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The lift hill of Nitro at Six Flags Great Adventure
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.
Lift hills usually propel the train to the top of the ride via one of two methods: a chain lift involving a long, continuous chain which trains hook on to and are carried to the top; or a drive tire system in which multiple motorized tires (known as friction wheels) push the train upwards. A typical chain lift consists of a heavy piece of metal called a chain dog, which is mounted onto the underside of one of the cars which make up the train. This is in place to line up with the chain on the lift hill.
The chain travels through a steel trough, and is normally powered by one or more motors which are positioned under the lift hill. Chain dogs underneath each train are engaged by the chain and the train is pulled up the lift. Anti-rollback dogs engage a rack (ratcheted track) alongside the chain to prevent the train from descending the lift hill. At the crest of the lift, the chain wraps around a gear wheel where it begins its return to the bottom of the lift; the train is continually pulled along until gravity takes over and it accelerates downhill. The spring-loaded chain and anti-rollback dogs will disengage themselves as this occurs.
A lifthill, 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...
Caverns (glowing pools of water by the first lifthill) and precariously balanced rocks in the third lifthill tunnel. The name of the ride itself, "Big...
flat. Sometimes, launch lifthills serve the same purpose as lifthills but offer faster transport to the top of the lifthill; or they are sometimes used...
later, as the final piece of track was installed at the top of the first lifthill. Marketing for The Smiler started around the same time as construction...
Gediminas HillLift (Lithuanian: Keltuvas į Gedimino kalną) — an inclined lift in up the slope of the Gediminas Hill, Vilnius, Lithuania. Opened in 2003...
a 310-foot-tall (94 m) cable lifthill with a 300-foot (91 m) drop, two tunnels, three overbanked turns, and three hills. The coaster also has a top speed...
angle of 85 degrees. Its lifthill structure was unique at the time, utilizing only two main points of support at the hill's crest. At its highest point...
153 km/h (95 mph), it is among the fastest coasters featuring a traditional lifthill. In November 1999, Nagashima Spa Land announced that they would be building...
of Atlantis. Each one combines roller coaster elements, such as chain lifthills and steep drops, with boat-based attraction elements, such as splash-down...
1885, Phillip Hinkle introduced the first full-circuit coaster with a lifthill, the Gravity Pleasure Road, which became the most popular attraction at...
top of the lifthill. Some holes in the mountain's skin were filled in as well, including the two large openings at the top of the lifthill that had allowed...
short hops before turning into the 218-foot-tall (66 m) lifthill. At the crest of the lifthill, the track made a left-hand turn over to the first drop...
the tallest overall among roller coasters that use a traditional chain lifthill. Riders experience speeds of up to 95 mph (153 km/h), winding through...
passengers on Invertigo were stuck on the ride 80 feet (24 m) up its lifthill after it malfunctioned. It took firefighters more than four hours to safely...
followed by a descending turn leading to the 206 ft (63 m) lifthill. As the train crests the hill, it slows down before descending its 91-degree drop, reaching...
ride opened to public on March 27, 2010. It features a 232-foot (71 m) lifthill, a top speed of 75 mph (121 km/h), and a track length of 5,316 feet (1...
was approximately 5,427 feet (1,654 m) in length and the height of the lifthill was approximately 161 feet (49 m). It was constructed from more than 1...
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