Patent ID: 6638017
Filing Date: 2003-10-28
Classification: A63H,B64C,F02B

Abstract:
A control device for use in unmanned model aircraft for a constant speed propeller comprising:an unmanned model aircraft propulsion engine coupled to said constant speed propeller, wherein a rotational speed of said unmanned model aircraft propulsion engine is regulated through an automatic change of an angle of attack of said constant speed propeller and at least one of a manual and an automatic adjustment of a throttle; an unmanned model aircraft power transmission positively coupled to said unmanned model aircraft propulsion engine; an electric servomotor device, wherein said electric servomotor device is positively coupled to said constant speed propeller through said unmanned model aircraft power transmission, and an unmanned model aircraft controller, said controller controlling said electric servomotor device, said angle of attack of said constant speed propeller being adjusted by said unmanned model aircraft power transmission from said electric servomotor device and said unmanned model aircraft propulsion engine, wherein said adjustment of said angle of attack being at least one of a manual adjustment by an operator and an automatic adjustment by said unmanned model aircraft controller.