Marsh Wren Design Notes

The Marsh Wren was designed at the request of one of our Nancy’s China customers. He was ready to graduate up from the smaller Nancy’s China and was no longer interested in a boat that had a cabin and sleeping accommodations. His family had grown and his children were now high school and college students and his wife now had many distractions in her life and so my friend was left without his traditional crew. His career at the point where he didn’t have much extra or spare time for sailing anyway! Most of his sailing adventures were relegated to slipping away from the dock for a few hours on a weekday evening just after work. If he was organized enough, he would stop to buy a sandwich at a local delicatessen and could sail on through the dinner hour returning to the dock just before or just after dusk. But nevertheless, sailing was still important to his life. Without the need for overnight accommodations, he opted for a boat with a larger cockpit, one that allowed the crew to spread out (when he had crew) and yet easily sailed alone if that was the way things shaped up. He loved the character and distinctiveness of the Nancy’s China and wanted to retain that flavor in the new boat.

So off to the drawing board I went and with pencil in hand, I came up with a new design that I felt would work for his needs. I used as a model my old Winter Wren design but drew the new boat out a little longer. Increasing the length from 18’8″ on deck to 20’2″ on deck, the new design looked better and hydrodynamically had a better run aft thru the water. One of the problems the Winter Wren had when she was overloaded with too many people in the cockpit was dragging her stern in the water, creating drag and wasting some of the power of the wind. But with the new design, moving the center of gravity forward of the ballast and crew helped to come up with a faster boat that would balance well with a single person sailing or with a crew of up to 6 people on board. I felt the same Gaff rig similar to the Winter Wren to be the best option as it sails very effectively close-hauled and off the wind, is actually much more efficient than a conventional Bermuda sloop. The Gaff also helps play to the distinctiveness that my customer had requested be retained.

The final result is a splendid sailor with a very balanced and light helm. The tiller just takes mere fingertip control and she sails so well as to literally negate the need for an auxiliary engine. I found by the second sail that I was sailing into complicated moorings with ease, docking in a variety of winds and tide conditions. It had been a long time since I could remember enjoying simple daysails so much.

Of course not long after building the first boat, someone came along wanting to place a cabin on the boat, so I finished the plans for either the original daysailer (long cockpit) version and for a more conventional cabin version. Either should be a delight to sail and spend time with. — Sam Devlin

Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Bullfrog 20

Bullfrog20Plan1Some people love to fish. It’s a great pastime and a wonderful way to spend time on the water.  As for me, I do quite a bit of fishing myself, except I spend my time trolling for customers.  It is more than a little mystery to me what new type of boat will come into fashion in this sometimes crazy world.  Even in my own life it occasionally feels a bit like being inside a tornado, and even I get a little confused as to what type of boat would suit me best.

Here is our little Bullfrog 20 and she would be a great boat to spend some time on fishing, pottering about on the water, and you could even do a bit of an extended cruise in her, something like a quick trip up into Canada or even all the way to Southeast Alaska.

Features are a high volume boat with plenty of knee room in her cockpit.  Full headroom in a standup head compartment in the flying bridge model.  She features a really nicely usable cabin area in her in both models, with good space use and lots of places to stow gear.  She is very trailerable and would move very nicely with a 90 or 115hp outboard.

Running out over the bar at the coast for a day’s fishing would be one of the major uses of the little Bullfrog 20 and when you’re musing over the her potential, imagine her about 4 ft. longer. Now that would be a really neat dream. – Sam Devlin

The Bullfrog 20 is available in study plans. Talk to Sam if you would like to see her developed into full construction plans.

Bullfrog20Plan2

Bullfrog 20 Specifications

Length 20 ft. – 3 in.
Beam 8 ft. – 5 in.
Draft 20 in.
Power Outboard 90-115hp
Displacement 3600 lbs.
Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Sea Bug 20

SeaBugFrontThe Sea Bug is an adaptation of the Chinook Launch and the Sea Chaser. The latter was commissioned by a Bermudian whose priority was fishing. The Sea Bug continues with this idea in a more compact form. The spacious cockpit allows unobstructed movement for those times when a big fish can’t decide which side of the boat he wants to be on. A central engine box provides a convenient place to sit and wait for the drag to take off. I’ve specified a straight-shaft diesel inboard to drive this displacement hull, though a gasoline engine could be used as well. A removable tiller on an outboard rudder enables a singlehander to leave the wheel helm; especially useful when trolling. The oversized windscreen gives excellent protection from spray and folds down flat for calmer days. A small cabin forward has enough room for a modest berth and a portable head (You’re welcome, ladies). This boat is well-suited for a bimini, t-top, or even a lightweight hard top. The handy little Sea Bug will have an easy motion through the water and I suspect it will be almost as irresistible to fish as to fishermen. – Sam Devlin

The Sea Bug is available in study plans. Talk to Sam if you would like to see it developed into full construction plans.

