Operating since
Make: Intamin Amusement Rides
Model: Impulse Coaster / Twist & Spike (56m)
| Length | 630 ft |
|---|---|
| Height | 150 ft |
| Speed | 65 mph |
| Inversions | 1 |
| Vertical Angle | 90° |
| Elements | LIM Launch (multi-pass) Vertical Rollback Twisted In-Line Rollback |
| Arrangement | Single train with 7 cars. Riders are arranged 2 across in 2 rows for a total of 28 riders. |
|---|
| Former names | Vertical Velocity ( to ) |
|---|---|
| Former status | SBNO from to Operated from to |
| Capacity | 900 riders per hour |
| Vertical Velocity was closed for the start of the 2002 season while it was modified to be no more than 150 feet tell -- a height limitation imposed by the city. The forward tower was changed from a 90° vertical tower to 45° inclined tower. The rear tower remained vertical, but was shortened, presumably to 150 feet. How/why the Vertical Velocity was erected in excess of 150 feet is a mystery. Six Flags Great America in Gurnee, Illinois also built a identical Vertical Velocity for the 2001 season. While identical rides, the press releases differed by park - Six Flags Great America claimed a height of 186 feet while Six Flags Marine World claimed 150 feet. |