Top Thrill 2 is a launched roller coaster located at Cedar Point in Sandusky, Ohio, United States. The ride originally opened as Top Thrill Dragster in 2003, becoming the tallest and fastest roller coaster in the world, as well as the first ever strata coaster – a height classification of 400 feet (120 m) or more. Designed by Werner Stengel, the Accelerator Coaster model from Intamin debuted with a height of 420 feet (130 m) and could accelerate from 0 to 120 mph (190 km/h) in 3.8 seconds. It was themed to Top Fuel drag racing, with the launch track designed to resemble a dragstrip, and it consistently ranked as one of the world's top steel coasters in Amusement Today's annual Golden Ticket Awards publication. Top Thrill Dragster's records were surpassed in 2005 by Kingda Ka at Six Flags Great Adventure.
The Scenic Railway is a wooden roller coaster located at the Dreamland Amusement Park in Margate, United Kingdom. It first opened in 1920 and is the oldest roller coaster in the UK. The ride is distinctive compared to modern-day roller coasters, as a brakeman is still required to travel with the train to control its speed, manually applying brakes when needed. It is also one of only eight scenic railways in the world, and the UK's English Heritage granted the roller coaster Grade II listed status in 2002 and Grade II* listed status in 2011. The Scenic Railway was non-operational from 2006 until 2015 amid park closure and restoration following an arson attack.
Kingda Ka is a hydraulically-launched steel roller coaster located at Six Flags Great Adventure in Jackson, New Jersey, United States. Manufactured by Intamin and designed by Werner Stengel, Kingda Ka opened as the tallest and fastest roller coaster in the world on May 21, 2005, surpassing Top Thrill Dragster. It is the second strata coaster ever built, exceeding 400 feet (120 m) in height. Both were made with similar designs, although Kingda Ka's layout adds an airtime hill on the return portion of the track.
Bolliger & Mabillard, officially Bolliger & Mabillard Consulting Engineers, Inc. and often abbreviated B&M, is a roller coaster design consultancy based in Monthey, Switzerland. The company was founded in 1988 by engineers Walter Bolliger and Claude Mabillard, both of whom had worked for Giovanola.
A lift hill, or chain hill, is an upward-sloping section of track on a roller coaster on which the roller coaster train is mechanically lifted to an elevated point or peak in the track. Upon reaching the peak, the train is then propelled from the peak by gravity and is usually allowed to coast throughout the rest of the roller coaster ride's circuit on its own momentum, including most or all of the remaining uphill sections. The initial upward-sloping section of a roller coaster track is usually a lift hill, as the train typically begins a ride with little speed, though some coasters have raised stations that permit an initial drop without a lift hill. Although uncommon, some tracks also contain multiple lift hills.
The launched roller coaster is a modern form of roller coaster. A launched coaster initiates a ride with high amounts of acceleration via one or a series of linear induction motors (LIM), linear synchronous motors (LSM), catapults, tires, chains, or other mechanisms employing hydraulic or pneumatic power, along a launch track. This mode of acceleration powers many of the fastest roller coasters in the world.
A side friction roller coaster is an early roller coaster design invented by Edward Joy Morris. The design introduced side-friction wheels to help prevent trains from derailing during curved portions of the track. In addition to weight-bearing wheels traditionally located on the underside of each train car, friction wheels were added to both sides, which roll perpendicular along the inner edge of the track.
An eddy current brake, also known as an induction brake, Faraday brake, electric brake or electric retarder, is a device used to slow or stop a moving object by generating eddy currents and thus dissipating its kinetic energy as heat. Unlike friction brakes, where the drag force that stops the moving object is provided by friction between two surfaces pressed together, the drag force in an eddy current brake is an electromagnetic force between a magnet and a nearby conductive object in relative motion, due to eddy currents induced in the conductor through electromagnetic induction.
