Blend of America's Cup and 90, from the fact that this boat class of sailboat yacht is approximately 90-feet on the waterline.
"ac90." YourDictionary, n.d. Web. 13 October 2018. <http://www.yourdictionary.com/ac90>.
ac90. (n.d.). Retrieved October 13th, 2018, from http://www.yourdictionary.com/ac90
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