Shuttle Loop

[2][3] Two other rides were also installed that year: White Lightnin' at Carowinds and Tidal Wave at Marriott's Great America (California).

[4][5] Tidal Wave at Marriott's Great America (Illinois) opened in 1978 and was the last to feature the weight drop launch system.

Twenty-two theme parks have operated Shuttle Loops, with half of the twelve original installations being relocated at some time.

[24] The patent describes two launch systems, both of which were implemented in various roller coasters:[22][23][24] Gerstlauer completed an upgrade of Walibi Belgium's installation for the 2013 season.

The passengers were hanging heads-down for one hour and twenty minutes, only held in place with lap bar restraints.

[40][41] A 20-year-old woman died on September 1, 2001, one day after riding Montezooma's Revenge, the Shuttle Loop at Knott's Berry Farm.

The original train and station of Turbine at Walibi Belgium
Figure 1 from Anton Schwarzkopf's patent for the Shuttle Loop roller coaster (patent US4165695, "Amusement ride with vertical track loop"). The image shows the overall layout of the ride.
Montezooma's Revenge at Knott's Berry Farm