Master Sgt. Mark Crane, flight engineer, Kentucky Air National Guard, and Bangladesh Air Force Sgt. Mohammad Moniruzzaman, flight engineer, monitor aircraft conditions during a flight in support of exercise Cope South at Kurmitola Air Base, Bangladesh, April 25, 2012. C-130 flight engineers monitor aircraft engine systems, determine the performance of the aircraft and manage checklists during each flight. Exercise Cope South 12 is a bilateral tactical airlift exercise conducted between the two air forces that ended April 26, 2012. (U.S. Air Force photo/1st Lt Cammie Quinn)