V2: Vertical Velocity (fictional)

V2: Vertical Velocity (also known as Vertical Velocity) is a steel Inverted Impulse roller coaster located at several Six Flags amusement parks and is manufactured by Intamin under the trade name Twisted Impulse Coaster. V2 was introduced in 2001.

Layout
The coaster’s track is essentially a large U shape that is loaded at the base and uses a series of LIMs to accelerate the train up each side of the track. The track usually incorporates two 185-foot vertical towers. The forward tower incorporates a twisted spiral, and the rearward towering provides a straight freefall.

Two variants of this layout exist, one which the same as the standard layout, but it has two twisted spirals instead of one. The other one is a smaller model standing at a max height of 150 feet and it has an 45 degree angled section with an inline twist.

Real

 * Six Flags Great America - 2001
 * Six Flags Discovery Kingdom - 2001

Fictional

 * Six Flags Great Kadsre (SFDK clone) - 2001
 * Six Flags Eirabourne Discovery World (SFGA clone) - 2002