dark harbor sailboat plans

Dark Harbor 17 by BB Crowninshield

Like her smaller sister, a “Seventeen” is a pure sailing machine of great beauty, but she is enough larger to offer considerably more comfort through a larger cockpit well and a small cuddy cabin.  Low freeboard combined with a wide, self-bailing cockpit well that seats you “down in” the boat, put you very close to the water.  The lovely, slender hull lines, long ends, deep draft and large rig provide wonderfully sweet “feel” in this powerful, fast, wet, responsive and handy boat.

The beautiful round-front cabin trunk charmingly evokes the possibility of sleeping aboard, and indeed, some hardy souls have done extensive cruising in Seventeen’s. The cuddy is just big enough for two narrow berths, and has minimal headroom, but the cockpit well will sleep two people in fair comfort under a boom tent, if desired. Mostly the cuddy serves as storage space, shelter in a rain squall, and a bit of privacy when desired.

There are larger boats of similar character described elsewhere on our website, but a Seventeen is probably the smallest design that offers such a fine and elegant sailing experience. Seventeen’s are still raced in our area, and a test sail can usually be arranged during the season.

Click here to view images of Dark Harbor 17,   Frolic

Click here to view images of Dark Harbor 17,   Phoenix

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A Vintage Knockabout Design Finds New Life

The Camden Class,  designed in 1915 by B.B. Crowninshield, is a variation from a time when so-called knockabouts were all the rage. It could be argued that these and Crowninshield’s other elegant but simple dayboats represent the foundation of the one-design concept.

Only four of the Camden Class boats were built back in the day, and the design, which was intended as a racing fleet for the Camden Yacht Club, was supplanted at the club by the Haj boats. But the elegant design has had many admirers, including a man who started to build one on his own and has since handed the project off to Alec Brainerd’s Artisan Boatworks of Rockport, Maine.

The boat nearing completion in Brainerd’s shop was begun 15 years ago in Birmingham, Alabama. The builder, Dr. Marc Starer, had recently moved there from New England. “The people there were great, but otherwise I was homesick,” he said. “I missed the seacoast, and sailing. I thought what I needed was a nautical project.” A subscriber to WoodenBoat , he perused the boat plans they offered for amateur builders, and noted designs for three Crowninshield knockabouts: the Dark Harbor 17.5, the Dark Harbor 12.5, and the Camden Class 17.  He chose the Camden Class because he “particularly loved its looks.”

As with many a backyard boat project, this one dragged on for a number of years. Starer returned to Massachusetts, towing the half-finished boat with his U-Haul. Eventually he decided the partially built hull either needed to be scrapped or rescued by a new builder.

Enter Brainerd. Starer met him at a boat show where Brainerd was standing in front of another turn-of-the-century wooden daysailer design—a Watch Hill 15 built at Artisan—and the two got into a conversation. Brainerd revealed that back in his youth, when he was first thinking about becoming a boatbuilder, he, too, favored the Camden knockabout as an ideal first boat to build.  He had seen the ads for plans in the back of WoodenBoat . Why did he fixate on that design? He liked its looks.

When he started out as a boatbuilder, one of Brainerd’s first orders was for a Dark Harbor 17.5. He rebuilt a couple more, and has since branched out into repair and maintenance, as well as specializing in building classic wooden boats. But he never lost his desire to build a Camden Class knockabout. Starer, realizing that he’d found his builder, moved his project from western Massachusetts to West Rockport, Maine.

So what exactly is a knockabout?

Prior to around 1890, yachtsmen raced unique individual designs, each man using his pocketbook to try to vanquish all comers. It was common knowledge that longer boats had the advantage for speed, so in order to make the sport more fair, boats were grouped by size, usually based on waterline length. These boats were low, with flattish sections, hard bilges, and prominent overhangs. Going all-out to win cash prizes and private wagers, they tended to be crewed by heavyweights. Their oversized gaff rigs required short bowsprits, and, in some instances, boomkins to anchor the main sheet.

By the advent of the 20th century, yacht clubs were springing up in privileged enclaves along the Eastern seaboard, including in Maine. Within these various clubs, members began to realize that afternoon races would be more fair, and the boats less costly, if they sailed identical boats, kind of like the Model Ts coming off Ford’s new assembly lines. Yacht historian Maynard Bray argues that this “early desire for equal boats was much more about getting a bargain than it was about fair racing.”

Many clubs concentrated their efforts on compact, versatile boats, good for training or racing, with shelter allowing for two persons to camp overnight. These were the stipulations that defined a “knockabout.”

Members of clubs along the East Coast were ordering this style boat—low-sided, long-ended, and gaff-rigged but without a bowsprit, sporting a “self-tacking” club-footed jib and a short, humped cabin—in batches. Notable designers included Starling Burgess, Nathanael Herreshoff, Clinton Crane, and Bowdoin Bradlee Crowninshield. Crowninshield was prolific. His output ranged from Gloucester fishing and racing schooners to the America’s Cup contender Independence , and the astounding, nearly 400-foot-long, seven-masted schooner Thomas W. Lawson .

In 1908 Crowninshield was commissioned by the Manchester (Massachusetts) Yacht Club to design a true “one-design” class. (It was his design number 381.) He had the good sense to head to Maine to seek a boatbuilding yard with deep experience and hard-nosed cost control. Rice Brothers, of East Boothbay, Maine, built a first batch of 12 boats for $500 each, and they were so popular that more followed. Eventually many more of these 17.5-foot waterline boats were built for several different yacht clubs; oftentimes named after their home harbor. The design is now commonly known as the Dark Harbor 17.5. Crowninshield made small changes to the design between clubs, but all the boats were equally fast and attractive. Examples were scattered from Islesboro to North Haven and Bar Harbor.  How could the startup Camden Yacht Club fail to take notice?

