A terminal control area (TMA, or TCA in the U.S. and Canada), also known as a terminal manoeuvring area (TMA) in Europe, is an aviation term to describe a designated area of controlled airspace surrounding a major airport where there is a high volume of traffic. TMA airspace is normally designed in a circular configuration centered on the geograph...
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http://en.wikipedia.org/wiki/Terminal_control_area
(from the article `airport`) ...en route air traffic control instructions as it flies through successive flight information regions (FIRs). Upon approaching an airport at which a ...
Found on
http://www.britannica.com/eb/a-z/t/27
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