A type of element on a roller coaster, the cobra roll provides two inversions in quick succession. The element begins with a half-loop, then transitions into a half-corkscrew. It immediately continues into another half-corkscrew, followed by another half-loop, sending the train out in the opposite direction from which it entered the element. Arrow Dynamics calls this a "batwing" and Vekoma calls it a "boomerang" while Intamin and Bolliger & Mabillard just use the generic name. Cobra rolls are popular elements because the two inversions come very close together. The cobra roll was first seen on Escorpion, a Vekoma coaster that opened at Six Flags Mexico in 1988.


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