tunnel hull boat designs
Questions and answers for high performance powerboat enthusiasts. frequented by the most successful tunnel boat designers, racers, drivers, builders. experts share secrets on performance challenges on tunnel boats and modified tunnel vee hulls.. A tunnel-hull is constructed to displace water from the bottom of a jon boat through a trough in the center and the rear of the jon boat upward toward the boats’ motor when on plane. this allows you the jon boat user to jack the motor above the bottom of your boat to where the hull can hit obstructions first and not the foot of the motor.. Tunnel boats fly over the water on the lift created by their airfoil-shaped hulls and the air trapped and compressed between their sponsons. plus, they turn sharper than any other vehicle on water or land. the fastest outboard boats in the world are tunnels. i am currently offering plans for six tunnel boats, as seen in the photos displayed. 
tunnel hull boat designs I recently bought a 17' alumacraft tunnel hull with a 75 hp evinrude e-tec (not a jet). i bought it to run in rivers and shallow water. the motor sits about 7-8'' below the boat which seems pretty low.. The unique tunnel hull design of our boats is based upon principles developed in the hydroplane industry. the dual-sponson tunnel hull traps air coming in from the bow and compresses it towards the stern, causing you to ride on a cushion of air. as a result, the total wet planing surface area is next to nothing, creating a smooth, stable and.
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