Derrick Brown, 28th Aircraft Maintenance Squadron contract field team engine mechanic, directs flight control inputs while performing an X-Y plot in a B-1 on Ellsworth Air Force Base, S.D., Sept. 11, 2013. With 27 aircraft to maintain, the CFT shop is a centralized unit with specialists from various career fields who play a vital role in expediting the maintenance process. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/Released)
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