1st Lt. Dan Griffin, a Maryland Air National Guard student pilot enrolled in the A-10C Pilot Initial Qualification course at Davis-Monthan Air Force Base, Ariz., readies his A-10C beneath the boom of a KC-135 to receive 2,000 pounds of fuel during an aerial refueling mission in the Tombstone Military Operating Area in Southern Arizona April 27. Upon completion of the course in August he will return to Maryland as a fully qualified A-10C attack pilot. (U.S. Air Force photo/Airman Jerilyn Quintanilla)