Front wings

A Frontwing (front wing) is the main lifting wing of a hydrofoil in water sports. It is the largest component of the underwater wing system and generates the necessary lift to lift the board and rider out of the water even at low speeds and keep them afloat.

Design and operation

• Material & shape: Front wings are usually made of durable carbon or fiberglass composites to ensure maximum stiffness with a thin profile. Their shape resembles that of an airplane wing, with the curvature of the upper surface generating hydrodynamic lift.
• Aspect ratio: The geometry differs greatly depending on the ratio of wingspan to wing depth. "Low aspect ratio" wings are more compact and thick, while "high aspect ratio" wings are extremely long, narrow, and thin.

Features and characteristics

• Surface area determines lift: The total surface area (measured in square centimeters) determines how much lift the wing generates. Large surface areas (from approx. 1500 cm²) generate a lot of lift even at very low speeds, while small surface areas (under 1000 cm²) are designed for high speeds.
• Low aspect ratio (Safety & control): These wider wings offer high roll stability, start foiling extremely early, and are forgiving. They respond smoothly in turns and are ideal for safely learning to foil.
• High aspect ratio (Gliding & speed): These narrow, elongated wings offer minimal water resistance. They have excellent gliding properties, stay airborne for extremely long periods without wind support, and can be pumped with leg power (pumping/downwind).