Abstract: The invention relates to a hydrofoil arrangement for a hydrofoil craft with at least one fully submerged lifting wing. The hydrofoil arrangement includes at least two struts pivotally arranged on the hydrofoil craft with each strut being connected to a lifting wing. The struts are arranged with their centers of effort of hydrodynamic forces behind the pivot axes of the struts during forward travel of the hydrofoil craft. They are arranged to pivot relative to the hydrofoil craft when the hydrofoil craft experiences a disturbance in roll-angle. This results in a transversal movement of the hydrofoil craft relative to the water surface during forward travel. The hydrofoil arrangement also increases the roll- stability for a hydrofoil craft.

Abstract: The invention relates to a hydrofoil arrangement for a hydrofoil craft with at least one fully submerged lifting wing. The hydrofoil arrangement includes at least two struts pivotally arranged on the hydrofoil craft with each strut being connected to a lifting wing. The struts are arranged with their centers of effort of hydrodynamic forces behind the pivot axes of the struts during forward travel of the hydrofoil craft. They are arranged to pivot relative to the hydrofoil craft when the hydrofoil craft experiences a disturbance in roll-angle. This results in a transversal movement of the hydrofoil craft relative to the water surface during forward travel. The hydrofoil arrangement also increases the roll-stability for a hydrofoil craft.