Helicopter is a rotary wing aircraft that can make vertical takeoff and landing. In Greek, the root of the name “heliko pteron” means moving wings. In 1907, Fran ex blew Paul Cornu’s first motorized helicopter.
Working Principle Helicopters can take off and land vertically and hold on to the air. The principles of flying helicopters and planes are actually the same. The aircraft is moved in the air to achieve holding force on the aircraft. However, the wing is connected to the aircraft body is a constant structure. But in the helicopters, the wing is not fixed, it is hare ketidir. In other words, in order to obtain the carrying force in helicopters, rotating wings or propellers are used.
The propeller consists of two or more pallets. The profile of the propeller palette is the same as the profile of the aircraft wing. The Heli Copter engine rotates the palleri. Because the pals move in the air, low pressure occurs on the upper surfaces and high pressure on the lower surfaces. This pressure difference creates the bearing force. With the increase in the number of revolutions and the angle of attack of the pals (angle of the air to the air), the magnitude of this conveying force also increases. If not, it decreases. If the conveying force is equal to the weight of the helicopter, the helicopter is fixed in the air. When it is large, it rises vertically. When less, it decreases vertically.
When the tilting plane of the propeller is tilted, that is, when the direction of the bearing force of the propeller is changed, the helicopter moves back and forth. This allows the helicopter to move in the air.
Because the propeller rotates continuously (due to the moment he creates on the body), he tries to turn the helicopter’s body. To prevent this, a smaller propeller is used in the tail of the helicopter. The propeller in the tail dampens the torque on the body. In addition, the rotation of the body can be achieved by changing the amount of damping.
Similar Articles :