A roller coaster, or rollercoaster, is a type of amusement ride that employs a form of elevated railroad track designed with tight turns, steep slopes, and sometimes inversions. Passengers ride along the track in open cars, and the rides are often found in amusement parks and theme parks around the world. LaMarcus Adna Thompson obtained one of the first known patents for a roller coaster design in 1885, related to the Switchback Railway that opened a year earlier at Coney Island. The track in a coaster design does not necessarily have to be a complete circuit, as shuttle roller coasters demonstrate. Most roller coasters have multiple cars in which passengers sit and are restrained. Two or more cars hooked together are called a train. Some roller coasters, notably Wild Mouse roller coasters, run with single cars.
Six Flags AstroWorld, also known simply as AstroWorld, was a seasonally operated amusement park in Houston, Texas. Owned and operated by Six Flags, the park was situated between Kirby Drive and Fannin Street, directly south of I-610. The park opened on June 1, 1968, and was developed originally and constructed as part of the Astrodomain, the brainchild of local philanthropist and former Houston mayor Roy Hofheinz, who intended it to complement the Astrodome. The Hofheinz family sold AstroWorld to Six Flags in 1978.
A steel roller coaster is a roller coaster that is defined by having a track made of steel. Steel coasters have earned immense popularity in the past 50 years throughout the world. Incorporating tubular steel track and polyurethane-coated wheels, the steel roller coasters can provide a taller, smoother, and faster ride with more inversions than a traditional wooden roller coaster.
A roller coaster inversion is a roller coaster element in which the track turns riders upside-down and then returns them to an upright position. Early forms of inversions were circular in nature and date back to 1848 on the Centrifugal railway in Paris. These vertical loops produced massive g-force that was often dangerous to riders. As a result, the element eventually became non-existent with the last rides to feature the looping inversions being dismantled during the Great Depression. In 1975, designers from Arrow Development created the corkscrew, reviving interest in the inversion during the modern age of steel roller coasters. Elements have since evolved from simple corkscrews and vertical loops to more complex inversions such as Immelmann loops and cobra rolls. The Smiler at Alton Towers holds the world record for the number of inversions on a roller coaster with 14.
Arrow Dynamics was an American manufacturing and engineering company that specialized in designing and building amusement park rides, especially roller coasters. Based in Clearfield, Utah, the company was the successor to Arrow Development (1946–1981) and Arrow Huss (1981–1986), which were responsible for several influential advancements in the amusement and theme park industries. Among the most significant was tubular steel track, which provided a smoother ride than the railroad style rails commonly used prior to the 1960s on wooden roller coasters. The Matterhorn Bobsleds at Disneyland, built in 1959, was Arrow's first roller coaster project.
Ronald Valentine Toomer was an American roller coaster designer credited for designing 93 roller coasters around the world. He graduated from the University of Nevada, Reno in 1961 with a degree in mechanical engineering and was a part of the design team responsible for the Apollo spacecraft heat shield.
Texas Cyclone was a wooden roller coaster at the defunct Six Flags AstroWorld in Houston, Texas. Designed by Don Rosser and William Cobb, it was manufactured by Frontier Construction Company and opened to the public on June 12, 1976. Well-known for its airtime, the roller coaster was 93 feet (28 m) tall, 3,180 feet (970 m) long, and had a ride time of two minutes and fifteen seconds. Texas Cyclone was modeled after the original Coney Island Cyclone, which AstroWorld had originally intended to purchase and move to their park before realizing the process would be too expensive.
XLR-8 was a suspended roller coaster located at the defunct Six Flags AstroWorld. Manufactured by Arrow Huss at a cost of $3.2 million, the ride opened to the public in 1984, where it operated until the park's closure in 2005. It was one of Arrow's first attempts at producing a successful suspended coaster following troubles with The Bat at Kings Island, which operated briefly from 1981 to 1983.
A fourth-dimension roller coaster is a type of steel roller coaster whereby riders are rotated independently of the orientation of the track, generally about a horizontal axis that is perpendicular to the track. The carts do not necessarily need to be fixed to an angle.
