Class C airspace surrounds airports that have an operational control tower, are serviced by radar approach control, and have a certain number of IFR operations or passenger enplanements. Class C consists of:
- A 5 NM radius surface area that extends from the surface to 4,000 ft. above the airport elevation.
- A 10 NM radius shelf area that extends from 1,200 ft. to 4,000 ft. above the airport elevation.
Class C Operating Rules and Equipment Requirements (FAR 91.130)
Two-way radio communication must be established and maintained with ATC before entering and while operating in Class C airspace.
Mode C transponder is required within and above the lateral limits of Class C airspace.
Class C Airspace Depiction and Symolology
Class C airspace is depicted with solid magenta radials and arcs
The name of the Class C airspace is shown in magenta block letters, all capitalized
The MSL ceiling and floor altitudes are shown in solid magenta figures
Approach control frequencies for the Class C are shown in magenta boxes