SeaBugTopSeaBugSide

Sea Bug 20 Specifications

Length 20 ft. – 6 in.
Beam 8 ft. – 0 in.
Draft 24 in.
Power Inboard Diesel or gasoline
Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Curlew 20

Curlew20_3wayThe Curlew 20 is a new design done as a very simple and approachable powerboat capable of being the perfect companion to adventures on the water. Originally designed for Florida waters, I think she would fit in just about anywhere. Built as an open boat, a variety of other concepts and options can be worked into this relatively simple hull, all of them allowing the builder and boatman to tailor this vessel to suit their own needs and desires. She is on the narrow side being very similar to the Pangas of Mexico and the Caribbean that I am very familiar with. As a fishing boat on the bonefish flats, she really shines with a casting deck built into the forward area of the boat where you have plenty of room to keep your feet under you while standing up to cast into the clear waters.

Power can be up to a 90 horsepower outboard but keep in mind this hull does not need a lot of horsepower to be driven economically at a good clip over the water. There is a center console arrangement that helps keep the helmsman in an area of the boat with excellent visibility and control.

To understand the Curlew 20 in greater detail, read Sam’s design notes.

The Curlew 20 is available in study and construction plans.

Curlew20Top

 

Curlew 20 Specifications

Length 20 ft. – 1 in. LOD
Beam 6 ft. – 3 in.
Draft 8.5 in. outboard up
Displacement 1600 lbs.
Power Outboard up to 90hp
Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Curlew 20 Design Notes

This is a new design done as a very simple and approachable powerboat capable of being the perfect companion to adventures on the water. Originally designed for Florida waters, I think she would fit in just about anywhere. Built as an open boat, a variety of other concepts and options can be worked into this relatively simple hull, all of them allowing the builder and boatman to tailor this vessel to suit their own needs and desires. She is on the narrow side being very similar to the Pangas of Mexico and the Caribbean that I am very familiar with. As a fishing boat on the bonefish flats, she really shines with a casting deck built into the forward area of the boat where you have plenty of room to keep your feet under you while standing up to cast into the clear waters.

Power can be up to a 90 horsepower outboard but keep in mind this hull does not need a lot of horsepower to be driven economically at a good clip over the water. There is a center console arrangement that helps keep the helmsman in an area of the boat with excellent visibility and control. The cockpit deck is self-bailing if you keep her on a mooring with the sole being 3 inches above the loaded waterline. Plugging the scuppers when carrying a load of friends on an outing is a simple solution to keeping the cockpit sole low enough to still keep you in the boat when fishing. There is 17 inches of height from the cockpit sole to the top of the side decks in the main cockpit area which is 11 feet 3 inches in length and almost 5 feet wide. The forward casting deck is over 4 feet in length and almost 5 feet wide at its widest point and stands up 14 inches higher than the main cockpit sole.

For seating in a boat like this I really prefer to use loose folding type chairs. West Marine sells a wonderful seat called the Kingfish II that has built in armrests and with its low stance, it stays put in any kind of waters and conditions. I like these seats so well that I keep a couple of them on the stern deck of my old salmon troller “Josephine”. On the Curlew we can also sit on the 6 inch wide side decks if we desire the 17 inch height of the railing above the cockpit deck which is just about the perfect height for seating.

Construction is our normal Stitch and Glue method with hi-grade marine plywood used throughout combined with epoxy resin and fiberglass and Dynel cloth sheathing for abrasion resistance. Paint her a light color with a gray or beige colored decking and she will keep well and look clean and shipshape for a long time. This Curlew 20 would be the perfect workboat, capable of doing just about any job required of her. Construction is straightforward and easy with her 4 paneled hull.

