it enters a wide-radius curve followed by a vertical loop (previously a top hat prior to 2017). The train then enters a slight left turn before hitting a brake run. A second left turn followed by a right U-turn, both taken at slower speeds, brings the train back to the station. The ride has a total of 4 trains with 4 cars per train. Each car seats 2 riders side-by-side, resulting in a total capacity of 8 riders per train. Characteristics The 55 second ride takes the rider across of steel tracks, and peaks at a maximum height of . Reaching top speeds of in 1.6 seconds, Do-Dodonpa retained the title of world's fastest roller coaster for nearly a year and a half before Cedar Point's Top Thrill Dragster took it in May 2003. This gives the ride an acceleration at launch of , and up to 3.3 g. By comparison, astronauts only experience 3 g at liftoff, though for a duration substantially longer than 1.6 seconds. While the ride has been tested at speeds of up to , its rubber tires prevent it from performing reliably at these speeds, so engineers capped the speed at prior to the ride's renovation. Before Do-Dodonpa's initial opening, only two roller coasters reached or went beyond the barrier. As of 2020, that number stands at six (including Do-Dodonpa): Superman: Escape from Krypton; Red Force; Top Thrill Dragster; Kingda Ka; Do-Dodonpa; and Formula Rossa, the world's fastest roller coaster. Furthermore, Tower of Terror II, which was previously known as Tower of Terror, once traveled at least , but it is currently no longer in operation. Incidents Since its opening in 2001, Do-Dodonpa has had several incidents resulting in injury to passengers. On 15 May 2007, a 37-year-old man sustained a minor injury when a plastic cover at the front of the train came loose and hit his right knee. The man was not badly injured because the plastic cover disconnected near the end of the ride when the train had slowed down significantly. The park operator stated that the cover likely came off due to cracks created over time by vibrations in the train. Further inspection of the other trains showed no similar damage. From December 2020 to August 2021, there were 18 injuries sustained while riding Do-Dodonpa, which included nine incidents of broken bones. Fuji-Q Highland owner Hiroaki Iwata apologized for the injuries