Wing Coaster

[3] In 2010, Bolliger & Mabillard announced a prototype Wing Coaster design that would be built at Merlin Entertainments' Gardaland.

[7] A year later, Merlin Entertainments opened a second Wing Coaster on 15 March 2012, called The Swarm at Thorpe Park.

[8][9] In the United States, the first Wing Coaster to be announced was X-Flight, which opened at Six Flags Great America on 16 May 2012.

[10][11] Dollywood's Wild Eagle actually opened earlier on 24 March 2012, making it the first Wing Coaster in North America.

[42] It launches riders from 0 to 135 kilometres per hour (84 mph) in 3.5 seconds with trains that seat six rows of four people (two on either side of the track).

Examples of 4th Dimension roller coasters include X2 at Six Flags Magic Mountain and Eejanaika at Fuji-Q Highland.

Raptor at Gardaland was the world's first Wing Coaster, opening in 2011.
A ride operator checking the restraints on X-Flight at Six Flags Great America . Notice how the bars on the restraint system are not what actually hold the rider in place.
X-Flight at Six Flags Great America going through the signature keyhole element .