• Permission from ATC
Controlled airspace is a generic term that covers the different classifications of airspace and defined dimensions within which air traffic control (ATC) service is provided in accordance with the airspace classification. Controlled airspace that is of concern to the remote pilot is: • Class B airspace : major airports. Solid Blue Lines ("Big City") Class B airspace is generally airspace from the surface to 10,000 feet mean sea level (MSL) • Class C airspace : ("City airports ") Solid Magenta Lines Class C airspace is generally airspace from the surface to 4,000 feet above the airport elevation (charted in MSL) • Class D airspace : ("Dinky Dime Size ") small airports. (Dash Blue Lines) Class D airspace is generally airspace from the surface to 2,500 feet above the airport elevation (charted in MSL) • Class E Airspace : "Everywhere" Class E airspace is the controlled airspace not classified as Class A, B, C, or D airspace. Dash Magenta Lines • Uncontrolled Airspace Class G Airspace " Uncontrolled " airspace Class G airspace is the portion of the airspace that has not been designated as Class A, B, C, D, or E. It is therefore designated uncontrolled airspace. Class G airspace extends from the surface to the base of the overlying Class E airspace. A remote pilot will not need ATC authorization to operate in Class G airspace.
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