1st Lt. Dan Griffin, a pilot from the 358th Fighter Squadron at Davis-Monthan Air Force Base, Ariz., taxis his A-10C Thunderbolt II along the flightline Aug. 13, 2010, for his final training sortie. Lieutenant Griffin is a recent graduate of the A-10C Pilot Initial Qualification Course, a 27-week training course during which the pilots were instructed and evaluated on daily flying, academics, officership and professionalism. (U.S. Air Force photo/Airman 1st Class Jerilyn Quintanilla)