Incongruous five-propeller helicopter

Abstract

An incongruous five-propeller helicopter is characterized in that a central propeller is arranged at the center of an equilateral triangle of the projection of the connecting line of the rotating centers of the other three same fixed-pitch propellers on the horizontal plane, the center is on the gravity center of the helicopter body or slightly behind the gravity center, one height of the triangleis overlapped with the longitudinal axis of the helicopter body, a tail fixed-pitch propeller is arranged at the tail of the helicopter body, the rotating surface of the tail fixed-pitch propeller isperpendicular to or approximately perpendicular to the rotating surface of the central propeller and is parallel to the longitudinal axis of the helicopter body, an undercarriage is arranged below the helicopter body and close to the gravity center, three same engines are arranged to drive the fixed-pitch propellers at the vertex angle of the triangle, another engine is arranged to drive the central fixed-pitch propeller, another engine is arranged to drive the tail fixed-pitch propeller, the central fixed-pitch propeller provides most of lift force and forward flying power, the tail fixed-pitch propeller controls the course, and a gasoline-electric hybrid or full-fuel driving method is adopted, so that the helicopter has the advantages of long endurance time and large load capacity, andis applied to transportation, aerial photography, agricultural operation and the like.

Description

technical field [0001] The invention relates to an incomplete five-propeller helicopter capable of vertical lifting, hovering, front-back, left-right, and left-right flight independent of airports. Background technique [0002] At present, the known successful method of helicopters that can realize vertical lift, front and rear, left and right flight, and hovering has four-screw helicopters. The four-screw helicopters have the advantages of simple structure and high reliability, but the four-screw helicopters use four identical, Smaller fixed-pitch propellers have a small load capacity and poor wind resistance. Contents of the invention [0003] In order to improve the load capacity and wind resistance of the four-screw helicopter, the invention provides a partial five-screw helicopter to achieve this goal. [0004] The technical scheme that the present invention solves its technical problem adopts by two kinds of modes: the first kind is, the nose of fuselage, left rear ...

AI Technical Summary

Problems solved by technology

[0002] At present, the known successful method of helicopters that can realize vertical lift, front and rear, left and right flight, and hovering has four-screw helicopters. The four-screw helicopters have the advantages of simple structure and high reliability, but the four-screw helicopters use four completely identical, pitch Smaller fixed-pitch propellers with less load capacity and less wind resistance

Images