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PERFECT CONTROL
PHOTO BY PETE HALL 135-degree CCPM swashplate Control-system background: there are two basic ways to control the swash-plate movement in our helicopters. The conventional method uses individual servos to control the aileron, elevator and collective-pitch functions. The other uses cyclic collective-pitch mixing (CCPM), which connects each of the three mentioned servos to points 120 degrees apart on the swashplate. To control the aileron function in the conventional system, only the aileron servo is moved, but...
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