of the wing is small, so it is easy to stall and is not suitable for flying at high angles of attack; traditional biplanes have low wing efficiency and poor stability when cruising; traditional trainers The aircraft is either a monoplane or a biplane, and two different aircraft are required to teach students to fly a monoplane and a biplane, and the teaching cost is high

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