Ninja is a suspended coaster built by Arrow Dynamics. It opened in May 1988.
The three parallel sets of transfer tracks are visible in the foreground of this old picture. Two trains are suspended under the transfer tracks in this image, but it is a little hard to see the rearmost train. In order to move unused trains on and off these storage areas, there are multiple segments of track that are composed of two pieces placed on top of each other. In each pair, one piece is straight and the other is curved, so as the segment is rotated, it acts like a switch and allows the train to take different paths. One switch is seen in the lower right corner of this picture. The unused top track is straight in this picture, but if you proceed to the next page, you will see the curved segment rotated to the top.
©2016 Joel A. Rogers.