A rollback occurs on a launched roller coaster when the train is not launched fast enough to reach the top of the tower or hill. It will roll backwards down the tower, and will be stopped by brakes on the launch track. Any roller coaster on which it is possible for a rollback to occur will have these brakes. Intamin, a manufacturer of roller-coasters, refers to the "rollback" as a "short shot".
The launch track is the section of a launched roller coaster in which the train is accelerated to its full speed in a matter of seconds. A launch track is always straight and is usually banked upwards slightly, so that a train would roll backwards to the station in the event of a loss of power.
A brakeman is a rail transport worker whose original job was to assist the braking of a train by applying brakes on individual wagons. The advent of through brakes, brakes on every wagon which could be controlled by the driver, made this role redundant, although the name lives on, for example, in the United States where brakemen carry out a variety of functions both on the track and within trains.
Stealth is a launched roller coaster in the Amity area of Thorpe Park located in Surrey, England. Built and designed by Intamin of Switzerland for £12 million, the Accelerator Coaster model opened in 2006 as the fastest roller coaster in the UK, and is the third tallest in the UK after Hyperia and the Big One at Blackpool Pleasure Beach. It reaches a height of 62.5 metres (205 ft) and accelerates from 0 to 80 mph (129 km/h). Riders experience a maximum of 4.7 g.
Rolling Thunder was a racing roller coaster located at Six Flags Great Adventure in Jackson Township, New Jersey. Designed by William Cobb, it opened in 1979 as the park's first wooden coaster during its fifth operating season. Rolling Thunder closed permanently in 2013 to make room for Zumanjaro: Drop of Doom, which opened in 2014.
A magnetic track brake is a brake for rail vehicles. It consists of brake magnets, pole shoes, a suspension, a power transmission and, in the case of mainline railroads, a track rod. When current flows through the magnet coil, the magnet is attracted to the rail, which presses the pole shoes against the rail, thereby decelerating the vehicle.
American Eagle is a wooden racing roller coaster located at Six Flags Great America theme park in Gurnee, Illinois. It was the first wooden roller coaster designed by Intamin of Switzerland and was built in 1981 by the contracting firm Figley-Wright at a cost of $10 million. While most of the records have since been broken, American Eagle had the longest drop and fastest speeds among wooden roller coasters when it debuted and is still recognized as a top racing coaster in the United States.
Xcelerator is a steel launched roller coaster located at Knott's Berry Farm in Buena Park, California, United States. Manufactured by Intamin and designed by Werner Stengel, it opened in 2002 as the company's first hydraulically-launched coaster and cost $13 million to construct. Following the early demise of Windjammer Surf Racers, a dueling roller coaster that briefly operated from 1997 to 2000, Xcelerator was soon announced as its replacement. It launches to a maximum speed of 82 mph (132 km/h) in 2.3 seconds and reaches a height of 205 feet (62 m).
An Accelerator Coaster is a hydraulically launched roller coaster model from Intamin. The model usually consists of a long, straight launch track, a top hat tower element, and magnetic brakes that smoothly stop the train without making contact. The technology was developed by Intamin engineers as an alternative to electromagnetic launch systems, such as the Linear Induction Motor (LIM) and Linear Synchronous Motor (LSM), that are found on earlier launched roller coasters like the Flight of Fear and The Joker's Jinx. Unlike the earlier linear induction motors, the Accelerator Coaster's launch system exhibits constant acceleration and is capable of reaching greater speeds.
Acrophobia is a free-fall tower ride located at Six Flags Over Georgia in Austell, Georgia. The attraction was designed by Intamin of Switzerland, and is marketed by Intamin's Liechtenstein-based subsidiary Ride Trade. When Acrophobia opened to the public on May 12, 2001, it became the first free-fall attraction of its kind in the world.
On a roller coaster, the wheel assemblies are the point of contact between the cars carrying the riders and the track rails. They often consist of at least 3 wheels per assembly, but can contain more.
