Screamin' Eagle is a wooden roller coaster at Six Flags St. Louis. When it opened on April 10, 1976 for America's Bicentennial celebration, Guinness World Records listed it as the largest coaster at 110 feet (34 m) high and as the fastest coaster at 62 mph (100 km/h). The ride is a modified 'L'-Shaped Out And Back. The Screamin' Eagle was manufactured by the Philadelphia Toboggan Coasters and was the last coaster designed by the renowned John Allen, who was a historic designer of roller coasters. Allen believed a coaster should inspire awe, not only from a ride full of thrills, but also from its magnificent beauty. Originally Allen wanted to design a coaster to replace the Comet at Chain of Rocks Amusement Park, but lack of funds prevented him from doing such. The Screamin' Eagle is reminiscent of the Comet, mirroring its L-shape, but to a much larger scale.