As GPS becomes more ubiquitous—and as the FAA works to reduce its expenses for things like navigation facilities, airports and controllers—it has long-range plans to unplug hundreds of VOR facilities throughout the U.S. in favor of the satellites. There were 967 U.S. VORs operating in late 2012, and AOPA says the FAA wanted that number to be 500 by January 2020, when ADS-B and the next-generation ATC system are supposed to be in place.

