ground-controlled approach radar

ground-controlled approach radar

[′grau̇nd kən‚trōld ə‚prōch ′rā‚där]
(engineering)
A ground radar system providing information by which aircraft approaches may be directed by radio communications. Abbreviated GCA radar.
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mobile ground-controlled approach radar systems were integral precision landing equipment for air traffic controllers during World War II and into the 19505.

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