Tail Rotor Drive
The tail rotor drive system transmits mechanical power from the freewheel to the tail rotor and adjusts the drive speed. The system also contains and monitors the oil for the lubrication of its components and supplies an airflow for the cooling of the engine and transmission oil.
The tail rotor drive system includes the systems that follow:
Shafts
The shaft system transmits shaft power from the freewheel to the tail rotor gearbox and decreases the stress level in the shafts when the tailboom moves during flight. The system also pushes air through the oil cooler for the cooling of the engine and transmission oil. Refer to, Shafts.
Gearbox
The gearbox system transmits shaft power from the segments of the tail rotor driveshaft to the tail rotor and reduces the rotational drive speed. It also contains lubrication oil for the gears and bearings of the tail rotor gearbox. Refer to, Gearbox.
Tail rotor drive indicating
The system of the tail rotor drive indicating monitors the quantity of ferrous metal particles in the lubrication oil of the tail rotor gearbox and gives indications to the pilot and copilot. Refer to, Tail Rotor Drive Indicating.
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