How does a tri rotor work? You'll notice in every photo there is a special magic tail servo. That servo aims the tail thrust left & right to produce yaw. The pros call it "thrust vectoring". Thrust vectoring is more efficient than using counter rotating blades because the servo weighs less than a full power plant & each power plant runs at a more efficient RPM.
Tri rotors handle the same as quad rotors. This one flies 10% longer than a quad rotor using the same parts.
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