Fixed-wing aircraft realizing vertical take-off and landing

Abstract

The invention provides a fixed-wing aircraft realizing vertical take-off and landing. The fixed-wing aircraft comprises an aircraft body, a tail and power devices provided with tilting mechanisms, wherein each power device provided with the tilting mechanism comprises a fixed-pitch propeller, an engine, an engine cabin, a slipstream rudder, a wing, a tilting wing and a steering engine, the engine is mounted in the engine cabin, the fixed-pitch propeller is connected with an output shaft of the engine, one end of the tilting wing is fixedly connected onto the engine cabin, the other end is rotationally mounted onto the wing, the slipstream rudder is movably connected onto the tilting wing, and the steering engine drives the slipstream rudder; the power devices provided with the tilting mechanisms are symmetrically arranged on two sides of the aircraft body, the wings are horizontally arranged, a through hole is formed in the head of the aircraft body, and a ducted fan is arranged in the through hole. The size of the aircraft rotor wings and the aircraft is smaller, a complex automatic tilting device and a periodic pitch-variable device are omitted, the structure is simple, the trim difficulty and flight control system complexity are reduced, the system reliability is high, and the cost is low.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a vertical take-off and landing fixed-wing aircraft. Background technique [0002] Since the 21st century, more and more aircraft developers have turned their attention to fixed-wing aircraft that take off and land vertically. This type of aircraft has similar functions to helicopters and can take off and land vertically without using a runway. The difference is that this This type of aircraft can accelerate from a hovering state to level flight through power tilt and transition to a fixed-wing flight mode. [0003] At present, practical vertical take-off and landing fixed-wing aircraft are mainly AV-8 Harrier fighter jet, V-22 Osprey tilt-rotor aircraft, and F-35 fighter jet. The AV-8 Harrier fighter uses a Pegasus engine, and on the basis of a jet engine, it adopts a thrust reversing scheme with a rotatable exhaust nozzle. In actual use, this type of aircraft often has reliability prob...

AI Technical Summary

Problems solved by technology

[0004] However, since the V-22 Osprey uses two helicopter rotors, in the vertical take-off and landing mode, the rotors need an automatic tilter to control the stability of the attitude of the aircraft, which increases the difficulty of control, and the blades use a cyclic pitch change device, which also increases In addition, in the vertical take-off and landing mode of the Osprey, the rotor slipstream blows directly on the wing surface, causing a large loss of pressure differential resistance and forcing the wing to increase the structural strength, which in turn increases the structural weight of the aircraft and reduces the aircraft performance

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