Of the two trains used on the ride, each one seats a capacity of 24 people in six cars and utilize both seat belts and lap bars. The height of the roller coaster is , and its drop is ; the maximum speed reached is . Unlike classic out and back rides, Roar is a twister design. Six Flags America's Roar, called Roar (East) by GCI, was built in 1998. Unlike its sibling in the west, this ride is longer at and has a slightly longer ride time. The longer track length is due to the ride's location on a slanting hillside, and longer drops on the station side and lift hill. Its trains, designed and maintained by Philadelphia Toboggan Coasters, are also different. Roar is one of the three rides at Six Flags America that featured an on-ride camera (the others being and Apocalypse). It has been removed along with the camera on Apocalypse. The ride is situated in the park's "Chesapeake" themed section. Six Flags Discovery Kingdom's Roar, called Roar (West) by GCI, was built in 1999 in light of adding the Six Flags moniker to the Marine World amusement park. At , this coaster was shorter than the installation at Six Flags America. The ride consisted of two 12 car Millennium Flyer trains. This type of train helps give the sensation of a steel roller coaster utilizing the classic wooden style design. Roar was situated in the "Sky" animal-themed area of the park. It closed on August 16, 2015. On July 16, 2015, Six Flags Discovery Kingdom announced that Roar would be retired on August 16, 2015. The closure marked the completion of the attraction's seventeenth season. Park president Don McCoy released a statement that the ride was being removed to make room for future expansion. An estimated 11 million visitors to the park have ridden the roller coaster since its debut in 1999. On September 3, 2015, Six Flags announced that the Roar at Six Flags Discovery Kingdom would be transformed into a "wood-steel hybrid" named The Joker featuring three inversions. Rocky Mountain Construction performed the conversion, opening the new version on May 28, 2016. Irvin William Akerley  Irvin William Akerley, (24 November 1904 – 11 March 1995) was a Nova Scotia businessman and politician. Born in Pugwash, Nova Scotia, the son of Harry and Margaret MacLeod Akerley, he was a businessman in Dartmouth running his own businesses and working for others. In 1955, he was elected the first mayor of Dartmouth.