ground control

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ground control

1. the personnel, radar, computers, etc., on the ground that monitor the progress of aircraft or spacecraft
2. a system for feeding continuous radio messages to an aircraft pilot to enable him to make a blind landing
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

ground control

[′grau̇nd kən‚trōl]
(civil engineering)
Supervision or direction of all airport surface traffic, except an aircraft landing or taking off.
(engineering)
The marking of survey, triangulation, or other key points or system of points on the earth's surface so that they may be recognized in aerial photographs.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ground control

The operating position in the control tower that provides clearances and instructions for the movement of aerodrome ground traffic, and pertinent information to all traffic within the aerodrome perimeter.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved