Design Optimization of Subcavitating Hydrofoils for America's Cup Class Yachts

The conventional sailboat design has evolved significantly with the introduction of hydrofoiling technology. By lifting the entire boat out of the water using an underwater wing, speed can be dramatically increased without a corresponding increase in wind speed. This innovative approach minimizes skin friction and wave drag, although there is a slight increase in induced drag due to the wing's presence.

In recent years, the hydrofoil revolution has gained momentum, driven by the pursuit of speed. A notable example is the wing foil design featured on the left, which represents a new class of recreational craft. The reduced forces acting on the wing due to lower drag allow for a lightweight structure that can be easily handled. Additionally, the market is seeing a rise in electric-powered hydrofoils, further expanding the possibilities for recreational use.