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Ground Controlled Approach

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Ground-controlled approach
In aviation a ground-controlled approach (GCA), is a type of service provided by air-traffic controllers whereby they guide aircraft to a safe landing, including in adverse weather conditions, based on radar images. Most commonly a GCA uses information from either a Precision Approach Radar (PAR, for precision approaches with vertical, glidepath guidance) or an  Airport Surveillance Radar (ASR, providing a non-precision Surveillance Radar Approach with no glidepath guidance). The term GCA may refer to any type of ground radar guided approach such as a PAR, PAR without glideslope or ASR. When both vertical and horizontal guidance from the PAR is given, the approach is termed a precision approach. If no PAR glidepath is given, even if PAR equipment is used for lateral guidance, it is considered a non precision approach.

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Ground Controlled Approach
Der Bodengesteuerte Anflug (Ground Controlled Approach, kurz GCA) ist ein in der Luftfahrt verwendetes radargesteuertes, bodengeführtes Blindanflugverfahren, das im Zweiten Weltkrieg entwickelt wurde und auch heute noch bei Ausfall der Avionik im Flugzeug als Reserve-Landehilfe-Option besteht.

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Contrôle d'approche
Le contrôle d'approche est un organisme de la circulation aérienne chargé d'assurer les services de la circulation aérienne au bénéfice des aéronefs dans les espaces aériens contrôlés au voisinage d'un aérodrome.

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专业字典

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ground controlled approach
ground瞔ontrolled approach 地面控制进场

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Ground-controlled approach
Ground-controlled approach, i daglig tale kaldet GCA, er et militært radarsystem der med to antenner ser ud ad landingsbanen.

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