Three U.S. Air Force F-16 Fighting Falcons fly in formation. Three U.S. Air Force F-16 Fighting Falcon Block 30 aircraft from the 80th Fighter Squadron fly in formation over South Korea during a training mission on Jan. 9, 2008. The squadron will be upgrading to F-16 Block 40 aircraft under the common configuration implementation program, which increases mission capability and combat readiness by utilizing newer airframes and avionics. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 671638-S-BMH69-284.jpg Photo Gallery