| 摘要 |
A roller coaster with a figure-8-shaped track section has a hoisting section on one side of a loop enveloping the figure 8, followed by a descending section extending over the entire opposite side of that loop from the highest to the lowest track level passing around the end of the loop at a tilt angle 80 DEG , thereupon continuing upwardly beneath the hoisting section to the other end of the loop; there follow two intersecting, undulating S-curves, defining the figure-8 portion of the track, and finally a convoluted home stretch. The track is formed by parallel tubular rails interconnected in their axial plane by transverse and diagonal struts elevated above the bed of a supporting trestle by pedestals providing clearance for brake member which are suspended from the outer ends of the wheel axles of the carriages externally of the rails and pass around the latter to their undersides. |
