Conversion
Kris Clark checks a technical manual as he replaces a gyro on an F-16 Fighting Falcon July 30, 2010, at Davis-Monthan Air Force Base, Ariz. F-16s are being converted into usable manned or drone targets allowing Airmen to train and test new weapons platforms. Mr. Clark is an aircraft mechanic for the 309th Aerospace Maintenance and Regeneration Group. (U.S. Air Force photo/Staff Sgt. Desiree N. Palacios)