Sounds are generated by an aerial vehicle during operation. For example, the motors and propellers of an aerial vehicle generate sounds during operation. Disclosed are systems, methods, and apparatus for actively adjusting the position and/or configuration of one or more propeller blades of a propulsion mechanism to generate different sounds and/or lifting forces from the propulsion mechanism.
AERIAL VEHICLE PROPULSION MECHANISM WITH COAXIALLY ALIGNED AND INDEPENDENTLY ROTATABLE PROPELLERS
2017-09-28
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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