What are the typical dimensions of Class C airspace?

Class C airspace typically has a structure that encompasses a core area and a shelf. The standard configuration for Class C airspace begins with a 5 nautical mile radius that extends from the surface up to 4,000 feet above the airport elevation, creating an area of controlled airspace around busy airports. This allows for safe operations in and out of airports with significant traffic while providing separation from other air traffic.

The configuration is designed to enhance safety, as it requires pilots operating within this airspace to establish two-way communication with the air traffic control tower, ensuring that both pilots and controllers are aware of traffic in the area. This radius helps manage the flow of aircraft and allows for the effective monitoring of air traffic.

In contrast to Class C airspace's specifications, other options may describe dimensions associated with other classes of airspace, or may not conform to standard practices for Class C, which is specifically tailored for busy airspace around major airports. This understanding is crucial for maintaining safe operations in controlled flight environments near these airports.