Conflict of interest wind modeling in aircraft response study

The concept of viewing the wind affecting an aircraft as being controlled by an intelligent adversary acting through a wind controller is introduced. The wind controller has objectives which are opposed to those of the aircraft controller. This conflict of interest concept is developed within the framework of linear quadratic differential game theory and applied in a number of related formulations to generate deterministic worst-case wind models for a typical STOL aircraft on the landing approach. The results indicate that the differential games technique encompasses several worst-case concepts and may be tailored to suit a variety of applications, including the generation of wind inputs that attempt to track a specified state trajectory and closed-loop wind controller models for use in aircraft training simulators.