The Accelerator Coaster is
Intamin AG's term for their hydraulically-launched
roller coaster model. These models are the tradename for some of the fastest rides on earth.An accelerator coaster is named because of its long, straight
launch track, its tower, known as a "top hat", and its magnetic brakes that smoothly stop the
train without even touching it. After the top hat, the layout varies widely, ranging from a flat
brake run to several inversions. If this type of coaster is not launched fast enough to clear the top hat (which can happen for several reasons), it will
roll backwards down the tower and along the launch track. For this reason, the launch track is fitted with retractable brakes that are retracted for the launch and extended at all other times. The main
brake run uses the same type of brakes, which are fixed in place.
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