The development of the Civil Aeronautics authority instrument landing system at Indianapolis

THE most important problem in flying today is that of landing a plane under adverse weather conditions. A modern transport plane can take off and fly to the vicinity of its destination through nearly any type of weather by means of modern methods of air navigation. The use of the radio range together with flight and navigation instruments has made this possible. However, it is extremely hazardous to land aircraft with standard equipment under conditions of low ceiling and poor visibility. This limitation is the reason for the majority of flight cancellations of scheduled air transport.