ABSTRACT
However, during its operational use (during the flight) disturbance from signals from both the weather conditions (wind, pressure variation) and resulting from the airplanes operation (tight turns, firing rockets, the acquisition of air stream from other aircraft in group fly) become high power, and thus the importance of the quality of the engine. Disturbances during the flight are the input signal for the object (engine). During the ground tests carried out on the engine disturbance signals have low power and therefore have little effect on engine performance. [1, 7, 9, 10]
So there is a situation that the turbojet engine adjusted correctly during ground tests may be inappropriately prepared to work during the flight (in a variable environment and the difficult to predict disturbances) which may have a significant impact on the quality of engine operation and thus the safety of the flight. Hence the need for new methods to assess control quality of air turbine jet engine based on tests ground in such a way as to provide a high quality of control during flight.