Founded in 1906, the Camden Yacht Club was looking around for a suitable racing class. William J. Curtis and his family spearheaded the idea of a new knockabout fleet. His son William, Jr. conspired with Crowninshield to come up with something different by more than just small details from the ubiquitous 17.5 waterline knockabouts already racing. The design they came up with in 1915, the Camden Class, was a half-foot shorter on the waterline, six inches beamier, and had longer overhangs that extended the overall length from 25'10" to 28'3". Most noticeably, the sail area was increased by 40 square feet. The price charged by Hodgdon Brothers in East Boothbay was $770 per boat, including five full sail bags.

Four Camden Class knockabouts were built, and a 1916 edition of The Rudder magazine claimed they were “very successful.” There is no evidence that this group ever raced against the Dark Harbor knockabouts. However, at the 100th anniversary knockabout rendezvous at North Haven a few years back, the one surviving Camden Class sloop, now owned by the Cabot family on North Haven, competed against the other 17s. It did not win—but it was clearly not geared up for racing.

By the 1930s, the Camden Yacht Club switched gears and voted to acquire a fleet of European-designed and -built Haj boats. The four gaff-rigged knockabouts disappeared, with the exception of the Cabots’ boat and a basket-case aptly named Gone Away that is now in repose behind a Rockport boatshop.

All this brings us back to the Camden knockabout under construction at Artisan Boatworks. Brainerd has found places where Starer’s hull didn’t perfectly comply with the blueprints, but generally it was a credible start. Since the boat has been in the Artisan shop, the sheer and deck have been beautifully faired under the uncompromising eye of a pro, and the steam-bent cabin sides and coaming are beyond lovely. The cabintop beams were just beginning to be installed when I visited this spring. The boat will have a comfortable deep cockpit, which is a contrast with the Dark Harbors, most of which have shallow self-bailing cockpits.

I found it fascinating that the line of the stem seems to have been purposefully designed by Crowninshield with a slight bend so as to shorten the waterline. One might think this was intended to minimize the rating. It could also have been a result of Crowinshield’s experiments with concepts intended to minimize wetted surface, according to Maynard Bray.

The new Camden Class knockabout, to be named Starship , is scheduled to be launched this summer in Camden. Perhaps some of the Dark Harbor 17.5’s will be around to race it. 

No matter the result, it won’t be a case of one boat winning and one boat losing. It will be a case of two of the most perfect knockabouts in the world sharing the same space and time. 

Contributing Author Art Paine is a boat designer, fine artist, freelance writer, aesthete, and photographer who lives in Bernard, Maine.

Camden Class

LOA: 28' 3" LWL: 17' Beam: 6' 9" Draft: 4' 3" Sail Area: 350 sq. ft. Displ: 3,743 lbs.

Designer: B.B. Crowninshield

Builder: Artisan Boatworks 416 Main St., Rockport, ME 207-236-4231 www.artisanboatworks.com

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20' Dark Harbor 12 1/2

Description.

20" LOA carvel-planked open daysailer.

Designed by B.B. Crowninshield

LOA - 20' 2" LWL - 12' 5" Beam - 5' 4" Draft - 3' 2" Displ. - 1,923 lbs. Sail Area - 210 sq. ft. Construction: Carvel planked over steamed frames Lofting is required Skill level: Advanced Plans include 4 sheets, plus 1 page of additional notes from the designer.

Customer Reviews

Just finished the spas and painting the hull

this set of plans does not include a specifications list for the dark harbor 12 1/2. so you will be guessing on a number of things like how much lead or iron do i add to the keel as no weights are available with the plan. only people who builds boats on a daily biases should attempt to build this as no explanations for fittings are included for :keel,stem,transom knee,fin,floors,rudder tube and a great deal of other things. i would definitely call before ordering a set of advanced plans to make sure materials list is involved if you are building boats for the first time. i decided that i would make this my first boat to build despite never building one before because I like challenging myself and learning new things, of course this would be a multi year build along with reading a bunch of books on boat building, however there are no fine building details for a boat like this(i was really in love with this one too because it's a mini j class!) so I think I'm going to move back a little and try the marshcat 15 or the haven 16 or melonseed 16 instead as these boats have complete plans.

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On the Newstand and Digital Library Now - November/December Issue No. 301 Preview

November / December 2019

Building a dark harbor 171⁄2.

An oval coaming that transitions into the cabin sides, combined with sprung teak deck planking, lends an air of elegance to the Dark Harbor 171⁄2 KOTIMANA. She was built at the Northwest School of Wooden Boatbuilding in Port Hadlock, Washington.

The first phase of the Dark Harbor 171⁄2 project at the Northwest School of Wooden Boatbuilding involved building KOTIMANA’s hull and deck on two separate construction jigs. This took about four months and was recounted in Part 1 of this series (see WB No. 270). After the hull and deck structure were successfully fastened together and the final four strakes of planking were hung, the students got to work preparing to build the deck, coaming, cabin, interior, and spars and also to install her rigging and hardware.

The original 1908 plans for the Dark Harbor 171⁄2, designed by B.B. Crowninshield, called for the deck to be built of tongue-and-groove white pine sheathed in canvas, which in those days was typically bedded in white lead paste. KOTIMANA’s owner, however, requested a deck of teak planking glued over a subdeck of 3⁄8 " okoume marine plywood. This method of construction not only provided better strength than the original but also gave the boat the incredible beauty that a sprung teak deck adds to any classic yacht.

Before installing the plywood subdeck, we added blocking to support the port and starboard panels where they would butt together at the deck centerline, as visible in the photo. We also installed blocking in way of the foredeck hatch, chainplates, mast partners, and deck-mounted hardware.

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