In the early 1960s there still remained in service a few of the A/N radio ranges that in the 1930s first brought electronic navigation to the aviation community, rudimentary devices that gave precise guidance on just four courses to and from the station. But in 1964 the transition was nearly complete to a new system of navigation based mostly on VOR (VHF Omni Range) and DME (Distance Measuring Equipment) stations for overland en route navigation and ILS (Instrument Landing System) for ...

Subscribe to Access this Entire Article

"Printer-friendly" is part of ATW Plus, our online premium membership. Subscribing will provide you access to exclusive news, carefully researched airline financial, fleet and traffic data, plus the option to receive our popular, award-winning print magazine. To learn more, click here. If viewing via ATW Mobile, please login and click "Read web article" to view fully. Questions? ATWPlus@penton.com.

Already registered? here.