Sorry if I bother with this question, but I think it is of a very big importance for realistic flight siming!I expect Your comments

The rudder pedals are the primary directional controls while taxiing. with the pedals may be accomplished through the forces of airflow or propeller slipstream acting on the rudder surface, or through a mechanical linkage to the steerable nose wheel or tail wheel.Large aircraft, with a need for more positive control, utilize a separate power source for nosewheel steering. Even though nose wheel steering system units of large aircraft differ in their construction features, basically all of them work in approximately the same manner and require: (1) a cockpit control, such as a wheel, handle, lever, or switch to allow for starting and stopping the swiveling movement of the nose wheel and to control the action of the system; (2) mechanical, electrical, or hydraulic connections for transmitting cockpit control movements to a steering control unit on the nose wheel (3) a control unit, which is usually a metering or control valve; (4) a source of power, which is, in most instances, the airplane's hydraulic system.------------------- Life Cover| Life Insurance