Four-engine aircraft

Abstract

The invention relates to a four-engine aircraft, which belongs to the technical field of aircrafts. The four-engine aircraft comprises an aircraft body, a left composite wing, a right composite wing, a tail wing and a landing gear. An operating system and airborne equipment are mounted in the aircraft body. The left composite wing and the right composite wing have same structures and are symmetrically mounted on the left and right sides of the aircraft body. The tail wing is positioned at the tail part of the aircraft body; and the tail wing comprises a horizontal tail wing and a vertical tail wing. The landing gear adopts a wheel type structure. The left composite wing comprises a front wing, a wing shaft, a rear outer wing, a rear inner wing, an outer rotor, an inner rotor, an outer engine and an inner engine. As four rotors are independently controlled and matched with four movable wings, the aircraft is flexible; and as all rotors are mounted under the wings, flow fields of the upper and lower surfaces of the wings can be improved during the rotating of the rotors; therefore, downwash airflow is increased, airflow separation of the upper surfaces of the wings is delayed, the efficiency is increased and the lift coefficient is greatly increased.

Description

technical field [0001] A four-engine aircraft belongs to the technical field of aircraft, in particular to a four-engine aircraft. Background technique [0002] Traditional aircraft need a runway to take off and land, and cannot take off and land vertically. Traditional helicopters have high energy consumption, low efficiency, and low safety and stability. Contents of the invention [0003] The purpose of the invention is to overcome the above-mentioned shortcomings of traditional airplanes and helicopters, and invent a highly efficient, safe and stable four-engine aircraft that is convenient for short-distance take-off and landing and vertical take-off and landing. [0004] A four-engine aircraft includes a fuselage, a left compound wing, a right compound wing, an empennage and a landing gear. The fuselage is equipped with a control system and airborne equipment. The left compound wing and the right compound wing have the same structure, and they are symmetrically inst...

AI Technical Summary

Problems solved by technology

[0002] Traditional aircraft need a runway to take off and land, cannot take off and land vertically, and are not convenient for ultra-low speed or hovering flight, and it is also difficult to take off and land in a short distance

Traditional helicopters have high energy consumption, low efficiency, low safety and stability

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