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Helicopter components

Helicopter components






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    Helicopter components Helicopter components Presentation Transcript

    • “Knowing how the components and systems work on the helicopter enables the pilot to more easily recognize malfunctions and possible emergency situations. Understanding the relationship of these systems allows the pilot to make an informed decision and take the appropriate corrective action should a problem arise.” Helicopter Flying Handbook 2012
    • Fuselage- outer core of the airframe. This is the aircraft’s main body that houses the cabin. This also houses the engine, transmission, avionics, flight controls and the powerplant. Helicopter Flying Handbook 2012
    • Main rotor system- the rotating part of the helicopter that generates lift. It consists of a mast, hub and rotor blades. The mast is a hollow shaft that extends upward to the hub which the rotor blades are attached to. Helicopter Flying Handbook 2012
    • Swash plate assembly- “The purpose of the swash plate is to convert stationary control inputs from the pilot into rotating inputs which can be connected to the rotor blades or control surfaces. It consists of two main parts, stationary swash plate and rotating swash plate. “ Helicopter Flying Handbook 2012
    • Freewheeling unit- this unit automatically disengages the engine from the rotor system when the engine revolutions per minute (rpm) are less than main rotor rmp. Doing this, it allows the main rotor and the tail rotor to continue to turn normally inflight speeds. Helicopter Flying Handbook 2012
    • Antitorque system- a helicopter with a single, main rotor system require a separate system. This is through a variable pitch, antitorque rotor or tail rotor. Helicopter Flying Handbook 2012
    • ENGINES Reciprocating engine- also called piston engines, used in smaller helicopters because they are simple and inexpensive to operate Turbine engine- more powerful and widely used in helicopters, they produce more power but are more expensive to operate Helicopter Flying Handbook 2012
    • TRANSMISSION SYSTEM “The transmission system transfers power from the engine to the main rotor, tail rotor, and other accessories during normal flight control. The main 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 Flying Handbook 2012