The next unique element is a helix, of which half is banked outwards, provides an odd tipping sensation, but surprisingly, no uncomfortable lateral forces.
Green Lantern Coaster
Green Lantern Coaster
17 December, 2011 by Gavin Seipelt
The next unique element is a helix, of which half is banked outwards, provides an odd tipping sensation, but surprisingly, no uncomfortable lateral forces.