This chapter discusses the possibility to model the control behaviour of a human pilot by fuzzy logic control. For this investigation a special flight task is considered, the ILS tracking task, and an evaluation pilot has to perform this task in a ground based flight simulator. During the ILS tracking task all necessary flight data are stored in a database and additionally the pilot commands are recorded. The development of the described fuzzy controller (the fuzzy pilot) is based on cognitive analysis by evaluating the recorded flight data with the associated pilot comments. Finally the fuzzy pilot is compared with the human pilot and it can be verified that the fuzzy pilot and the human pilot are based on the same control concept.