 Flying Fortress  is the twenty-fifth episode of the Sonic Underground television series and the first of three episodes in the Chaos Emerald Crisis mini-series. It first aired on 31 March 1999 in France and on 1 October 1999 in the United States.
The 2003 season saw Kings Dominion become the final of several of the Paramount Parks to open a Drop Zone: Stunt Tower, now Drop Tower: Scream Zone. The 305-foot-high (93 m) Drop Zone at Kings Dominion was the tallest freefall ride in the world at the time it opened.
On April 12, 2012, pieces of the ride were taken up in the air by helicopter above the Superman tower (415 feet (126 m) in the air) to connect the ride pieces to the tower. During the first week of May, vertical pieces for Lex Luthor: Drop of Doom were attached to the Superman tower.