Flapping wing aircraft

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and beating wing sustained

Patent

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Details

Other Related Categories

244 22, 244 64, B64C 3302

Type

Patent

Status

active

Patent number

040531228

Description

ABSTRACT:
A flapping wire aircraft capable of being operated by manpower comprising double wings acting in a countermovement is provided with a toggle lever system on each side for separate actuating the right-hand and left-hand wings respectively to improve steering possibilities; said toggle lever systems permitting increased wing flapping speeds. The wings are at least partially elastic and of a compact shape; according to a preferred embodiment circular-ellipticaly, rearward-outwardly extending wing spars are in an approximately parallel arrangement, the first of which following the front/side edge of the wing; these on substantially in flight direction arranged bearing spars attached wing spars guide sharing air portions to the rear, resulting in enhanced propulsion. A toggle lever system comprising parallel guides with an elastic connection such as a leaf spring results in an improved power transmission to a connecting rod of the wings; a spring member between the lever system and a fixed point on the frame forces the wings into volplane position when intentionally acting power is omitted.

REFERENCES:
patent: 1364174 (1921-01-01), Bird
patent: 1450480 (1923-04-01), Buck

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