Tech. Sgt. Benjamin Polesky, 97th Operations Support Squadron assistant Radar Approach Control chief controller, adjusts knobs on a GPN-20 radar scope Jan. 4, 2012. The GPN-20 radar scope is used to track aircraft within 60 miles and processes radar information.
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ALTUS AIR FORCE BASE, OK, US
This work, 97th OSS RAPCON keeps aircraft flying safe at Altus, by A1C Levin Boland, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.