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Goodbye flybar! A gyro helps a scale makeover
A flybar on the main rotor head of a helicopter imparts stability in the rotor head system and helps the main rotor blades change pitch (a sort of power steering mechanism, if you will). Removing the flybar makes it more aerobatic because there is less inertia in the rotor system, which is awesome for 3D flying but more importantly for my purposes, it makes the helicopter look scale. I can remember as a kid watching...
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