Clearance Omni-Directional Range VOR 
WayMan
JUNE 16, 2025
Altimeter: Shows the altitude of the aircraft above a designated reference point, essential for flight level assignment and terrain clearance. Attitude Indicator (Artificial Horizon): Shows the orientation (pitch and bank) of the aircraft relative to the horizon of the Earth, essential for instrument meteorological conditions flight.
Pilot Institute
MARCH 6, 2025
In contrast to a control tower, an FSS is not responsible for giving instructions or clearances to aircraft. It consists of two independent components VOR and TACAN. This means that the weather provides enough visibility and cloud clearance for pilots to navigate and maintain separation using visual cues.
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