Instrument Landing System Threshold VOR 
Pilot Institute
JANUARY 14, 2025
So, how do pilots manage to land their aircraft safely and accurately without even being able to see where theyre going? The ILS (Instrument Landing System) uses radio signals to help pilots align the aircraft accurately on their approach to a runway. Lets learn more about this system! What Is an ILS Approach?
Pilot Institute
FEBRUARY 15, 2025
Before RNAV, pilots had to rely on radios (NAVAIDs) and antennas on the ground such as VORs (Very High-Frequency Omnidirectional Range) and NDBs (Non-Directional Beacons). But these systems had some problems, like not being able to work over water, or if there was something in the way of the transmitter and the aircrafts receiver.
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