Fourth-dimension roller coaster

Fourth-dimension roller coaster
'X²' (formerly 'X') was the first fourth-dimension roller coaster in the world.
StatusIn production
First manufactured2002
No. of installations18
ManufacturersArrow Dynamics (discontinued), S&S Worldwide, and Intamin
Riders per row4
Restraint StyleOver-the-shoulder

A fourth-dimension roller coaster is a type of steel roller coaster where riders are rotated independently of the track's orientation, generally about a horizontal axis perpendicular to the track. The cars do not need to be fixed to an angle.


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