Aviation mechanic is one of the representatives of many specialties full of flight test characteristics in aviation industry flight test center. The emergence and application of aerodynamics represents the leap-forward development of new transport aircraft and helicopters in China, and also represents the continuous improvement of flight test level in China.

For early transport aircraft and helicopters, mechanical operation relied on manpower to control the flight control surface through steel cables or pull rods. In the 1930s, when large multi-engine aircraft appeared, the operation of the aircraft became difficult. The profession of aerial mechanic also came into being.

An air mechanic is a member who is responsible for managing complex systems on an airplane. He is mainly responsible for operating and monitoring the engine, hydraulic, fuel, electrical and environmental control systems and navigation attitude in strict accordance with the captain's instructions. Usually, the air mechanic is located in the seat behind the pilot in the cockpit, monitoring the auxiliary control device and instrument panel. At the same time, in addition to monitoring equipment, mechanics have to participate in the flight. In the early days, due to the bumpy take-off and landing, the throttle of the plane was loose. At this time, the mechanic had to hold the throttle lever steady. So some people say that the air mechanic is the nanny of the plane.