U.S. Air Force Airman 1st Class Brandon Ritenour, 633rd Civil Engineer Squadron heavy equipment operator, controls a loader at Langley Air Force Base, Va., Jan. 9, 2015. The joystick controls the loading and unloading action of the vehicle by elevating and tilting the bucket. (U.S. Air Force photo by Airman 1st Class Devin Scott Michaels/Released)