radar contact lost

radar contact lost
i. A term used by air traffic control (ATC) to inform a pilot that the radar data used to determine the aircraft’s position are no longer available. The loss may be attributed to several factors, including the aircraft’s merging with weather or ground clutter, the aircraft’s operating below the radar’s line-of-sight coverage, the aircraft’s entering the area of poor radar return, the aircraft’s transponder failing, or the radar ground equipment failing.
ii. When used by an interceptor aircraft, it means that the target aircraft is no longer on the radarscope. It may be because the target has moved out of the field of view of the interceptor radar or out of the range of radar pickup, or any other reason.

Aviation dictionary. 2014.

Игры ⚽ Нужен реферат?

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