F-35A Lightning II
Lt. Col. Benjamin Bishop completes preflight checks before his first sortie in an F-35A Lightning II, March 6, 2013, at Eglin Air Force Base, Fla. Bishop is among the first pilots to begin the official training that began in January. The Air Force announced May 31, 2013, it expects to declare F-35 Lightning II initial operation capability in December 2016. The announcement was included in a joint report detailing service-specific IOC requirements and dates for each of the F-35 variants that was delivered to Congress. (U.S. Air Force photo/Samuel King Jr.)