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Flip Flap Railway

Flip Flap Railway was the name of a looping wooden roller coaster which operated for a number of years at Paul Boyton's Sea Lion Park on Coney Island, New York. The coaster, which opened in 1895, was notable for being the first looping roller coaster to operate in North America. It was also notable for its engineering as well as the extreme G-forces that this engineering inflicted on riders.