Performance

Hull Speed

Also known as: displacement speed, theoretical speed

The theoretical maximum speed of a displacement hull sailing yacht, calculated as approximately 1.34 × √LWL (where LWL is in feet, speed in knots). Beyond this speed, wave drag increases dramatically. Light displacement, planing, or semi-planing hulls can exceed traditional hull speed limitations.

Related Terms

Displacement

The weight of the water displaced by a sailing yacht, which equals the yacht's total weight. Measured in tonnes or kilograms. Heavier displacement (diesel, steel, or heavily built) provides more comfort in rough seas and storage capacity but reduces acceleration and top speed compared to lighter displacement designs.

Technical

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