Xcelerator is a steel launched roller coaster at Knott's Berry Farm in Buena Park, California. It was Intamin's first hydraulically launched coaster, while also the fourth Intamin installation at Knott's, alongside The Sky Cabin, Bigfoot Rapids and Perilous Plunge (removed in 2012). Xcelerator was standing but not operating between July 2017 and March 24, 2018.