Why are catamarans among the fastest types of sailing craft?

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Alaska: Commercial fishing — boat A commercial salmon-fishing boat in Alaska.

Catamarans are among the fastest types of sailing craft primarily due to their unique twin-hulled design. Unlike traditional monohulled boats, which rely on heavy keels for stability, the catamaran's two hulls provide a wide, stable platform that resists heeling (tipping) without the need for excessive weight.

This reduced displacement and increased stability allow catamarans to achieve significantly higher speeds, with some reaching speeds of 32.19 km (20 miles) per hour. Their design efficiency is so notable that early versions designed by Nathanael Herreshoff in the 1870s were so successful against monohulls that they were eventually barred from organized racing. Modern advancements have further refined their performance, solidifying their status as high-speed vessels in both sport and recreation.1