Great Adventure: On another family vacation in 1978 (1 year before Rolling Thunder was built) we went to Great Adventure (pre Six Flags era). In the area then known as Strawberry Fair, there was some coaster like ride. It resembled the helices of a Jumbo Jet, but with out the spiral lift… it was almost all at ground level. It doesn't appear on any of the coaster lists from that era.
'74- park opens with featured rides being Runaway Train, Log Flume, Skyride, Giant Wheel, and Antique Carousel (along with a Schwarzkopf Jumbo Jet and Wildcat)
I couldn't find any pictures of it but,i did find this website with the statement above...
http://colossalcoasters.freeservers.com/root/againfo.html Click GA timeline if it doesn't take you directly to the timeline page :)
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Rickyswmn