The book is aimed at maintenance technicians working with ILS as well as planners of navigation aids and for flight inspection crew. It is a necessary prerequisite for further equipment course or training course in computer ILS simulations. After studying this book the reader will be able to understand the basic ILS principles for localiser and glide path systems, understand relevant ICAO specification and be able to do basic fault finding and call for expert assistance in a qualified way. The reader will understand the functions and limitations of the airborne equipment as well as flight inspection reports and the meaning of the reported values. The most important features of the localiser and glide path will be discussed, and the reader will be soon be ready to receive the On-the-Job and equipment specific training required to perform independent maintenance work on ILS systems.

Issues for include Annual air transport progress issue.

When darkness falls, storms rage, fog settles, or lights fail, pilots are forced to make "instrument landings," relying on technology and training to guide them through typically the most dangerous part of any flight. In this original study, Erik M. Conway recounts one of the most important stories in aviation history: the evolution of aircraft landing aids that make landing safe and routine in almost all weather conditions. Discussing technologies such as the Loth leader-cable system, the American National Bureau of Standards system, and, its descendants, the Instrument Landing System, the MIT-Army-Sperry Gyroscope microwave blind landing system, and the MIT Radiation Lab's radar-based Ground Controlled Approach system, Conway interweaves technological change, training innovation, and pilots' experiences to examine the evolution of blind landing technologies. He shows how systems originally intended to produce routine, all-weather blind landings gradually developed into routine instrument-guided approaches. Even so, after two decades of development and experience, pilots still did not want to place the most critical phase of flight, the landing, entirely in technology's invisible hand. By the end of World War II, the very concept of landing blind therefore had disappeared from the trade literature, a victim of human limitations.