What does the “C” symbol on aeronautical charts indicate?

The "C" symbol on aeronautical charts denotes a controlled airfield that requires specific communications between the pilot and the air traffic control (ATC). This symbol indicates that there are established procedures and regulations that must be adhered to when operating in the vicinity of these airports. Pilots are expected to contact the control tower to receive guidance on takeoffs, landings, and ground movements, ensuring safe and efficient air traffic management.

This symbol is crucial for pilots as it helps them identify airports where standard communication practices are followed, enhancing safety. Knowing that a "C" symbol indicates a requirement for communication with ATC helps pilots prepare for their flight operations and navigate appropriately in controlled airspace.