Design and Construction
The Concordia 40 is a solid-wood-hulled monohull of traditional long-keel configuration, displacing 18,000 pounds with 7,700 pounds of iron ballast—a ballast-to-displacement ratio near 43 percent that gives the yawl a settled, seakindly character. The deck is wood, and the 39.83-foot LOA with 28.5-foot LWL produces a displacement-length ratio of roughly 347, a number that places her firmly in the heavy, volume-bearing cruiser tradition rather than the light-displacement racer camp. Writing in one period assessment, the Concordia yawl was called as much a classic as any sailing yacht in the world for its beauty, its superb construction, and its racing success anchor. The first of the line, a 39-foot yawl named Java, carried a lean, shapely hull marked by a long cove stripe with a star at the bow and a crescent moon at the stern, a motif that endured as the distinctive star-and-moon cove stripe across the series.
Rig and Handling
The boat's yawl rig was not merely aesthetic. SAIL Magazine reported that a yawl rig was necessary for a better rating and to help keep her more stable riding at anchor anchor, a practical concession to both racing rules and everyday comfort at mooring. With 650 square feet of sail area and a sail-area-to-displacement ratio of about 15, the Concordia 40 is no light-air flyer by modern numbers, yet her flat, hard bilges provide form stability when the puffs come anchor, allowing her to stand up to gusts without dramatic heel. Owners have noted that the original 39-footers and the later 41-foot derivatives could race each other without handicap, a testament to how closely the enlarged version retained the original's proportions. The capsize ratio of 1.56 and comfort ratio near 39 further describe a yacht built for offshore work rather than coastal sprinting.
Accommodations
Below, the Concordia 40 was conceived as a livable cruiser with racing discipline. The galley stove was installed to starboard to be more user-friendly for right-handers, and the bunks had to fold up lest they become storage areas for wet sails during racing anchor. The water tanks were made removable for easier inspection and maintenance, and a separate head was provided from the outset. In the earliest Java, the interior with its knotty pine cabinetry and corduroy cushions recalled a New England home, a warmth carried through the class. Later 41-foot versions gained an added plank that increased volume and headroom, making the boat feel bigger belowdecks without altering the essential proportions.
Known Issues
The most documented vulnerability is the butterfly-wing skylight on the foredeck, which SAIL Magazine noted is pretty but prone to leaks when green water comes on deck anchor. A buyer or owner should treat that fitting as a maintenance priority, since deck leaks on a wooden hull invite structural concern if left unchecked.
Refits and Ownership
The class has proven unusually durable: of the 103 boats built, 102 are still extant. That survival rate speaks to both the quality of the original construction and the devotion of owners. Common upgrades observed on later boats include larger Barient primary winches and an electric anchor windlass, and some examples received a Yanmar 30 PS diesel in place of the original Gray Marine gasoline engine. The 41-foot sub-group, built in Germany by Abeking & Rasmussen between 1950 and 1966, numbers 24 of the 41-foot overall length, with 99 of the 103 total built at that yard.
The Verdict
The Concordia 40 is a wooden classic that earns its reputation through documented racing success, thoughtful cruising layout, and exceptional fleet survival. She is not a modern performance boat, but her form stability, yawl-rig versatility, and warm interior make her a singular choice for the sailor who values craftsmanship over composite convenience.
Pros
- Proven offshore racing pedigree with major ocean-race wins
- 102 of 103 hulls still extant, indicating durable construction
- Yawl rig aids stability at anchor and rating
- Flat hard bilges give reassuring form stability in puffs
- Removable water tanks and folding bunks show clever cruising design
Cons
- Wooden hull and deck demand constant maintenance
- Butterfly-wing foredeck skylight leaks under green water
- Original gasoline engine in many boats is dated and less safe than diesel









