Patent ID: 6497600
Filing Date: 2002-12-24
Classification: A63H,B64C,Y02T

Abstract:
An automatic pilot system that can be used in combination with an already existing model airplane, which has a fixed wing, fixed vertical and horizontal stabilizers, as well as a fixed rudder and fixed elevator, thus lacking any controllable elements during its flight; the automatic pilot system comprises one or a combination of the following control elements, which are externally attached to said model airplane to provide means for controlling and stabilizing said model airplane;(a) a flexible rudder control element; (b) two flexible elevator control elements; (c) two flexible wing tip control elements whereinsaid flexible control elements are made from a flexible plastic sheet; each of said flexible control elements being substantially thin and flat and so flexible that its relative angle to the body of said model airplane changes continuously and reversibly as the air speed of said model airplane changes; said five flexible control elements of the proposed automatic pilot system allow for the continuous automatic control of one or a simultaneous combination of the following angles; the pitch angle, the yaw angle and the roll angle of the model airplane thereby attaining a stable flight; said flexible control elements pilot said model airplane on a circular gliding flight path following a high speed take-off in a straight line.