Tech. Sgt. Travis Kidwell, 40th Helicopter Squadron UH-1N Iriquois flight engineer, calculates take-off and landing data using charts to update a TOLD data card July 6, 2016, near Malmstrom Air Force Base, Mont. Flight engineers update the data when the environment changes because it can affect the performance of the helicopter. ( Air Force photo/Staff Sgt. Delia Marchick)

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Size: 1400px × 2100px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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