ground-controlled approach
or ground-con·trol approach
[ground-kuh n-trohld]
noun Aeronautics.
a system in which an observer interprets radar observations of the position of an aircraft and transmits continuous instructions to its pilot for landing. Abbreviation: GCA
Origin of ground-controlled approach
First recorded in 1940–45
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019