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Tunnel Hull - Gator Trax Boats
A tunnel hull is a type of boat hull that uses two typically planing hulls with a solid centre that traps air. This entrapment then creates aerodynamic lift in addition to the planing (hydrodynamic) lift from the hulls. Many times this is attributed to ground effect. Theoretical research and full-scale testing of tunnel hulls has demonstrated the dramatic contributions of 'close-proximity ground effect' on enhanced aerodynamic lift/drag in operation of performance tunnel hull designs. Prop Pockets/Tunnel Drives. These seem like a really good idea as you get shallower draft and reduced shaft angle so they're more efficient.. myboat270 boatplans they aren't that common, there must be a downside.� I've never spent much time operating boats with tunnels/pockets. But most of the pros and cons mentioned above are consistent with what I've heard from owner/operators. I'll add one more, depending on construction method they can be more expensive due to increased man hours.� An alternative to the tunnel is the Seabright or Higgins style hull. They used a box keel to both lower the engine for a straighter shaft run to the prop and to protect the prop. They are also considered a shoal draft hull. This type hull is not limited to small boats. Tunnel Boat design, vee hull design, power boat design, speed prediction, powerboat performance analysis and setup secrets.� "Everything you need to know about tunnel hull design and performance, includes modified vee hulls, history of tunnel boats, performance prediction and optimization, including detailed 'How-To' calculations." TBDP. - Design, analyze, optimize the performance of your tunnel boat or power catamaran. "The best powerboat design and performance optimization software available to owners, builders, designers, drivers." NEW FEATURES! New articles, new products, boating announcments, books, newsletters, software release/updates, publications, downloads, research/papers. TU.

It has nothing to do with fishing and everything to do with boating. The language, their boats and the style of bass fishing are unique. A different breed of angler belongs in this cult. Running across the lake is a necessary means of getting to the final destination. That is far upstream to the headwaters.

Swift water runs through tight, meandering channels so narrow you could cast from end to end. Unpressured smallmouth fishing awaits those daring to make the run. There is plenty of it around, thanks to the Tennessee Valley Authority's system of dams in the region. Boat handling takes a special breed of angler.

Turns are judged on missing by inches boulders eager to impale an aluminum boat hull. Coming off plane is not an option. Do that and get stuck on the rocks. Some chutes are only slightly wider than an average boat beam.

Let Mike Watson answer that question. He owns and operates Mike Watson Welding. People near and far seek him out when needing the right boat for this style of fishing. The reason is limited access to fiberglass boats. Rock and glass don't mix and neither does the high performance handling of a conventional bass rig. Ott DeFoe can run this rig in about 3 inches of water.

That was the tall order issued by DeFoe. Watson answered the call with a boat that can run in about 3 inches of water, while gaining up to 8 mph in top-end speed with the tunnel closed. Watson spent around hours to make that happen. DeFoe proved where the big rigs couldn't go also had superb, unpressured largemouth fishing.

He won the Open on Douglas fishing from a tunnel hull. He was alone in the upper reaches of the French Broad River, where his biggest fish were largemouth. When running across the lake the tunnel is closed to create a flat running surface. Watson will win the race up the lake, but DeFoe will pass him where it matters the most. Running the length of the hull centerline is the tunnel. When opened up water is drawn into the tunnel and forced out to create hydrostatic lift of the hull.

Water exits in a plume at the stern and that is where the magic happens. How that happens is a fine-tuned setup of integrated hull setback plates and hydraulic lifts. Most anglers max out the latter option with two separate hydraulic lifts. The driver adjusts both hydraulic lift plates and the outboard trim to maximize running speed and boat depth. There are no gauges to monitor.

It's more like flying a small airplane. The ride up is better than coming back. Heading upstream the driver can steer around the downstream current breaks created by individual rocks. The hull gets a firmer bite for better boat control. Going back all that is lost. The boat is harder to steer and visibility is reduced. Still it's all worth it.

The allure of having unpressured access to trophy smallmouth water is a risk worth taking. In some remote waters there are no tournaments or publicity. Back in the glory days catching smallmouth was common. Watson can fabricate a boat or tunnel hull to fit the needs of anyone. A gallon livewell is amidships for better weight distribution. What's really cool is the rod locker. He specifically designed it to accommodate a full gear case.

Just in case. And those flip-flops in the photo? Those are to wear in case going overboard to change a prop or give the boat a shove off a rock are necessary. Special feature: To lighten the load he replaced the factory fuel cell with an gallon portable tank. For comfort he replaced the factory bucket seats with plush, ergonomic seats from a Nitro Z Skip to main content. Shape Created with Sketch. Tournament Home More. Tournament Home Close. Tunnel hull culture. Call it the tunnel hull culture of East Tennessee.

What possesses this bunch of daredevils to risk boat and gear with every trip? Its all part of the tunnel hull culture of East Tennessee. Here are details of the boats in use by DeFoe and Watson. Page views. See Photos. Inside DeFoe's winning boat See Photos. Final weigh-in at Douglas. Over the river with Ott. Join B. First Name Last Name Email.

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