Six Flags Great Adventure
Great American Scream Machine byla ocelová horská dráha v zábavním parku Six Flags Great Adventure. Dráha, vysoká 173 stop, byla vybudována v roce 1989 a stržena v roce 2010, aby udělala místo další horské dráze. Dosahovala rychlosti až 109 km/h (68 mph) a svého času byla nejrychlejší horskou drahou světa.
Byla navržena Ronem Toomerem a vybodována společností Arrow Dynamics, kteří vybudovali i sesterskou dráhu Shockwave (demontována v roce 2002) v parku Six Flags Great America v Gurnee, Illinois, a dráhu Viper v parku Six Flags Magic Mountain ve Valencii, California. Všechny tři dráhy mají tři looping po hlavním kopci, batwing a dvojitou vývrtku.
Kolejnice dráhy jsou červené s bílými sloupy. Vlaky jsou pojmenovány Freedom (červený), Liberty (bílý) a Spirit (modrý). The ground features a red and white design similar to the stripes in a waving American flag.
Do jednoho vlaku se vejde 28 návštěvníků. 3 vlaky mohou odbavit celkem 84 návštěvníků každé 2 minuty a 20 sekund, 27krát do hodiny. Celková kapacita je tedy 1680 návštěvníků za hodinu.
The shoulder restraint handles are made of foam instead of metal.
On-ride fotoaparát dráhy Great American Scream Machine's je umístěn na začátku dvojité vývrtky.
Modifikace
After its first season Great American Scream Machine's vertical loops had their tops removed and replaced with track that had additional bracing due to issues that other Arrow coasters had been experiencing, especially Shockwave at Six Flags Great America. The original top of the first loop can be found in the monkeys' enclosure in the Wild Safari at Six Flags Great Adventure. Along with the new loop tops, a brake run was installed after the first loop. The brake run is not set up to stop a train; it is set up to slightly adjust the speed of the train after its exit from the loop.
Six Flags Over Georgia
The Great American Scream Machine is a wooden roller coaster located at Six Flags Over Georgia. The 105-foot tall ride reaches a top speed of 57 miles per hour. GASM, as it is known to park workers, was built by the Philadelphia Toboggan Company in 1973 with Marvin M. Black & Sons as the contractor. When it opened, it was the tallest wooden roller coaster in the world, and riders were given a "Red Badge of Courage" button for riding the coaster.[citation needed]
Operational Information
A computerized block system is used to prevent trains from contacting each other. GASM has 5 blocks: Station, Transfer Table, Lift, Ready Brake, and Safety Brake. Normal operation uses two trains; however, it can be operated with only one. During two-train operation, if the train in the station has not fully exited the platform, the inbound train still stop abruptly in the Ready Brakes. A combination of proximity switches, mechanical switches, photoelectric sensors, and timers are all used by the controller to track train movements.
Each train consists of four cars with three rows per car; two riders per row, holding 24 total riders. Each row has a lap bar and a seat belt. The lapbar itself is locked and unlocked by an electrical current that activates solenoids on the train, resulting in a "buzzing" electrical sound. They can be troublesome, sometimes requiring the operating crew to manually unlock the lapbar for a rider. The trains ride on steel wheels with guide wheels and upstops attached. The track is plank wood stacked 7 planks high, with steel running surfaces on the top, bottom and sides (locations where the running, guide, and upstop wheels contact the track).
Before computerized control existed, operators used a lever to operate the brake system and dispatch trains. The operator near the end of the station controlled the main brakes at the end of the circuit; the operator at the front of the station operated the brakes at the station platform only and worked to dispatch trains to the lift.
When the nearby Chattahoochee River floods, the Scream Machine can be partially immersed in several feet of water.
