U.S. Air Force Senior Airman Brian Thompson, a Precision Measurement Equipment Laboratory journeyman assigned to the 57th Maintenance Squadron, Nellis Air Force Base, Nev., calibrates a theodolite for the 99th Civil Engineers Squadron April 5, 2011. A theodolite is used for surveying land and tracking weather balloons. (U.S. Air Force photo by Senior Airman Michael Charles/Released)
<dl><dd>Unit: Defense Imagery Management Operations Center</dd>
<dd>DVIDS Tags: electronics; ACC; PMEL; Nellis Air Force Base; DIMOC; maintenance; DVIDS Bulk Import</dd></dl>
Senior Airman Michael Charles
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