The human factor remains one of the most important problems affecting flight safety. On the other hand, however, the complexity of onboard control and navigational systems grows constantly. As such, a great deal of research has gone into creating onboard systems which would interact with pilots and assist them in order to avoid flight accidents.This book provides unique insights into the building of such a system, using the so-called confidential approach for the analysis and synthesis of the dynamical systems, operating under the influence of various uncontrollable factors. As a result, the book details an intellectual expert system able to support the crew during standard flight modes. This system is able to detect a hazard in real-time mode, identify its source, and provide recommendations for the pilots. The book also investigates the confidence model, offering formulas and examples of expert systems’ functioning.