Single-power horizontal tractor type high-speed high-mobility helicopter

Abstract

An embodiment of the invention discloses a helicopter. The helicopter is characterized in that 1), the helicopter is provided with a single engine, power for propulsion devices is outputted by the central engine in a mechanical transmission manner; 2), a tail rotor is omitted, and the variable-pitch propeller horizontal propulsion devices are mounted at the outer ends of stub wings; 3), the propulsion devices on two sides of the helicopter realize same-direction propulsion so that the helicopter flies at a high speed, and the propulsion devices realize differential propulsion in reverse directions so that the heading direction of the helicopter deflects; 4), the lift force compensating stub wings are arranged on two sides of a helicopter body to increase lift force; 5), broad ailerons are disposed at the rear edges of the stub wings, and rolling mobility is improved; and 6), the helicopter is provided with empennages, and pitching and yawing mobility is enhanced. The high-speed helicopter is further characterized by comprising the streamline helicopter body with a single tail boom, a main rotor disposed on the upper side of the helicopter body, the lift force stub wings arranged on the two sides of the helicopter body, the propeller horizontal propulsion devices mounted at the outer ends of the stub wings, horizontal stabilizers positioned out of slip flow of a rear rotor of the helicopter body and a single vertical stabilizer, wherein elevators are arranged at the rear edges of the horizontal stabilizers, and a rudder is disposed at the rear edge of the vertical stabilizer.

Description

Technical field [0001] The invention relates to a horizontally-drawing high-speed helicopter, which belongs to the field of aviation aircraft, in particular to a high-speed and efficient compound helicopter layout. Background technique [0002] The compound helicopter has both the ability of hovering and high-speed flight. For conventional helicopters, due to the asymmetric airflow of the rotor in the forward flight working environment, the maximum forward speed is limited by the compressibility of the forward blade and the airflow separation of the backward blade. The maximum cruising speed is usually around 300km / h; The aircraft cannot complete hovering and low-speed flight. The hybrid helicopter combines the flying characteristics of a helicopter and a fixed-wing aircraft, thus possessing both capabilities. Its application prospects are very broad and economic prospects are good. [0003] There are roughly two types of hybrid helicopters at home and abroad. First, the streaml...

AI Technical Summary

Problems solved by technology

First, the use of a streamlined fuselage to pursue low resistance, coupled with the power propulsion device in the forward direction, requires relatively high fuselage size and overall shape, and its loading capacity is not strong

Second, adopt the conventional helicopter layout plus lift winglets, unload the rotor, and add power propulsion device; the maneuverability is insufficient, and the weight of the double vertical tail structure is heavy

In general, high-speed performance and maneuverability cannot be achieved at the same time

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