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.

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
 * Six Flags Discovery Kingdom

Fictional

 * Six Flags Great Kadsre (SFDK clone)