Helicopter: apparatus propelled and balanced in the air by two large propellers.
Rotor blade: part of the main apparatus that propels and lifts the helicopter.
Rotor hub: central part of the main apparatus that propels and lifts the helicopter.
Swash plane: platform that change position and support.
Fight deck: cubicle reserved for the operation of the apparatus.
Control stick: control stick of a helicopter.
Rudder pedal: foot-operated command of the rudder.
Direction synchronizing cable: set of braided iron wires used to operate the apparatus.
Skid: supportive metal device.
Fuel intake: opening in the side wall used for filing the gas tank.
Tail: tapering rear part of the fuselage.
Horizontal stabilizer: device that automatically corrects errors and deviations, and stabilizes the helicopter.
Fin: device that prevent drift.
Anti-torque trail rotor: auxiliary apparatus that assures lift and propulsion of the helicopter.