Black Stealth 3-Channel R/C Helicopter
The secret of the incredible stability of the Black Stealth 3-Channel R/C Helicopter comes down to the torque control afforded by the dual rotor design. A traditional helicopter with only one rotor generates massive torque when the top blade spins. Normally this would cause the copter to spin out of control, but the rotor on the tail is designed to offset this torque. Therefore piloting a traditional helicopter involves constantly adjusting the tail speed whenever you increase the speed of the top rotor… difficult and time consuming to learn.
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