This is a revised textbook for use in the Air Force ROTC training program. The main theme of the book is concerned with the kinds of civil aviation facilities and many intricacies involved in their use. The first chapter traces the development of civil aviation and the formation of organizations to control aviation systems. The second chapter describes varieties of aviation for which the term "general aviation" is used. This includes brief descriptions of agricultural, business, instructional, recreational, air taxi service, and civil air patrol aviation systems. The third chapter delves into the problems related to the management of aviation facilities. The fourth chapter presents a discussion of the construction and operation of airports. Finally, the last chapter deals with the development and role of air traffic control. (PS)