The primary reduction is directly fixed on the motor. A clutch system let the motor start without charging the rotor.

The power is transmitted from the clutch to the reduction system thru an HTD belt. This power transferring method apears to be the most efficient for its weight.

The power is also transferred to the tail's rotor thru a transmission tree attached to a splitter gear box.

A sprague clutch system enbles the autorotation without overloadind the motor.

Performance and reliability guaranteed!