LANGLEY AIR FORCE BASE, Va. -- Gen. William M. Fraser III, (right), commander of Air Combat Command, Col. Scott Zobrist, (second from right), 388th Fighter Wing commander, Master Sgt. Carl Falcione, (second from left), F-16 Viper West Demonstration Team noncommissioned officer in charge, and Tech Sgt. Mike Bylica, (from left), Viper West team chief, look to the skies above Langley Air Force Base, Va., while the A-10 West Demo Team pilot performs a certification flight Feb. 2. Demonstration teams converged on Langley for three days to receive annual certification from ACC before beginning their 2011 air show tour. (U.S. Air Force photo/Staff Sgt. Ashley Hawkins)