page_title: Giant Inverted Boomerang
section_title: Problems
hierarchical_section_title: Giant Inverted Boomerang / Problems
caption_attribution_description: English: Deja Vu roller coaster at Six Flags over Georgia Category:Images of roller coasters Today it's now called Aftershock at Silverwood Theme Park in Athol, Idaho
context_page_description: A Giant Inverted Boomerang is a type of steel shuttle roller coaster manufactured by the Dutch firm Vekoma. The ride is a larger, inverted version of Vekoma's popular Boomerang sit down roller coasters. As of August 2020, five installations of the model are operating, with another one under construction.
context_section_description: Six Flags had originally ordered four Giant Inverted Boomerangs in 2001 (the three Déjà Vu coasters in U.S.A. and Stunt Fall at Warner Bros. Movie World in Madrid, Spain). However, following the installation of the 3 Déjà Vu coasters and the discovery of several problems, Six Flags allowed Vekoma to resolve these problems before installation of their fourth coaster, Stunt Fall. Vekoma has since upgraded the original three rides to use this system.
  One problem was clearance between the riders and the track overhead. After the trains were mounted to the track, it was quickly discovered that riders could reach and touch the track while the train was in motion, posing the risk of injury. Vekoma had to improvise, adding new bars to the original shoulder restraint to prevent guests from reaching up too high.
  During initial testing on Six Flags Over Georgia's Déjà Vu, the catch car (a small device that catches and holds the train) on the first tower derailed, breaking parts and destroying the components of the train beyond economical repair. The ride received a replacement train shortly after.
  During tests it was discovered that trains would stall in the middle of the boomerang. Unplanned, the parks installed emergency unloading scaffolding in this location, similar to other Boomerang roller coasters.
  Another problem of the ride is the locking mechanism for the shoulder restraints. The Giant Inverted Boomerangs require the use of a battery pack to unlock each restraint in the event of a power loss. Virtually all other roller coasters have a quick manual release system to unload in unusual locations for emergency situations.
  Some smaller or younger riders complained that the restraints give too much room for the riders to "fall forward" during the lift. People who were barrel-chested, overweight or obese complained of chest compressions during the moments that they were on the main lift. 
  On July 11, 2016, Goliath at Six Flags New England suffered a cable snap on tower one, shutting down the ride for months until replacement parts were obtained and installed.
caption: The former Déjà Vu at Six Flags Over Georgia was relocated to Mirabilandia where it is in storage today.
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