Maxx Force at Six Flags Great America (located in Gurnee, Illinois) is famous for having one of the fastest and most intense launches in North America. The air-powered compressed launch system shoots the train from zero to 78 mph (125 km/h) in an incredible 1.8 seconds. This record-breaking acceleration creates a "seat-plastering" sensation that few other coasters can match. Following the initial launch, the ride immediately enters the world's fastest inversion at 60 mph and continues through a series of high-speed maneuvers, including a 175-foot double-inverting "dog tongue" element. While the total ride duration is relatively short (roughly 25 seconds of high-speed track), the sheer power of the initial zero-to-seventy-eight launch makes it a "Level 5" thrill ride that attracts coaster enthusiasts from around the world looking for the ultimate kick of inertia and speed.