Viper was a steel roller coaster located at Six Flags AstroWorld in Houston, Texas. Manufactured by Anton Schwarzkopf, the Looping Star model opened in 1989. It consisted of a single loop and was demolished with the closing of Six Flags AstroWorld on October 30, 2005. It had previously operated at Six Flags St. Louis, where it was known as Jet Scream from 1981 to 1988.
The Jester is a steel roller coaster located at the abandoned Six Flags New Orleans amusement park in New Orleans. Built and designed by Vekoma, the ride originally opened at Six Flags Fiesta Texas in 1996 as The Joker's Revenge. After its closure in 2001, the coaster was sent to Six Flags New Orleans where it became The Jester. The ride opened to the public at Six Flags New Orleans on April 13, 2003. Following the devastation to the amusement park in August 2005 by Hurricane Katrina, the roller coaster ceased operation following the park's closure but remains standing.
Big Bad Wolf was a suspended roller coaster in the Oktoberfest section of Busch Gardens Williamsburg. Designed by Arrow Dynamics, the roller coaster opened to the public on June 15, 1984. The ride was in service for more than 25 years before closing permanently on September 7, 2009. The footers, queue line, and station were re-purposed for Verbolten, a roller coaster that was introduced in 2012.
Tsunami was a steel roller coaster manufactured by Anton Schwarzkopf and located at the San Marcos National Fair in Mexico. The coaster was previously located at Six Flags Discovery Kingdom as Zonga, Six Flags AstroWorld as "Texas Tornado", and operated for 10 years on the German traveling funfair circuit as "Thriller" After its time at Marine World, it was sold to the San Marcos National Fair, where it last operated.
Batman The Escape was a stand-up roller coaster located at Six Flags AstroWorld in Houston, Texas, United States. Manufactured by Intamin, the ride featured one inversion and originally opened as Shockwave at Six Flags Magic Mountain in 1986. After briefly operating at Six Flags Great Adventure, it was moved a second time to AstroWorld, where it reopened in 1993 as Batman The Escape. The coaster operated there until the park's permanent closure in 2005. The track was eventually moved to Six Flags Darien Lake, placed into storage, and never reassembled.
Rocky Mountain Construction (RMC), is a manufacturing and construction company based in Hayden, Idaho, United States. The company is best known for its I-Box track and Topper Track for wooden roller coasters. Established in 2001, the company was founded by Fred Grubb and Suanne Dedmon. The company has built over 20 roller coasters. In 2023, amusement ride manufacturer Larson International merged with Rocky Mountain Construction.
Thunder River is a river rapids ride located at two American amusement parks. The first opened in 1980 at Six Flags AstroWorld in Houston, Texas, which was the first of its kind in the world. The popularity led to other similar installations at various Six Flags theme parks throughout the 1980s. Only two with this name remain. One currently operates at Six Flags Over Georgia in Austell, Georgia; the other operates at Six Flags St. Louis in Eureka, Missouri.
Alan Schilke is an engineer and roller coaster designer based in Hayden, Idaho, United States. He first made his mark on the industry by designing the 4th Dimension roller coaster, X2, while working with Arrow Dynamics. Schilke now works as a design engineer at Ride Centerline LLC and occasionally works with Rocky Mountain Construction (RMC).
Excalibur was a mine train roller coaster at Six Flags AstroWorld in Houston, Texas. Built by Arrow Dynamics, the ride opened in 1972 as Dexter Frebish's Electric Roller Ride, until the name was changed in 1980. At the time of its closure, it was the 2nd oldest roller coaster at the park after Serpent.
A hybrid roller coaster is a category of roller coasters that is defined as having the track made out of steel, while the support structure is made from wood. Though less common, this can also be flipped around, with the track made of wood with a steel running plate, and a support structure that is made of steel. An example of this is The Voyage at Holiday World. The wooden frame-steel track design of roller coaster is mostly known to be utilized by Rocky Mountain Construction in their I-Box track design, and Arrow Dynamic's Mine Train style roller coasters.
