Tremendous growth has been projected in air transportation for both passenger and cargo markets. The projected growth is so great in fact that a total system concept approach is necessary not only to solve the problems of today, but to provide solutions which satisfy the demands of tomorrow. In using the systems approach it is necessary to determine the significant parameters in the description of the operations, interrelationships, and environment of the airport/aircraft system. This paper discusses the approach being utilized in evaluating airport/aircraft compatibility which is one element of the total system concept. Both short- and long-range considerations are presented. Market data are presented to illustrate the projected growth trends and numbers of aircraft. Long range planning factors such as requirements for wider and stronger runways are discussed. A method is presented for establishing interface requirements for flotation, ground service equipment, passenger and cargo loading, community noise, and maintenance facilities between future transport aircraft and the airport. A total transportation system on the scale projected for the 1980's has implications far beyond the vehicles themselves. Consequently, it is mandatory that communication and coordination between all elements of the air transport industry be continually improved to effect the integration necessary to achieve such expansion.