The unique pitch adjustment design operates on the principle of twisting the blades through the chromoly alloy steel torsional rod cast inside the blade. The outer end of the torsional rod is firmly anchored inside the outer blade section. The round torsional rod is capable of rotating inside the blade, except for the outer end. The hub ends formed into square shape. These results in substantial savings in fuel, engines wear and noise.
Pilot controls the pitch trough the toggle switch mounted in the cockpit.
Pressing the toggle switch one way sends electric current trough the graphite brushes to the slip rings and finally to the electric motor. Depressing the toggle switch the other way reverses the polarity of current and the rotation of electric motor. The pitch changes operation is similar to the power windows in an automobile. As long as you hold the switch in one direction- the pitch changes in that direction and you observe the result on your RPM meter. Torque from the electric motor is multiplied in a two-stage planetary gear drive, which turn the lead screw.