California's Great America debuted Tidal Wave, an Anton Schwarzkopf Shuttle Loop coaster, on July 8, 1977. Using the drop of a weight, the seven car train is accelerated down a straight section of track reaching 57 miles-per-hour. The U-shape layout features one 360-degree vertical loop between the station and forward spike. The coaster does not form a complete circuit, so the train shuttles riders between the ends, traveling both forwards and backwards during the course of the ride.
1999 – Tidal Wave renamed Greased Lightnin'
2002 – Removed and relocated to Six Flags Marine World.
Train has seven cars with two rows each, seating two abreast per row.
Height requirement: Riders must be at least 48 inches tall
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