What Is Helicopter Blade Tracking

Helicopter track and balance is the process of adjusting the rotor blades to reduce the aircraft vibration and the track spread of the rotor blades.

What is the purpose of blade tracking?

The purpose of tracking the main rotor blades is to obtain a smooth ride. This is accomplished by adjusting the blade track to reduce vibration. An out-of-track condition will produce a vibration, usually a one-per rev which is felt as a vertical vibration.

What is helicopter blade flapping?

Blade Flapping is the up and down movement of a rotor blade, which, in conjunction with cyclic feathering, causes Dissymmetry of Lift to be eliminated. … The resulting larger angle of attack retains the lift that would have been lost because of the reduced airspeed.