Twisted Sisters Statistics Park: Six Flags Kentucky Kingdom Type: Wood Opened: 6/20/98 Status: Operating Ride Time: 2:00-2:30 Track Length: 3000 feet Top Speed: 55 mph Inversions: 0 Lift Height: 80 feet Vertical Drop: ? feet Angle Of Descent: 45-50 degrees G-Force: 3-4 Designer: Custom Coasters Int, Inc. Builder: Custom Coasters Int, Inc. Cost: ? Capacity: ? riders an hour Features: Two wooden coasters with passengers that compete with each other at speeds of up to 55 mph. Vehicles: Seven cars per train. Riders are arranged 2 across in 2 rows for a total of 28 riders per train. Structure: Southern yellow pine with a steel structure. History: These roller coasters are the world's first "dueling" coasters.