Mount Desert Island OD Information, Review, Specs

Sailing Performance & Handling

The MDI OD is defined by its sea-kindliness and a "heavy-for-its-length" feel that provides exceptional stability. With a full keel and a displacement of approximately 3,500 to 4,000 pounds, the boat possesses a momentum that modern, light-displacement daysailers lack. This mass allows it to punch through the stiff afternoon southwesterlies common on the Maine coast without the excessive hobby-horsing or pounding found in flatter-bottomed hulls.

On the helm, the boat is known for its tracking ability. The long keel provides a directional stability that allows the skipper to trim the sails and occasionally step away from the tiller, a trait often cited in technical discussions by the Hamlin Design office. While not a "planing" boat, the MDI OD is surprisingly nimble in light air due to its relatively narrow beam (6' 3") and efficient sail plan. It lacks the "touchy" nature of a racing dinghy, offering instead a predictable heel that hardens up quickly as the lead ballast takes effect.

Interior Comfort & Variations

Despite its primary role as a racing class and daysailer, the MDI OD features a minimalist cuddy cabin that permits overnighting for a dedicated crew. The interior typically consists of two simple settee berths and space for a portable head or a small locker. Headroom is restricted, as is typical for a boat of this era with a traditional sheer line, but the cabin provides essential dry storage and a reprieve from the elements.

The model saw several variations over its production run. Original wooden hulls were often meticulously finished with brightwork and painted cedar planks, while later fiberglass versions, produced to maintain the "One Design" rating, offered a more utilitarian and low-maintenance approach. The MDI OD served as a more traditional aesthetic sibling to the "Controversy" series also produced at the yard, such as the Amphibi-Con, which featured radical reverse sheers and pop-top cabins for increased interior volume.

Popular Mentions & Media

The MDI OD is deeply entwined with the history of the Northeast Harbor Fleet, one of the most prestigious sailing organizations in the United States. While it often shares the spotlight with the larger 33-foot International One Design (IOD), the MDI OD has been the preferred training and racing platform for generations of Maine families. The class’s longevity is frequently celebrated in Maine Boats, Homes & Harbors, which chronicles the meticulous restorations required to keep the vintage wooden hulls competitive in modern club racing.

Known Issues & Buyer’s Checklist

Prospective owners of the MDI OD must distinguish between the vintage wooden hulls and the newer fiberglass iterations, as each carries distinct maintenance requirements:

• Horn Timber and Transom Rot: In original wooden hulls, the area where the horn timber meets the transom is a common site for freshwater rot. Buyers should inspect the wood for softness or "punkiness" behind the cockpit.
• Keel Bolt Integrity: The transition between the ballast keel and the deadwood is a high-stress area. Signs of "weeping" at the joint or rusted nut heads inside the bilge indicate that the keel bolts may require replacement.
• Deck-to-Hull Joint (Fiberglass): On fiberglass models, the mechanical fasteners at the deck-to-hull joint can loosen over decades of racing stress, leading to leaks that compromise the interior and potentially rot any plywood backing plates.
• Mast Step Compression: The wooden mast steps can compress or rot over time, leading to a loss of rig tension and potential structural damage to the cabin sole or keelson.

Community & Resources

The primary hub for the class remains the Northeast Harbor Fleet, which oversees the racing rules and maintains the historical registry for the MDI One Design. For those seeking technical guidance on restorations, the Mount Desert Island Historical Society and the MDI Community Sailing Center serve as vital repositories of information regarding the E. Farnham Butler era of design.

The Verdict

The Mount Desert Island OD is an elegant, seaworthy classic that excels in coastal chop and club racing environments.

Pros:

• Exceptional stability and sea-kindliness for a 24-footer.
• Timeless, traditional aesthetics that turn heads in any harbor.
• Strong community support and a deep historical pedigree in Maine.

Cons:

• Limited interior volume and headroom for cruising.
• Original wooden hulls require high-intensity maintenance schedules.
• Relatively heavy displacement makes it difficult to trailer without a dedicated heavy-duty vehicle.