Hydroplanes incorporate a “Tunnel” under the boat that traps air as the boat reaches racing speeds, using the air pressure trapped in the tunnel to lift the boat and allowing it to reduce drag by flying across the water rather than plowing through it. The tunnel is formed by the inside edges of the sponsons and incorporates an “Air Trap” that has a varying contour that is taller at the front than at the back. The Air Trap compresses the air as it travels under the boat and provides lift on the h

A modern Unlimited Hydroplane is the world’s fastest circuit racing boat, capable of speeds in excess of 200 mph. It represents the product of over 100 years of evolution in race boat design and incorporates the most powerful engines, most advanced construction techniques and the best safety systems available in boat racing today. All Unlimited Hydroplanes are a “three point” design, meaning they are designed to only touch the water at three points when racing: at the rear of the two front “spon