Aeroplane is slowly becoming a common mode of transportation after the global economic reforms. The main components of an aeroplane are engine, propeller, fuselage, wings, three controls, flaps and tricycle under-carriage. Engine provides proper propelling force. There exist four types of engines. They are piston engine, rocket, turbojet and turbofan. A piston engine is powered by gasoline fed reciprocating engine which is driven by propeller. Propeller consists of two or more blades which are driven round in a circular path. Fuselage is the main part of the aircraft where power plant, fuel, cockpit, passenger space, cargo etc. are accommodated. Wings are used to support the machine in the air when the engine has given it the necessary forward speed. Three controls namely elevator, rudder and aileron are required for the fine controlling of the aeroplane. Elevator and rudder are also known as empennagewhich are located at the tail end of the fuselage. Aileron is a binged flap which is fixed in the trailing edge of the wing near the wing tip. Pilot can easily operate these control units from his cabin. Flaps are used to increase the lift on aerofoils. Tricycle under carriage supports the aircraft whenever it is in contact with the ground.
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