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The Nacra Inter 18 stands as a landmark in the evolution of modern multihull racing, representing the pivotal shift from traditional teardrop hull shapes to the highvolume, wavepiercing profiles that dominate the sport today. Launched in the mid1990s and designed by the renowned firm Morrelli & Melvin, the Inter 18 was engineered to bridge the gap between recreational beach catamarans and the burgeoning Formula 18 (F18) racing class. It was one of the first production catamarans to fully integrate an asymmetric spinnaker system into its core design philosophy, rather than treating it as an aftermarket addition. This model solidified Nacra’s reputation for producing "technical" boats that demanded—and rewarded—higher levels of athleticism and tactical skill.
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Monthly asking-price and listing-volume trends for the Nacra Inter 18. The line shows the median ask each month; the bars show how many listings appeared.