What is the vertical limit of Class D airspace?

The vertical limit of Class D airspace extends from the surface up to, but not including, 2,500 feet above ground level (AGL). Class D airspace is typically established around airports that have an operational control tower, and its main purpose is to provide controlled airspace for aircraft operating in close proximity to the airport.

This airspace structure helps ensure safe separation between aircraft operating in the vicinity of the airport. The limit of 2,500 feet AGL is specifically set to accommodate various types of aviation operations and maintain a safe buffer for these operations as they transition to and from the airport environment.

Other height specifications for airspace classes do not apply to Class D airspace. For instance, Class B airspace covers from the surface up to 10,000 feet MSL around larger airports, and Class C airspace typically extends from the surface to 4,000 feet AGL, but does not specifically define a vertical limit of 2,500 feet AGL like Class D does.