Staff Sgt. Matthew Hawkins, 1st Helicopter Squadron flight engineer, scans the horizon from a UH-1N Twin Huey at Camp Dawson, W.Va., May 15, 2015. Flight engineers are system experts and assist the pilot in various operations, including: calculating weight and balance, takeoff/landing data and navigation. (U.S. Air Force photo/ Airman 1st Class J.D. Maidens)