Quote:
Originally Posted by Botnst
I assume that counter-rotating props means that it can turn either direction with equal rapidity because the gyroscopic effect is neutralized. I'll bet that sucker has some harmonics that would dislodge fillings.
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Yep. Watch the video I posted where it spins in place in both directions. And actually no its actually quieter then a conventional rotor set-up. The sound from one set of rotors cancels out the sound from the other. (Think about how a muffler works to cancel sound out)
http://en.wikipedia.org/wiki/Coaxial_rotor