Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task N. Rotorcraft Fundamentals

AM.II.N.S1

Skill

Locate components of a helicopter rotor system.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 1-41
Chapter 1: Aircraft Structures › Powerplant & Transmission › Turbine Engines
Figure 1-93. The major components of a helicopter are the airframe, fuselage, landing gear, powerplant/transmission, main rotor system, and antitorque system. The gas turbine engine mounted on most helicopters is made up of a compressor, combustion chamber, turbine ... rotor and tail rotor systems through the freewheeling unit which is attached to the accessory gearbox power output gear shaft. The combustion gas is finally expelled through an exhaust outlet. The temperature of gas is measured at different locations…
Aviation Maintenance Technician Handbook - Airframe p. 1-41
Chapter 1: Aircraft Structures › Powerplant & Transmission › Transmission
components of the transmission system are the main rotor transmission, tail rotor drive system, clutch, and freewheeling unit. The freewheeling unit, or autorotative clutch, allows the main rotor transmission to drive the tail rotor drive shaft during autorotation. Helicopter transmissions ... their own oil supply. A sight gauge is provided to check the oil level. Some transmissions have chip detectors located in the sump. These detectors are wired to warning lights located on the pilot’s instrument panel that illuminate…
Helicopter Flying Handbook p. 3-3
Chapter 3: Helicopter Flight Controls › Antitorque Pedals
Pedals The antitorque pedals, located on the cabin floor by the pilot’s feet, control the pitch and therefore the thrust of the tail rotor blades or other antitorque system. See Chapter 5, Helicopter Components, Sections, and Systems…