What is the generally accepted vertical limit of Class D airspace?

The generally accepted vertical limit of Class D airspace is 2,500 feet above ground level (AGL). Class D airspace typically extends from the surface up to a specified altitude, which is often 2,500 feet AGL. This limit is designed to provide a controlled environment for aircraft operating in the vicinity of an airport with an operational control tower, ensuring safe separation between different types of air traffic.

While airspace classifications can vary, Class D airspace specifically serves airports where there is a need for communication with air traffic control to maintain safety and efficiency in operations. This vertical limit is standard as it allows for sufficient separation between other surrounding airspace classes while still managing lower altitude operations effectively.

Understanding the vertical limits of different airspace classes is critical for pilots, as it impacts their flight planning, navigation, and communication with air traffic control.