Airspace Hierarchy

BTS Transportation Expressions Dictionary

Airspace Hierarchy

Within the airspace classes, there is a hierarchy and, in the event of an overlap of airspace: Class A preempts Class B. Class B preempts Class C, Class C preempts Class D, Class D preempts Class E. and Class E preempts Class G. (FAA4)

By the Bureau of Transportation Statistics.

FAA Pilot/Controller Glossary

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AIRSPACE HIERARCHY

Within the airspace classes, there is a hierarchy and, in the event of an overlap of airspace: Class A preempts Class B, Class B preempts Class C, Class C preempts Class D, Class D preempts Class E, and Class E preempts Class G.

Source: U.S. Department of Transportation, Federal Aviation Administration (FAA).

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