GASM (Great Adventure) batwing

The Batwing element on Great American Scream Machine

A batwing is a heart shaped element that inverts riders twice. It is made up of a sidewinder, followed by a reverse sidewinder. This inversion is the inverse of a cobra roll.

The element was first used on Orient Express, where it was called a "kamikaze curve". Orient Express was demolished after the 2003 season.

On later Arrow Dynamics roller coasters, such as Great American Scream Machine at Six Flags Great Adventure, it is known as a boomerang, however on Bolliger & Mabillard roller coasters, such as Montu at Busch Gardens Tampa and Afterburn at Carowinds, it is known as a batwing.

A similar element is the Bowtie.


Name Park Manufacturer Type Opened Status
Afterburn Carowinds Bolliger & Mabillard Inverted 1999 Operating
Goudurix Parc Astérix Vekoma Sit-Down 1989 Operating
Great American Scream Machine Six Flags Great Adventure Arrow Dynamics Sit-Down 1989 Defunct
Montu Busch Gardens Tampa Bolliger & Mabillard Inverted 1996 Operating
ShockWave Six Flags Great America Arrow Dynamics Sit-Down 1988 Defunct
Smiler Alton Towers Gerstlauer Sit-Down 2013 Under construction
Viper Six Flags Magic Mountain Arrow Dynamics Sit-Down 1990 Operating
Viper Darien Lake Arrow Dynamics Sit-Down 1982 Operating
Vortex Kings Island Arrow Dynamics Sit-Down 1987 Operating
Thrill elements
Banana RollBatwingBent Cuban EightBowtieButterflyCobra LoopCobra RollCorkscrewCutbackDive DropDive LoopDiving TurnDouble DipFly to Lie / Lie to FlyFlying Snake DiveHelixImmelmanInclined Dive LoopInclined LoopIn-Line TwistInterlocking CorkscrewsInterlocking LoopsNon Inverted LoopNorwegian LoopPretzel KnotPretzel LoopRaven TurnReverse SidewinderRoll OutRoll Over / Sea SerpentSaxophoneSidewinderSkyLoopSplashdownTop hatTrick TrackToungeTriple DipTunnelTurntableTwisted Horseshoe RollZero-G Roll