Airman 1st Class Kevin Berneburg, 334th Air Refueling Squadron boom operator, logs flight information during a in-flight refueling mission Aug. 1, 2013. The weight of each passenger and additional cargo are calculated before each flight, helping the boom to find the plane’s center of gravity. (U.S. Air Force Photo/Airman 1st Class John Linzmeier)
Airman 1st Class John Linzmeier
Taken on 1 August 2013
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