Air Traffic Control True Airspeed Visual Flight Rules 
Pilot Institute
FEBRUARY 28, 2025
Lets say youre cruising at 10,000 feet when Air Traffic Control (ATC) instructs you to “squawk 1200.” Mode A sends squawk codes, Mode C adds altitude, and Mode S transmits detailed flight data. The transponder is the airborne portion of the Air Traffic Control Radar Beacon System (ATCRBS).
Pilot Institute
NOVEMBER 5, 2024
An IFR flight plan is similar to a roadmap through the clouds. The flight plan informs the Air Traffic Control (ATC) of your planned course, aircraft capability, and contingency plan. Unlike Visual Flight Rules (VFR), filing an IFR flight plan is mandatory for all IFR flights.
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