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A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds. The hydrofoil usually consists of a winglike structure mounted on struts below the hull, or across the keels of a catamaran in a variety of boats. As a hydrofoil-equipped watercraft increases in speed, the hydrofoil elements below the hull(s) develop enough lift to raise the hull out of the water, which greatly reduces hull drag. This provides a corresponding increase in speed and fuel efficiency. TIMESTAMP 00:00 ▶ Intro NEW GENERATION HIGH-SPEED VESSELS 00:58 ▶ 1. VALDI-45R 01:32 ▶ 2. KOMETA 120M FUTURE-ORIENTED HIGH-SPEED VESSELS 02:00 ▶ 3. METEOR V2 02:26 ▶ 4. CYCLONE 300M 02:
