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Procedure for utilizing the lift and thrust forces of ornithoptersThis procedure is distinguished by two beating wings which together describe, in space, a succession of interlaced triangles. On these wings, whose incidence varies automatically, identical forces are exerted: simultaneous lift and thrust when they make their descent, which is inclined toward the front of the craft, and lift alone when they make their ascent, which is inclined toward the rear of the craft and follows a slide horizontal movement. A mechanical device makes these movements possible. It includes: two wings with hollow profiles, connected by a framework located above a rigid frame and attached to it by bars with joints. These bars are moved with control rods which gear down the drive force. A mechanism with elastic bands or springs automatically varies the incidence of the wings.
Document ID
19860012063
Document Type
Other - Other
Authors
Bezard, C. (NASA Headquarters Washington, DC United States)
Date Acquired
September 5, 2013
Publication Date
November 1, 1985
Subject Category
AIRCRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number
NASA-TM-77682
NAS 1.15:77682
Funding Number(s)
CONTRACT_GRANT: NASW-4006
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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