What is the radius of Class C airspace from the airport?

Class C airspace extends from the surface to 4,000 feet above the airport elevation. It typically has a radius of 5 nautical miles (NM) surrounding the airport, which is designed to protect the aircraft arriving and departing from that airport. The structure is meant to ensure safe separation between aircraft operating in the vicinity of the airport and helps manage the air traffic around it effectively.

This specific configuration allows for a controlled environment where both VFR (Visual Flight Rules) and IFR (Instrument Flight Rules) traffic can operate safely. The 5 NM radius at surface level creates a buffer zone that aids in the monitoring and guidance of aircraft as they enter and exit the airspace.

The other choices incorrectly describe the dimensions of Class C airspace, as they refer to distances that do not align with the standard regulations set forth for such airspace classifications. Understanding these specifications is crucial for drone operators and pilots to ensure compliance when navigating near airports.