Airport

Airport

A station, usually consisting of buildings, airfields and runways, used to provide a place for aircraft to take off and land as well as to house commercial services for passengers and on-board staff.

Industry: Aviation

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Airport

Radar return

Aviation; Air traffic control

(1) The electromagnetic energy received after reflection from an object. (2) The deflection or change of intensity produced by a radar echo on a cathode ray tube display.

A radar system that requires complementary aircraft equipment (transponder). The transponder generates a coded reply signal in response to transmissions from the ground station (interrogator). Since ...

Runway-holding position

Aviation; Air traffic control

ICAO: A designated position intended to protect a runway, an obstacle limitation surface, or an instrument landing system (ILS)/microwave landing system (MLS) critical/sensitive area at which taxiing ...

Localizer type directional aid (LDA)

Aviation; Air traffic control

U.S.: A NAVAID used for nonprecision (sic) instrument approaches with utility and accuracy comparable to a localizer but which is not a part of a complete instrument landing system (ILS) and is not ...

Low altitude alert system (LAAS)

Aviation; Air traffic control

U.S.: An automated function of the TPX-42 that alerts the controller when a Mode C transponder-equipped aircraft on an IFR flight plan (FP) is below a predetermined minimum safe altitude. If ...

Maximum authorised altitude (MAA)

Aviation; Air traffic control

U.S.: A published altitude representing the maximum usable altitude or flight level (FL) for an airspace structure or route segment. It is the highest altitude on a Federal airway, jet route, area ...

Minimum crossing altitude (MCA)

Aviation; Air traffic control

U.S.: The lowest altitude at certain fixes at which an aircraft must cross when proceeding in the direction of a higher minimum en route IFR altitude (MEA).