Boat building plans for the dillon mini tunnel, a gt pro class racing powerboat from dillon racing.. outboard runabouts, hydroplanes, and speedboat plans and kits for a variety of construction methods designed for the home boat builder... Liberator boats, 21 liberator - website if you want classic design, solid build and a hull that can handle any power, this is a great boat. built in crowley texas, the 21 liberator is known to drive very well and can handle some chop, making it ideal for a variety of conditions.. Maneuvering your tunnel king is a new sensation if you are used to conventional boats. the boat tracks straight as an arrow, but when put into a turn, the hull remains flat and level responding quickly and positively to your action on the helm. tunnel king can be powered with moderate to high horsepower single outboards..
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.. While the tunnel boat derives much of its high performance from air lift, it depends at the same time on its planing interaction with the water to maintain a stable and controlled flight. this interdependence of hydrodynamic and aerodynamic design is the key to the approach to tunnel design.. Also available: cockpit plans can be adapted to the pro tunnel. i built the original dillon pro tunnel in the winter of 2009 and sold the bare hull to another member of our twin city powerboat racing club..
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