Study on equivalent damping calculation for hydraulic damper of helicopter rotor;

The manufacture of a new type of underwater exit light of helicopter;

Navigation systems of modern helicopters;

Study on Simulation and Evaluation of Helicopters' Flying Performance and Reliability;

Anumerical method usingthe three-dimensional Euler equations is presented to predict the rotor in-ducedvelocity flowfield of a real helicopter and to provide a calculated method on the downwash flowfield forrocket or missile emission on helicopters.

When ship-borne anti-sub helicopters carry out anti-sub search missions,because of need to fly at very low altitude,their mobility is affected,so they are prone to various weapons,especial- ly missiles.

The particularity and practicality of harmony operations of close-coupling multiple helicopters indicate that the researches on it are urgent and necessary.

Helicopter is a complex system and the harmony operations of close-coupling multiple helicopters have their particularities.

A new control method of a 3-DOF-helicopter device based on digital control;

Review on using infrared thermal imaging technique on helicopters to inspect equipments of HV transmission lines;

Aiming for the high and new investigating technology methods about helicopter surveying super voltage transmission lines,this article analyses the benefits and methods of helicopter surveying and finds some relative equipment defects by airborne surveying.