COAXIAL TRANSMISSION/CENTER HUB SUB-ASSEMBLY FOR ROTARY ASSEMBLY OF UNMANNED AIRCRAFT
PROBLEM TO BE SOLVED: To rotate upper and lower rotary shafts in the directions opposite to each other by providing upper and lower bevel gears and a UAV power device sub-system for connecting the torque to a counter-rotating rotor with a mechanically engageable input gear. SOLUTION: A single-stage...
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