Grizzly River Run
The Grizzly River Run layout with basic channels completed (scroll down).
The prototype raft channel design is based on that used in the K'nex Big Ball
Factory. Flexible angles were necessary in the river-rapids section that
descends from Grizzly Peak. Attempts to make the balls more raft-like by
enclosing them inside a ring of pieces were unsuccessful, as were various
attempts at wheeled raft designs. These designs tended to get stuck in the
channels and offered less freedom of movement than using just the balls
themselves. The area in the back of the layout is where the ride path passes
through and around Grizzly Peak, the bear-shaped mountain.
Reference aerial view of the nearly-completed ride at DCA:
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