Six Flags Great America · operating · 1995
Viper
100 ft · 50 mph
A rare wooden looping coaster with a vertical loop and a helix — one of the last woodies with an inversion.
Specifications
Ride profile
Scaled against Six Flags Great America's operating coasters
Park intensity
Height
100 ft
#7 of 9 at Six Flags Great America
Ride experience
Launches, airtime, layout style, and more
- Looping
- Wood
Specs from sixflags.com
Learn more
Rocky Mountain hybrid coasters
Steel track on reinvented wooden structures — steep, twisted, and often relentless.
Track compliance — why wood feels alive
Wood flexes; steel is stiffer — the same forces feel different on each structure.
Twister layouts
Helixes and direction changes stacked in one direction — classic wooden feel.
Wooden vs steel coasters
Structure and maintenance differ, but the question for riders is feel — vibration, sound, and how the train moves.
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Sources & official links
We link out to parks, manufacturers, and the pages where facts and media come from.
- Six Flags Great America — official sitesixflags.com(opens in a new tab)
- Six Flags Great America on Coaster AtlasPark page
- Ride specifications sourcesixflags.com(opens in a new tab)