Pilots flying Garmin G1000-equipped aircraft, even those with WAAS, must maintain proficiency in VOR navigation as a critical backup for potential GPS outages. The Minimum Operational Network (MON) ...
Area navigation using GPS has been around (for us) for about 30 years. Before that we did mostly the same thing using LORAN for a while. But, the National Airspace System was designed around VHF Omni- ...