Powerboat Designs for Sportfishing and Cruising

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Powerboat Designs for Sportfishing and Cruising

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Kitty Hawk 26

$600.00$9,000.00

A cold molded, Carolina-style center console.

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SKU: KittyHawk26 Categories: , Tag:

The Kitty Hawk 26 features a large cockpit with lots of room aft of the leaning post and equipped with downriggers for trolling. The 9′ beam leaves a nice space on either side of the splash well for an angler to work a fish around the aft corners of the boat. With the engine hung directly on the transom, instead of on a bracket, you should have no trouble fishing from the stern. Up forward there is a small casting platform with lots of storage underneath. The console is large enough to give protection from the weather and has space inside for a portable head. Forward of the console is a 128 qt. cooler with a cushion on top for additional seating.

Her hull design is a modified vee. The fine entry is over 48 degrees at station 1 and flattens to 12 degrees at the transom to promote efficient planing. For structural reasons and ease of construction, the chines do not have integral flats, but rely on external spray rails angled to throw the water and spray out and down. Her topsides flare in the traditional Carolina-style and there is quite a bit of tumblehome back aft. A quarter guard is mounted on the hullside aft to help protect the hull from docks and pilings. Her freeboard is a little bit higher than on many Carolina-style boats, especially back aft where the cockpit depth is 28″. Her cockpit sole is 6″ above the waterline back aft, so it should drain well even.

The Kitty Hawk 26 features cold-molded construction using 2 layers of 9mm Okoume marine plywood over longitudinal stringers and transverse frames. Her hull is covered with a layer of 1808 knitted biaxial glass set in epoxy. Keel, stem, side stringers, chine logs and clamps are all of laminated fir or mahogany. Her bottom stringers and frames are cut from 18mm Okoume marine plywood. The transom is three layers of 18mm Okoume with the stringers let into the inner two layers.

With her moderate deadrise and relatively light weight, a 225hp outboard should push her 32 knots. A 300hp outboard will give her a top speed above 37 knots. The Kitty Hawk 26 was not designed to be a high-speed kingfish boat, she was designed to be a conservative, seaworthy fishing platform. A twin engine option is available as well as a single engine, bracket option.

The Kitty Hawk 26 is available as both a Plan Set with full size frame patterns or as a CNC cut Frame Kit. The Plan Set includes 18 pages of drawings and 6 very large pages of patterns printed on plastic film to insure accuracy. The patterns were created from the CNC cut files and are a bit complex as they include all the cut-outs for the stringers, chines and clamp. Drawings include a strongback and a stem mold drawing for the laminated stem. The plans have also been converted to metric, for those of you outside the U.S.

The CNC cut Frame Kit includes both the permanent and temporary frames, longitudinal bottom stringers, the 3 layer transom and a building jig to help in setting the boat up. There is also a pre-cut form for laminating the stem to the correct shape. The Frame Kit includes 14 pages of drawings from the Plan Set detailing her construction, including hull and deck details and a machinery arrangement.

Whether you choose to build from the Plan Set or the Frame Kit, she will be a challenging project to build, especially in light of her size. If you are up for the challenge, I think she will make for a fine offshore fishing boat. The curvaceous hull of the Kitty Hawk 26 will stand out in nearly any harbor!

Weight 5 lbs
Dimensions 92 × 21 × 21 in
Plans

Plan Set with Patterns

Frame Kit

Frame Kit, No Frame Kit

Specifications

LOA: 26′-1 3/4″ (7.97m)
DWL: 21′-8″ (6.61m)
Beam: 9′ (2.74m)
Draft (Keel): 14 5/8″ (371 mm)
Displacement: 6,300 lbs. (2,858 kg)
Fuel Capacity: 123 gals. (465 L)
Deadrise: 12.5 degrees
Freeboard (Fwd): 55 3/8″ (1407 mm)
Freeboard (Aft): 33 1/2″ (851 mm)
Power: 200-300 hp Outboard
Speed: 37 Knots w/300 HP (Estimated)
Construction: Cold-Molded Okoume/Glass

FAQ

1) Can I power the KH26 with twin 150’s?

Yes! I have now modified the plans to allow for twin 4 cylinder outboards, up to 150 hp each. The KH26 was designed around a single Honda BF225 outboard with a weight of around 620 pounds. The 4 cylinder Yamaha F150 weighs about 491 pounds. That gives a weight of 982 pounds. This weight will put the stern of the boat down about 1 3/8″ deeper in the water. The bow will come up about 2 1/8″. This isn’t too bad and should work fine as long as you take care to not load the back of the boat down with other heavy loads, like a 50 gallon baitwell or your giant brother-in-law. Twin V6 outboards are too heavy and cause too much trim disturbance. I do not recommend them for this boat!

2) Can I install an outboard bracket?

Yes! I have now modified the plans to allow for a single engine up to 300 hp and 640 lbs. on a bracket. Twin engines on a bracket are too heavy and will cause too much trim disturbance. A bracket will move the weight of the outboard aft about 30″. When you calculate the trim disturbance of a weight, it is actually a moment measured from the Center of Buoyancy of the hull. If the outboard weighs 620 pounds, then we have an additional moment of 1550 ft/lbs. On the KH26 this will sink the stern down by about 5/8″ and the bow will come up about 1″. Not too bad and should work fine. Twin F150’s will put the stern down by almost 2 1/2″ and bring the bow up almost 3 3/4″. That is way too much trim disturbance and could lead to poor handling and poor low speed planing performance. Lets not even discuss twin V6 outboards on a bracket!

Study Plans

Study plans are available below as downloadable PDF files. Please remember that these plans are the property of Smith Marine Design and should not be used for any purpose without my written consent.

Profile and Arrangement

Machinery Arrangement

Inboard Profile

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