Helicopter Principle

The principle of helicopter is that the engine drives the rotor to provide lift to lift the helicopter in the air, and at the same time, it outputs power to the small propeller at the tail, the gyroscope on board can detect the helicopter's rotary angle and feed back to the tail rotor, and by adjusting the pitch of the small propeller, it can cancel out the reaction force generated by the large propeller at different speeds.

The helicopter's maximum speed can reach more than 300km/h, with a dive limit speed of nearly 400km/h, a practical ceiling of up to 6,000 meters, and a general range of 600-800km. Carrying in-flight and external fuel tank transit range of up to 2000km or more.

According to the different needs of the helicopter has a different take-off weight, the world's largest heavy helicopter is currently in use in Russia's Mi-26. current practical application is mechanically driven single-rotor helicopters and dual-rotor helicopters, which is the single-rotor helicopter with the largest number of helicopters.

What are the applications of helicopters

In the military has been widely used in ground attack, landing, weapons delivery, logistical support, battlefield rescue, reconnaissance patrols, command and control, communications, anti-submarine mine clearance, electronic countermeasures.

In civil applications, it is used in short-distance transportation, medical care, disaster relief, emergency rescue, lifting equipment, geological exploration, forest protection and firefighting, and aerial photography. The transportation of personnel and materials between oil wells and bases at sea is an important aspect of civil use.