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Roller Coaster: Extremeroller (5/31/1983 to 1988)
EXT (5/31/1983 to 1988)
Screamroller (1976 to 1982)
Amusement Park: Worlds of Fun (Kansas City, Missouri 64161 USA)
Classification: Roller Coaster
Type: Steel - Sit Down
Status: Operated from 1976 to 1988
Relocated to: Formosa WonderWorld as Spiral
Make / Model: Arrow / Corkscrew
Capacity: 1800 riders per hour
 
Length: 1250' 
Height: 70' 
Inversions: 2 
Speed: 50 mph 
Duration: 1:10 
Elements: Double Corkscrew
 
 
History:

For the 1983 season standup trains were put on the Screamroller's track and the ride was called the Extremeroller or E.X.T. This made the Extremeroller the first looping standup roller coaster in North America. The track and structure were never designed for such trains and this proved not to be a practical in time. Because of this the standup trains were removed and the original sitdown trains were reinstalled.

ACE (American Coaster Enthusiasts) has the standup trains in storage.

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