The Gravity Group


The Gravity Group is a wooden roller coaster design firm based in Cincinnati, Ohio, United States. The firm was founded in July 2002 out of the engineering team of the famed but now defunct Custom Coasters International. The core group of designers and engineers at The Gravity Group have backgrounds in civil, structural and mechanical engineering. Their experience comes from work on over 40 different wooden roller coasters around the world. The first coaster designed under the Gravity Group opened as Hades at Mount Olympus Theme Park in 2005. The Gravity Group also designed The Voyage at Holiday World in Santa Claus, Indiana, which opened in May 2006 and is the second longest wooden roller coaster in the world. These first two accomplishments of the team have been received with great success by both the industry and coaster enthusiasts alike.
In 2007, The Gravity Group opened Boardwalk Bullet, an intense wooden roller coaster that was built at Kemah Boardwalk and opened as the only wooden coaster in the Greater Houston area. The Gravity Group designed Ravine Flyer II at Waldameer in Erie, Pennsylvania, which was opened at the start of the 2008 season. In 2009 Fireball was opened at Happy Valley in China, becoming China's first wooden roller coaster. In 2011 Quassy Amusement Park opened Wooden Warrior, the company's sixth wooden roller coaster. The Gravity Group was also involved in the rebuilding of Libertyland's Zippin Pippin at Bay Beach Amusement Park in Green Bay, Wisconsin.
In 2008, members of The Gravity Group announced the development of their own wooden coaster trains called Timberliners. They are being produced by Gravitykraft Corporation, a sister company to The Gravity Group. The Gravity Group promotes their trains as the only wooden coaster trains capable of steering through curves, resulting in a more comfortable and maintenance friendly ride. Timberliners were planned to debut on The Voyage at Holiday World for the 2010 season, but after four years of delays, Holiday World officially cancelled the project on August 16, 2013. However, in 2011, the Timberliners appeared on Wooden Warrior at Quassy Amusement Park in Connecticut and on Twister at Gröna Lund in Sweden, and in 2013 were added to Hades as part of its transformation to Hades 360.

List of roller coasters

As of 2019, The Gravity Group has built 28 roller coasters around the world.
NameModelParkCountryOpenedStatusRef
Hades 360
Formerly Hades		Steel Support StructureMt. Olympus Water & Theme Park United States2005
The VoyageSteel Support StructureHoliday World United States2006
Boardwalk BulletWood Support StructureKemah Boardwalk United States2007
Ravine Flyer IISteel Support StructureWaldameer United States2008
Wooden Coaster - FireballWood Support StructureHappy Valley Shanghai China2009
Wooden WarriorWood Support StructureQuassy Amusement Park United States2011
TwisterSteel Support StructureGröna Lund Sweden2011
Zippin PippinWood Support StructureBay Beach Amusement Park United States2011
Dauling DragonWood Support StructureHappy Valley Wuhan China2012
Fjord Flying DragonWood Support StructureHappy Valley Tianjin China2013
Roar-o-SaurusWood Support StructureStory Land United States2014
Time TravelWood Support StructureHot Go Park China2014
Cú ChulainnWood Support StructureTayto Park Ireland2015
SwitchbackSteel Support StructureZDT'S Amusement Center United States2015
Jungle TrailblazerWood Support StructureOriental Heritage Jinan China2015
Jungle TrailblazerWood Support StructureFantawild Dreamland Zhengzhou China2015
Jungle TrailblazerWood Support StructureOriental Heritage Wuhu China2015
TimberWood Support StructureWalibi Rhône-Alpes France2016
Jungle TrailblazerWood Support StructureOriental Heritage Ningbo China2016
Jungle TrailblazerWood Support StructureFantawild Dreamland Zhuzhou China2016
Mine BlowerSteel Support StructureFun Spot America Kissimmee United States2017
Jungle TrailblazerWood Support StructureOriental Heritage Xiamen China2017
Oscar's Wacky TaxiSteel Support StructureSesame Place United States2018
Wood ExpressSteel Support StructureParc Saint Paul France2018
Jungle TrailblazerWood Support StructureFantawild Asian Legend China2018
Kentucky FlyerSteel Support StructureKentucky Kingdom United States2019
LeviathanWood Support StructureSea World Australia2020
Sunac Jinan China2021