The present invention comprises a body consisting of a predetermined shape Engine and is installed on the front of the fuselage The main vertical axis of rotation and which rotates in the central part of the power is transmitted to the body by the power transmission means provided on the rear output side of the engine In the unmanned helicopter main rotor consisting of a rotating fixed to the upper portion of the main vertical axis of rotation, the installation connected to the rear of the power transmission means is a driven gear rotating power is transmitted by said power transmitting means And a driven rotation shaft, which rotation is fixed to the driven gear And rotating the main pulley is installed on the upper portion of the driven shaft A horizontal tail unit, which is installed horizontally with the rear of the body with respect to the main pulley Fixed to the rear end parts of the horizontal tail are installed up and down in the first bent portion, the bent connecting means and which is provided with two pulleys Installing and fixing up the tail portion and extending upward to the rear end of the bent connection means The upstream tail pulley mounting means for the tail rotor is fixed to the end and after installation unit And a pulley for the tail rotor, which is installed to the rear end of the pulley mounting means for the tail rotor And a tail rotor, which is installed to rotate with the one side of the axis of rotation of the pulley for the tail rotor is fixed to the rotating shaft extending to the outside of the pulley extending mounting means for the tail rotor and tail rotor for the pulley And a pulley for the tail rotor rotating with the tail rotor, the first connecting means of the bent, with two pulleys, an unmanned helicopter for drug dispersion consisting of an endless belt, characterized in that for connecting the main pulley.본 발명은 일정 형상으로 이루어진 동체와 상기 동체의 전방에 설치된 엔진과 상기 엔진의 후방 출력측에 설치된 동력전달수단에 의하여 동력 전달되어 동체의 중앙부에서 회전하는 메인 수직회전축과 상기 메인 수직회전축의
