How is Class D airspace defined in terms of altitude?

Class D airspace is defined as the airspace from the surface up to but not including 2,500 feet above the airport elevation. This airspace is typically associated with airports that have an operational control tower, and the dimensions may vary by location. The altitude range is designed to ensure safe and controlled operations for both manned aircraft and unmanned aircraft operating under the FAA Part 107 regulations.

As Class D airspace is generally up to 2,500 feet, it is important that pilots are aware of where this airspace begins and ends to maintain compliance and safety during flight operations. Understanding the vertical limits of Class D airspace is crucial for effective navigation and communication within controlled airspace.