U.S. Air Force Staff Sgt. Thomas Mitchum (left) and Master Sgt. Joe Speer (right), 81st Aerial Port Squadron, Port Dawg Challenge participants, remove loading ramps from a C-130 Hercules during an aerial port engine running on-load challenge at Dobbins Air Reserve Base, Ga., June 16, 2015. The Port Dawg Challenge was created to enhance and maintain the camaraderie, esprit de corps and prestige of aerial port Airmen while promoting professionalism, leadership, training and communication between "Port Dawgs." (U.S. Air Force photo by Senior Airman Josh Slavin/Released)