FLAPPING MODELPLANE OF NON-STATIONARY TYPE FLAPPING WING

摘要

PROBLEM TO BE SOLVED: To solve the problems of a conventional flapping modelplane that the backbone sections of flapping wing surface are fixed and the difference between the ascent quantity acquired by stroking down of the flapping wings and the descent quantity arising by stroking up is small and then the ascent performance is poor.;SOLUTION: The backbone sections of the flapping wings of this modelplane are non-fixed to minimize the descent loss arising during the stroking up of the flapping wings, by which the ascent performance is tremendously improved. In order to achieve this purpose, the conventional fixed wings, backbones and rear braces are eliminated and in turn, a material, such as a leaf spring, having elasticity is adopted for the backbone section and a main wing trailing edge material provided with a trailing edge height adjusting thread capable of freely setting the trailing edge height of the wings is connected to the rear end of this spring.;COPYRIGHT: (C)2002,JPO