This type of hull design with her vee bottom running from a relatively sharp entry and reducing in deadrise gradually to the stern where the deadrise aft is the flattest of the run allows for great performance in a variety of waters. We ran a full length spray rail all along her sides just above the waterline and this will help keep spray down when blasting about on a brisk day. It is very easy to see myself beaching her on a sandy beach after a morning on the water with my fly pole and hopefully a couple of bright fish in the cooler staying fresh until I kindle a fire on the beach for their grilling. A couple of cold beers in my belly and some very tasty grilled fish makes for the conclusion to a great day. I hope you can see yourself in the same picture or even better make your own picture for the Curlew and you.

We are offering the building plans set at $125 dollars for the download version and $155 for a paper set printed for you. There are 7 sheets of drawings in the set total with panel expansions done for you and everything designed for the stitch and glue building method. She is planked up with ½ inch marine plywood in her single chined hull, set-up drawings are done for you and this is a very easy boat to build. With about 450 hours of labor and few thousand dollars of marine plywood and epoxy, you will be ready to use her in your own dreams. — Sam Devlin

Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Lichen

LichenBeauty2The goal with Lichen was to develop a smaller-sized sailboat (20 feet) able to comfortably cruise the backwaters and bays of the Northwest without excessive concern for draft. This vee-bottomed hull design is an answer to the challenge. The shallow draft can still yield a roomy comfortable interior suited for extended cruising. The Lichen features a retractable centerboard that draws 38″ down and just 17″ up, making shallow water navigation a snap. The shallow water draft combined with the medium light displacement (2500 lbs.) and moderately narrow beam, 7’8″, helps achieve another goal — trailerability.

On the water, Lichen has a very traditional look. The large barn door rudder and large open cockpit combined with her 237 sq. ft. gaff rig set the scene for outstanding versatility in a pleasing package. The mast is on a tabernacle, folding easily up or down, another plus when trailering.

Under sail Lichen is quite stable and sails well in a variety of wind and waves. It has always amazed me that these pram-bowed hulls sail as well as they do.

Interior accommodations include a large forward double berth, followed by opposing settee berth (centerline table attached to the centerboard trunk folding down to make even more bunk area.) To port is the galley, complete with ample workspace and storage, leaving the counter space uncluttered and visually pleasing. To starboard is a built-in wood stove serving as heater and dryer for wet gear. The portable head is under the companionway step. The most striking characteristic of the interior is the feeling of space and the visual freedom the large ports give you to view the beautiful scenery outside. — Sam Devlin

The Devlin Lichen is available in study and construction plans.

LichenSideLichenTop

 

Lichen Specifications

Length 19 ft. – 7 in. LOD, 26 ft. – 1 in. LOA
Beam 7 ft. – 8 in.
Draft 1 ft. – 5 in. / 3 ft. – 8 in.
Displacement 2300 lbs.
Power Outboard 10hp
Sail Area 237 sq. ft. tabernacle gaff
Ballast 850 lbs.
Max Load 1400 lbs.
Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Sea Swift

SeaSwiftBeautyTallThe protected waters of the Northwest offer a myriad of uses for a boat like Sea Swift. She has the stable sea-worthy qualities inherent in the dory, along with the strength-to-weight capabilities, ease of maintenance and cost effectiveness of stitch-and-glue construction.

This small, open boat is more than a fair cruising vessel. With the camping kit of the average backpacker, this cruiser can cook, eat, sleep and sail in fine fashion. In the dory tradition, she likes to sail on her ear, scary to some, exhilarating to others. Keep in mind that though initial stability is low, final stability is high, as exemplified by the use of the dory for fishing in rough waters throughout history. We have chosen the spritsail cat-ketch rig with its low center of effort to keep the heel to a minimum. When under sail she foams right along, on her ear, of course. Sea Swift was designed with these uses in mind, whether day-sailing or cruising, she is a well behaved, responsive boat.

— Sam Devlin

The Sea Swift is available in study and construction plans.

