Shuttle roller coaster

A shuttle roller coaster is any roller coaster that ultimately does not make a complete circuit, but rather reverses at some point throughout its course and traverses the same track backwards. These are sometimes referred to as boomerang roller coasters, due to the ubiquity of Vekoma's Boomerang coaster model.

Boomerang is one of the most common shuttle coasters

Early history

The first shuttle coasters were in fact the first roller coasters ever built. Inspired by the so-called "Russian Mountains," these wheeled cars built on tracks found popularity in the early 19th century in Paris.

In 1884, Switchback Railway opened at Coney Island, and consisted of a car that traveled on two tracks between two towers. It was the first roller coaster designed as an amusement ride in America. The next shuttle roller coaster to be built was Backety-Back Scenic Railway, built in 1909.

First launched shuttle coasters
A Schwarzkopf-designed launched roller coaster, Greezed Lightnin' at Kentucky Kingdom

The first two launched shuttle coaster designs were introduced in 1977 by competitors Arrow Development and Anton Schwarzkopf. Arrow built and opened three that year including Black Widow (now defunct) at Six Flags New England, Screamin' Demon (also defunct) at Kings Island, and Zoomerang at Circus World (now located to Fun Spot Amusement Park & Zoo).[1] Arrow's models used an electric motor to launch the train. Anton Schwarzkopf went with a different design using a dropped weight as a launch mechanism. This design was known as the Shuttle Loop. The first three built by that company were King Kobra at Kings Dominion (now located at Hopi Hari in Brazil), White Lightnin' at Carowinds (now located at Gold Reef City in South Africa), and Tidal Wave at California's Great America.[1]

Schwarzkopf later upgraded its launch mechanism to a flywheel design.[2] The first two roller coasters based on this new design were both released in 1978 - Montezooma's Revenge at Knott's Berry Farm and Greezed Lightnin' at Six Flags AstroWorld, currently in storage in Plainview, Texas for Cliff's Amusement Park in New Mexico. The first flywheel launched roller coaster that opened in Europe was Turbine at Walibi Wavre in 1982.

Vekoma's Boomerang

In 1984 Vekoma debuted its Boomerang shuttle coaster, which features a lift hill rather than a launched train. In addition to the original Boomerang, Vekoma also designed the Invertigo and the Giant Inverted Boomerang. As of 2018, 55 Boomerangs and its variants are currently in operation around the world.

Linear motor launched shuttle coasters

In 1996 Premier Rides debuted the first coasters ever to use linear induction motors, and in 1997 opened Batman & Robin: The Chiller at Six Flags Great Adventure, a pair of dueling launched shuttle coasters.

Intamin introduced its reverse freefall coaster in 1997. In these models, the train is accelerated out of the station along a long, level track using linear synchronous motors, rises straight up a vertical tower, then free falls back down to return to the station. Only two reverse freefall coasters were built: Tower of Terror II at Dreamworld, and Superman: Escape from Krypton at Six Flags Magic Mountain, both of which first broke the 300 foot and 400 foot barriers. Tower of Terror II, however, discontinued in 2019.

In 1998, Intamin introduced its first impulse coaster, Linear Gale at LaQua in Japan, which featured inverted trains traversing two vertical towers. In 2000, Intamin introduced Superman Ultimate Escape with a spiral tower and one vertical tower. Intamin introduced Wicked Twister in 2002, a variation with two spiral towers. With each pass through the station the train accelerates faster and travels further up the towers.

gollark: Hmm, we should probably procedurally generate them somehow.
gollark: Who is reasonably going to be able to understand the effects of a million different operations?
gollark: Apparently npm has a few hundred thousand packages. If each of them is one operation, that covers about half of what we need.
gollark: So 132000 operations, *maybe*, although the overloads are probably just slightly different convenience versions.
gollark: There are probably not that many hugely interesting and different operætions.

See also

References
  1. Scheinin, Lisa (2007). "100 Moments in Roller Coaster History: The First Launched Coasters — 1977". RollerCoaster! Magazine. Vol. 28 no. 2. pp. 20–21. ISSN 0896-7261.
  2. Rutherford, Scott (2006). "A Century of Steel Roller Coasters: Schwarzkopf". RollerCoaster! Magazine. Vol. 27 no. 4. p. 9. ISSN 0896-7261.
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