Design Brief & Intent
The genesis of the Walloon Lake 17 lies in the work of William "Bill" Loughlin, a student of naval architecture at the University of Michigan and a founding member of the Walloon Yacht Club. In the late 1920s, Loughlin designed the Walloon Lake One Design—a 20-foot fin-keel sloop known simply as the "W" boat. Seeking to optimize performance under the emerging square-meter sail area rules of the 1930s, Loughlin lengthened the hull to 24 feet 9 inches while refining the sail plan to exactly 17 square meters, which translates to approximately 183 square feet of sail area.
This long, narrow, canoe-like design was engineered to minimize wetted surface area and slice through light, variable wind pockets with minimal drag. Unlike the heavily built pocket cruisers or robust coastal daysailers of its era, the Walloon 17 was designed with no interior cabin, no accommodations, and zero cruising amenities. It is a two-person racing vessel with a deep, open cockpit that places the crew low in the boat and in intimate contact with the water. Its narrow beam of just over five feet emphasizes hydrodynamic efficiency and aerodynamic penetration over interior volume. The joinery of the original wooden hulls reflected the premium standards of mid-century freshwater boatbuilding, utilizing Western red cedar and fine Honduran or Philippine mahoganies that gave the boat an exquisite, furniture-grade aesthetic matching the grand lakeside cottages of the region.
Sailing Performance & Handling
At the helm, the Walloon 17 behaves with the precision of a fine musical instrument. The boat's physical characteristics are highly illuminated by its design ratios. With a displacement-to-length ratio of 122.48, the hull sits firmly in the light-displacement, high-efficiency envelope. It requires very little wind energy to overcome inertia, accelerating immediately in whispers of breeze where heavier boats sit idle. This light weight is balanced against a powerful sail plan, as indicated by its sail area-to-displacement ratio of 21.4. This high ratio provides the horsepower necessary to drive the narrow hull through the tricky, shadowed wind zones created by the lake's high, wooded shorelines.
Despite its lightweight hull and high-aspect rig, the Walloon 17 exhibits surprising stability. Its capsize screening formula of 1.2 is exceptionally low for an open-cockpit racer of this size, pointing to highly stable, self-righting behavior under sail. This safety margin is achieved by carrying a heavy, fixed keel ballasted with 850 pounds of cast iron or lead—representing a ballast ratio of over 50 percent of the boat’s 1,600-pound total sailing displacement. Under sail, this deep ballast acts as a powerful lever, allowing the narrow 17 to stand up to sudden gusts rolling off the hills.
Its comfort ratio of 23.14 indicates a motion that is active and highly communicative; the boat rides over waves and wind-driven lake chop with quick, athletic responses rather than dampening the motion. For the helmsman and crew, sailing the 17 is a physical and deeply engaging experience, requiring active weight distribution and constant sheet trim to maintain optimal heel and speed in shifting inland lake thermals.
Construction & Class Evolution
The physical construction of the Walloon 17 spans two distinct eras: the classic wooden age and the modern fiberglass transition. The early fleet was built exclusively in wood. The first three hulls, built by Loughlin and Henry Cawthra, were planked in Western red cedar. When Ted McCutcheon, Sr. acquired Loughlin's business in 1938, he standardized the construction using mahogany—specifically Honduran mahogany for the boat numbers and Philippine mahogany for the planks, built over steam-bent frames. These early wooden boats also featured elegant, hollow Sitka spruce masts, which were crafted by split-milling spars, hand-hollowing the centers, and gluing them back together to create a lightweight, beautifully tapered mast rising nearly 30 feet.
By the late 1960s, the punishing effects of freshwater rot threatened to extinguish the aging wooden fleet. In 1970, passionate class sailor Sally Randall Swanson, alongside her husband Bill Odom and partners Betty and Stuart Gould, established Seventeens, Inc. to pioneer a fiberglass version. Securing permission from the Walloon Yacht Club, they used an existing McCutcheon-built wooden hull as a plug to pull a mold, ensuring the fiberglass boats retained the exact hydrodynamic lines and weight distribution of their wooden predecessors.
This preservation effort was later expanded by Harvey Schach, who commissioned subsequent fiberglass hulls from an Ohio builder. Over its entire history, only 42 hulls have been built. This transition not only saved the class from extinction but also created a fascinating dual-era fleet where wooden and fiberglass boats continue to race side-by-side under strict one-design rules, demonstrating the timelessness of Loughlin’s original shape.
Maintenance, Preservation & Triage
Owning and operating a Walloon 17 demands a dedication to historical preservation, particularly for the remaining wooden hulls. Because only approximately 31 boats of the original 42 remain in existence, parts are entirely non-standard 2. The original aluminum and iron keel castings were poured at the historic East Jordan Iron Works, meaning any modern drivetrain, keel, or rudder repairs require bespoke custom fabrication.
For wooden hulls, the primary triage routine involves checking for dry rot in the mahogany planking, steamed oak ribs, and the structural keel timber. Decades of seasonal thermal cycling in Northern Michigan’s climate mean these wood structures require continuous varnishing, paint maintenance, and controlled winter storage to prevent structural shifting. The hollow Sitka spruce spars are another high-maintenance area, prone to glue-line failure and water intrusion if the varnished seal is compromised.
For the fiberglass versions, structural concerns are significantly reduced, but owners must still monitor the deck-to-hull joints and the load-bearing areas around the chainplates and mast step. Because these boats are kept in freshwater lakes and hauled out for freezing winters, check for osmotic blistering in the gelcoat and rot in any wood-cored structural bulkheads or floor timbers. The class's preservation is heavily supported by the non-profit Walloon 17 Foundation, which recently purchased the official fiberglass molds and works alongside local yards, such as Irish Boat Shop, to facilitate professional restorations and ensure that parts and technical expertise remain available to the fleet.
The Verdict 1
The Walloon Lake 17 is a rare jewel of American yachting history, a living artifact that has survived nearly a century due to the fierce loyalty of a single lakeside community. It is not a boat for the casual cruiser, the blue-water adventurer, or the sailor seeking weekend accommodations. Instead, it is an exquisite, highly responsive racing machine designed to deliver pure sailing joy in the most challenging of inland lake conditions. Whether in restored mahogany or modern fiberglass, the 17 offers a level of helm feedback and aesthetic elegance that few modern mass-production daysailers can match. For those lucky enough to secure one of the few surviving hulls, owning a Walloon 17 is less about transport and more about stewardship of a legendary maritime art form.
Pros
- Exquisite, timeless aesthetic with classic canoe-like hull lines that draw admiration on any waterfront.
- Highly responsive sailing characteristics that excel in light, variable breezes.
- Exceptional stability for an open daysailer, carrying a high ballast ratio that makes it highly resistant to capsizing.
- Active, passionate one-design class support via the Walloon Yacht Club and the Walloon 17 Foundation.
- Dual-material class rules that allow classic wooden and modern fiberglass hulls to compete on equal terms.
Cons
- Strictly a day racer with zero interior accommodations, berths, or cruising amenities.
- Extremely scarce on the open market, with a fleet confined almost entirely to a single lake in Northern Michigan.
- High maintenance demands for wooden hulls, requiring specialized woodwork and protection from dry rot.
- Bespoke, non-standard hardware and rigging that often require custom fabrication or specialized restoration services.
- Not suited for heavy ocean swells or rough offshore sea states.






