Descent Instrument Landing System Threshold 
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
OCTOBER 17, 2024
Using the VASI is crucial as it gives you safe obstruction clearance within 10 degrees of either side of the runway centerline and around four nautical miles from the runway threshold. nautical miles from the runway threshold. VASI systems also are typically cheaper to install and maintain than more advanced systems like PAPI.
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