Zero-g stall - Coasterpedia

A zero-g stall is a roller coaster inversion.

While travelling uphill, the track rotates 180 degrees - fully inverting riders. The track then levels out and while travelling downwards, the track rotates 180 degrees again but in the opposite direction.

The element has been featured on four roller coasters, all built by Rocky Mountain Construction:

Goliath at Six Flags Great America
The Joker at Six Flags Discovery Kingdom
Steel Vengeance at Cedar Point
Wildfire at Kolmården Wildlife Park

The first all-steel roller coaster with a zero-g stall, Steel Curtain at Kennywood, will open in 2019.

Similar inversions[edit | edit source]

The Top Gun stall is very similar to the zero-g stall, the only difference being that the track twists in the same direction during the entrance and the exit of the element.

Thrill elements
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Inverting	Banana roll • Barrel roll • Barrel roll downdrop • Batwing • Bent cuban eight • Bowtie • Butterfly • Cobra loop • Cobra roll • Corkscrew • Cutback • Demonic Knot • Dive drop • Dive loop • Dive stall • Diving turn • Dog tongue • Double inverting stall • Drachen fire dive drop • Finnish loop • Fly to lie / Lie to fly • Flying snake dive • Heartline roll • Immelman • Inclined dive loop • Inclined loop • Inclined roll • In-line twist • Interlocking corkscrews • Interlocking loops • Lagoon roll • Maxx dive loop • Negative-g stall loop • Norwegian loop • Over-banked inversion • Pretzel knot • Pretzel loop • Raven turn • Reverse cobra roll • Reverse sidewinder • Roll out • Roll over • Saxophone • Scorpion tail • Sea Serpent • Sidewinder • SkyLoop • Step-up under flip • Tongue • Top-Gun stall • Twisted horseshoe roll • Twisted in-line rollback • Vertical loop • Wing over • Wraparound corkscrew • Zero-g roll • Zero-g stall • Zero-g winder
Non-inverting	Airtime twist • Banked tilt • Camelback circle • Donut hole • Double down • Elephant trunk • Fly-through station • Hammerhead turn • Helix • High five • Hill • Horseshoe • Kickflip • Non-inverted loop • Octopus arm • Over-banked curve • Over-banked pretzel knot • Pretzel curve • S-curve • Shark tail • Slide track • Splashdown • Splash effect • Splash track • Stengel dive • Switch track • Tilt section • Trick track • Triple dip • Tunnel • Turntable • Twisted arch • Twisted dive • Twisted top hat • Vertical drop track • Vertical rollback • Vertical spiral • Wagon wheel • Water brakes • Wave turn
Variable	Jr. Immelmann • Jr. Scorpion tail • Top hat
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