Flash: Vertical Velocity (Six Flags Discovery Kingdom)

Roller coaster in the United States
Watch the on-ride POV
The Flash: Vertical Velocity
Vertical Velocity in 2008
Six Flags Discovery Kingdom
Location Vallejo, California, USA
Coordinates 38°08′17″N 122°13′56″W / 38.138159°N 122.232285°W / 38.138159; -122.232285
Park section DC Universe
Status Operating since June 8, 2001
Rider height
  • Minimum: 54 inch
  • Maximum: 75 inch
Manufacturer Intamin
Product Impulse Coaster Twist & Spike (56m)
Type Steel - Inverted - Launched - Shuttle
Track layout U-Shuttle
Riders per train 28
Hourly capacity 900
Propulsion LIM launch (multi-pass)
Height 150 feet
Top speed 65 mph
Length 630 feet
Inversions 1

The Flash: Vertical Velocity is a steel launched shuttle inverted roller coaster located at Six Flags Discovery Kingdom in Vallejo, California, USA. It was built by Intamin and opened on June 8, 2001 as V²: Vertical Velocity.[1]


Six Flags Discovery Kingdom announced the addition of V² in early 2001.[2]

The ride was set to open on May 24, 2001, but the opening was delayed to June 8.[3]

When V² first opened, it was 186 feet tall and both sides of the track were vertical. However, this violated the city of Vallejo's height limit of 150 feet. Even though Six Flags Discovery Kingdom advertised the ride's height as 150 feet, authorities could tell that the ride was in clear violation of the height limit. Six Flags had to either modify the ride's height, or remove V² completely. Eventually, the park chose to modify the ride.[4] During the 2002 season, the ride was temporarily closed while the track was shortened from 186 feet to 150 feet. To lower the height, the front tower was tilted to a 45-degree angle, creating the first twisted in-line rollback in the world, and the reverse was tower lowered to 150 feet while still being vertical.[5] These modifications were carried out by Valley Iron.[6] V² then reopened in the summer of 2002.[7]

For the 2007 season, V² was repainted with red track and maroon supports. Originally, the ride had yellow track and blue supports.[8]

For part of the 2016 season, V² was closed for unknown reasons.

For the 2019 season, the ride became part of a new area called DC Universe and the name was changed to The Flash: Vertical Velocity. The supports were repainted once again, this time to yellow.[9]



Color scheme

Red track and yellow supports. The coaster opened with yellow track and blue supports, later being repainted to featured orange track and purple supports in 2007 before receiving its current scheme in 2019.


Single train with 7 cars. In each car, riders are arranged 2 across in 2 rows, for a total of 28 riders per train.



  1. "V2: Vertical Velocity - Scream Machine".
  2. "Straight Up With A Twist At Six Flags Marine World". {{cite web}}: Unknown parameter |publihser= ignored (|publisher= suggested) (help)
  3. Six Flags Parks M-Z (June 6, 2001) - Screamscape (Wayback archive)
  4. "A-Z Coaster of the Week: V2: Vertical Velocity". Coaster101. February 21, 2017. Retrieved February 6, 2022.
  5. "Vertical Velocity To Angle Riders In New Direction". Ultimate Rollercoaster.
  6. Projects - Valley Iron
  7. "V2 Vertical Velocity Coaster Reopens at Marine World". Ultimate Rollercoaster.
  8. "Rejected Amusements: V2 Vertical Velocity at Six Flags Marine World". NewsPlusNotes.
  9. "Six Flags Discovery Kingdom to Combine Popular DC Rides Into New DC Universe Themed Area". NewsPlusNotes.

External links

Articles on Six Flags Discovery Kingdom