During the past ten years, air navigation has made great strides. With an introduction of Global Positioning System (GPS), the Air Traffic Control (ATC) system has seen a massive leap forward in technology. There has been talk of eliminating the current en route and approach navigation system utilizing VORs, NDBs and ILSs. That approach may have been premature. The new projected target date for initiating Phase I of the Wide Area Augmentation System (WAAS) is September 2000 (Eldredge, 1999). This is an extension of 14 months from the original target date.
Scholarly Commons Citation
Matteson, R. C.
Is Free Flight a Reality or Myth?.
Journal of Aviation/Aerospace Education & Research, 9(1).