Medusa (Six Flags Discovery Kingdom)

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Medusa
Medusa's loop.
Six Flags Discovery Kingdom
Location	Six Flags Discovery Kingdom
Park section	Sky
Coordinates	38°08′26″N 122°14′01″W / 38.14056°N 122.23361°W / 38.14056; -122.23361
Status	Operating
Opening date	March 18, 2000
Cost	$15,000,000 USD
General statistics
Type	Steel – Floorless Coaster
Manufacturer	Bolliger & Mabillard
Designer	Werner Stengel
Model	Floorless Coaster
Lift/launch system	Chain lift hill
Height	150 ft (46 m)
Drop	150 ft (46 m)
Length	3,937 ft (1,200 m)
Speed	65 mph (105 km/h)
Inversions	7
Duration	3:15
Capacity	1600 riders per hour
G-force	4.5
Trains	3 trains with 8 cars. Riders are arranged 4 across in a single row for a total of 32 riders per train.
Medusa at RCDB

Medusa is a steel roller coaster located at Six Flags Discovery Kingdom in Vallejo, California. Built by Bolliger & Mabillard, Medusa opened in 2000 as the first floorless roller coaster on the West Coast. The roller coaster features seven inversions, a 150-foot (46 m)-tall lift hill with a 150-foot (46 m) drop, and the first Sea serpent roll element ever built on a B&M roller coaster. The ride is the longest coaster in Northern California at 3,937 feet (1,200 m) long and is notable as having one of the largest vertical loops in the world at 128 feet (39 m). It also shares the height record in Northern California with another two rides in the same park, The Flash: Vertical Velocity, and Superman: Ultimate Flight at 150 feet (46 m) high.

On November 10, 1999, Six Flags Discovery Kingdom (then Six Flags Marine World) announced that Medusa would be added to the park. It would be a custom floorless coaster built by Bolliger & Mabillard.^[1] The ride officially opened on March 18, 2000.^[2] It was built over the park's original parking lot, directly in front of the park.

The ride starts with a large left-hand turnaround out of the station and onto the lift hill. At the top is a B&M pre-drop followed by a right turn. After that is the large 150 feet (46 m) drop which achieves the same height as the lift hill despite the B&M Pre-Drop by dipping below ground level into a pit. The drop is followed by a 128 feet (39 m) vertical loop. Medusa then features a dive loop to the left and a zero-G roll. The ride then enters a Sea-Serpent roll. After a very quick breather during the mid-course brakes, the train whips into a twisting left-hand drop into a flatspin under the brake run. The on-ride photo is taken directly after the first flatspin. The ride then travels through an inclined helix to the left before diving into the second flatspin. The ride's finale is a quick 85 degree banked helix to the right before a quick S-Turn, which creates the sensation that the train will run into one of the lift supports. Then, the ride will either glide into the brake run and travel back toward the station, or may come to a sudden stop if it is operating with three trains and another train is already in the station.

• Medusa (Six Flags Great Adventure), a floorless roller coaster at Six Flags Great Adventure formerly known as Bizarro

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