The helicopter is a transportation-drive rotor and has the ability to land and fly vertically. Helicopters also can move forward and backward in the air, other than that the helicopter has the ability to float in the air. Because of its ability to take advantage of many of these helicopters for various purposes.

Helicopters have the power to move from the spinning rotor. Helicopter rotor airfoil has a shape similar to the wing on an airplane. When the rotor rotates the air will move on the surface of the rotor resulting in a low pressure above the rotor of an under the rotor so the helicopter lifted upwards.

Parts of this part of the main helicopter

Rotor blades (rotor blades) are an airfoil shape that the angle can be changed and used to generate lift and thrust. Rotor blade attached to the main rotor with to help the rotor hub.

Tail section is located on the rear rotor helicopter, the rotor is a rotor that rotates in small vertical. Serves to deflect the rotor helicopter toward cold. In addition to the tail rotor also acts to counter the torque generated by the (action and reaction) when the main rotor spins.

SWASH plate has two main parts namely the main one fixed plate in blue and red plates spinning. SWASH this plate that serves to regulate the movement of aircraft angle of attack by regulating the air in the rotor blade.