Share 'Why syma X5 quadcopters use gear wheel to rotate propeller?'
I saw syma X5 quadcopters use extra gear wheel to rotate propeller instead to directly link propeller to motor. I think this technique use for get more flight time. but i don't know exactly.please explain.
this is the motor holder - http://www.symatoystore.com/image/cache/data/X5C/X5C-05-Motor-holder-Red-228x228.jpg
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