 

SeaSwiftBeauty

SeaSwiftPlan

Sea Swift Specifications

Length 19 ft. – 3 in. Overall
Beam 5 ft. – 5 in.
Draft 3 ft. – 6 in. Dagger Board Down
Power Oars
Sail Area 126 sq. ft.
Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Winter Wren II

WinterWrenIIBeauty2This boat is designed to be the ultimate in a pocket yacht with a tidy 176 sq. ft. sail plan. The Bermuda rigs mast steps on the cabin top and is easy to raise and lower. Winter Wren II has been designed from the ground up for trailering. Her hull has 685 lbs. of internal ballast and she sails stiff and stable. A very efficient dagger-board configuration is used for the lateral plane and Winter Wren II draws only 1’1″ of water when retracted and 3’6″ when extended. The dagger board trunk is in the cabin forming the edge of the galley. With the board raised, Winter Wren II is beachable and sits low on her trailer. With the dagger board down, Winter Wren II is a fast and responsive sailer. Her helm is very nearly neutral and the lightest of touch is required for instant response. She will easily sail through 90 degree tacks to windward, and off the wind, the Bermuda rig provides excellent performance.

WinterWrenIISlipA large and comfortable cockpit that is separated from the cabin by a bridge-deck will accommodate four adults in comfort. Both cockpit seats are 66″ long so that on nice nights you can sleep out under the stars.

We have designed a highly efficient, trailerable boat from the base of our popular Winter Wren and offer this new version as an option to the sailor who needs to keep his cruiser at home when not out voyaging.

— Sam Devlin

The Winter Wren II is available in study and full construction plans.

 

Winter Wren II Specifications

Length 18 ft. – 8 in. on deck 22 ft. – 7 in. Overall
Beam 7 ft. – 1 in.
Draft 3 ft. – 6 in. Dagger Board Down
Power Outboard 2hp – 4hp
Displacement 1800 lbs.
Sail Area 176 sq. ft.
Max Load 1250 lbs.
Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Winter Wren

WinterWrenSideElegance in a small package, the Winter Wren is perfect for the cruising couple. She is trailerable behind small cars, yet spacious enough for extended cruising. For daysailing Winter Wren has comfortable seating and accommodations for four sailors. The cabin is well-organized for comfort and efficiency. The double berth is forward, seat to port and the galley to starboard. There is room for a perky wood stove and cedar bucket for a sink or head.

Two cockpit configurations are available. For sheltered waters, an open, water-tight cockpit with comfortable seating on each side is offered. For off-shore work the cockpit is flush decked with a 24″ x 36″ hatch set next to the companionway. In fair weather the hatch is open and serves as a foot well. In rough weather, batten the hatch and you have a self-bailing cockpit that still has 14″ high seat back rests.

The Winter Wren carries her 195 sq. ft. gaff rig gracefully and has proven herself the equal of boats in her size range. She sails through 90 degree tacks to windward, and off the wind, the gaff rig provides unexcelled performance. The helm is well-balanced and invites the sailor to enjoy a variety of wind and sea conditions.

The Winter Wren is a beautiful boat that will turn heads and capture spirits wherever she sails. — Sam Devlin

The Winter Wren is available as study and construction plans.

WinterWrenTop

Winter Wren Specifications

Length 18 ft. – 8 in. on deck 22 ft. – 7 in. Overall
Beam 6 ft. – 10 in.
Draft 2 ft. – 6 in. full fixed keel
Power Outboard 4hp – 6hp
Displacement 1800 lbs.
Ballast 700 lbs.
Sail Area 195 sq. ft.
Max Load 1250 lbs.
Share This:
Facebooktwittergoogle_pluspinterestlinkedin

Wompus Cat

WompusCatSailSideSailing a boat like the Wompus Cat is simplicity itself. She has just a single mainsheet and tiller to tend, yet with her wide beam she is capable of sailing fast and flat. Her generous cockpit offers plenty of room to bring friends without getting in each other’s way. In the cabin, there is plenty of room for comfortable and livable space, which is quite a trick in boat this size. The Wompus Cat is trailerable, and her draft allows her into shallower waters in your explorations. It’s hard to find an easier path to a full featured sailboat.

Read about the thought that went into the Wompus Cat in Sam’s design notes.

The Wompus Cat is available as study and full construction plans.

WompusCatTop

Wompus Cat Specifications

Length 18 ft. – 10 in.
Beam 8 ft. – 1 in.
Draft 2 ft. – 6 in. draft board
Power Inboard Diesel 10hp
Displacement 530 lbs.
Sail Area 238 sq. ft.
Share This:
Facebooktwittergoogle_pluspinterestlinkedin