Spectators look on as the U.S. Air Force Thunderbirds perform one of their many maneuvers during the 2014 Wings of Freedom Open House, Sept. 13, 2014. During their performance, the Thunderbirds executed solo and formation maneuvers including the Delta Burst, Arrowhead Loop and the Cross Over Break. (U.S. Air Force photo by Airman 1st Class Nathan Clark/Released)