A-10 qualification
1st Lt. Dan Griffin, a pilot from the 358th Fighter Squadron at Davis-Monthan Air Force Base, Ariz., looks over his pre-flight checklists June 23, 2010, just before stepping out to the flight line. He was preparing for the second of eight night flights. As part of the A-10C Pilot Initial Qualification course curriculum, he must learn to execute night flying missions using night vision goggles. He'll accomplish this over the next few weeks through six hours of academic classes, five hours in the A-10 flight simulator and eight training flights. (U.S. Air Force photo/Airman 1st Class Jerilyn Quintanilla)