The Controversy 27 stands as a defiant mid-century testament to the "Light Displacement" movement, a design philosophy that once sparked heated debate—hence the name—among traditionalist naval architects. Designed by the formidable duo of E. Farnham Butler and Cyrus Hamlin, and primarily built at the Mount Desert Yacht Yard in Maine, the 27-foot model refined the concepts first introduced in the slightly smaller Controversy 26 and the trailerable Amphibicon. While most offshore cruisers of the 1950s and 60s relied on heavy, full-keel hulls to provide stability, the Controversy 27 utilized a long waterline and a distinctive reverse sheer to provide internal volume and buoyancy without the weight penalty. This approach allowed the vessel to achieve impressive speeds for its era while remaining manageable for a small crew. As detailed in the historical archives of Maine Boats, Homes & Harbors, these vessels were revolutionary for combining a lightweight strip-planked construction with a hull form that prioritized efficiency over raw mass.
Controversy 27 Information, Review, Specs

- Make
- Controversy
- Model
- 27
- Builder
- Mount Desert Yacht Yard
- Designer
- E. Farnham Butler
- Number Built
- Production Year(s)
- 1960 - ??
Sailing Performance & Handling
Under sail, the Controversy 27 is characterized by its nimbleness and surprisingly high "big boat" feel. This is largely due to its high Displacement-to-Length ratio compared to its contemporary rivals; by keeping the ends short and the waterline long, Butler and Hamlin maximized the theoretical hull speed. The boat tracks with precision, a trait often attributed to the well-balanced sail plan and the hydrodynamic efficiency of its refined underbody.
The reverse sheer, which curves upward toward the midships rather than the bow, is not merely an aesthetic quirk; it provides significant reserve buoyancy when punching through a head sea, keeping the deck remarkably dry. Owners often report that the boat remains "on its feet" longer than expected, though like all light displacement boats of this vintage, it requires timely reefing to maintain optimal heel angles. The handling is tactile and communicative, making it a favorite for those who enjoy the "seat-of-the-pants" feedback of a sensitive wooden hull. While some versions were built with a fixed keel, many featured a weighted centerboard, allowing for exceptional performance upwind while granting access to the shallow gunkholes of the Maine coast or the Chesapeake Bay.
Interior Comfort & Variations
The "Controversy" design philosophy truly shines when stepping below deck. By utilizing a reverse sheer, the designers were able to provide standing headroom throughout much of the cabin without resorting to a high, wind-catching trunk cabin. This creates an interior that feels cavernous for a 27-foot boat. The standard layout typically includes a V-berth forward, followed by a compact head and a main salon with settees that double as berths.
The use of strip-planked cedar or mahogany, often left bright or painted in light hues, gives the interior a warm, organic atmosphere that modern fiberglass production boats struggle to replicate. Variations within the model line were common, as many were finished to the specific requirements of their first owners. Some hulls were delivered as "kits" or semi-finished shells, leading to diverse cabinetry styles ranging from utilitarian Maine workboat aesthetics to highly polished yacht finishes. The Controversy 27's sibling, the Amphibicon 25, shared many of these interior hallmarks but was designed with a narrower beam for trailering, whereas the 27 prioritized the extra elbow room necessary for extended coastal cruising.
Known Issues & Buyer’s Checklist
Prospective owners must approach the Controversy 27 with a clear understanding of mid-century wooden boat maintenance. While the strip-planked construction is inherently strong, it presents specific vulnerabilities.
- Fastener Fatigue: Many of these hulls were fastened with bronze screws or nails. Over six decades, "nail sickness" or fastener corrosion can lead to plank movement. A surveyor’s hammer test and localized "fastener pulls" are essential.
- Keel Bolt Integrity: The transition between the wooden deadwood and the ballast keel is a common site for "the smile"—a gap that indicates potential keel bolt oxidation or movement.
- Centerboard Trunk: For models equipped with a centerboard, the internal trunk is a notorious site for rot and marine growth. Checking the pivot pin and the structural integrity of the trunk's bedding is critical.
- Deck-to-Hull Joinery: The unique reverse sheer puts specific stresses on the sheer strake. Inspect the deck-to-hull joint for signs of freshwater ingress, which can quickly rot the top-most planks and deck beams.
Community & Resources
The legacy of the Controversy 27 is meticulously preserved by a dedicated group of enthusiasts who value the Butler/Hamlin era of design. The most prominent resource for technical data and historical records is the Amphibi-Club, which, despite its name, serves as the primary hub for all Mount Desert Yacht Yard "Controversy" designs. Members frequently share digitized original brochures and construction drawings that are invaluable for restoration projects. Additionally, the WoodenBoat community remains a high-signal source for advice on maintaining the specific strip-planked hulls used by MDYY.
The Verdict
The Controversy 27 is a "thinking person's" classic, offering a blend of historical significance, architectural innovation, and genuine sailing joy. It is best suited for the sailor who views boat maintenance as a craft rather than a chore.
Pros:
- Innovative Space: Extraordinary headroom and volume for a 27-foot vintage yacht.
- Efficient Hull: Exceptional light-air performance and a dry ride in heavy chop.
- Timeless Aesthetic: The unique reverse sheer ensures the boat stands out in any harbor.
Cons:
- Maintenance Intensive: Requires the specialized care and seasonal attention of a wooden vessel.
- Structural Complexity: The centerboard and strip-planking require a knowledgeable surveyor.
- Niche Appeal: The unconventional look remains a "love it or hate it" proposition for traditionalists.
Measurements
Construction & Hull
- Construction Material
- Fiberglass/Wood Composite
- Hull Type
- Monohull Sailboat
- Keel Type
- Centerboard
- Rudder
- 1x —
- Ballast
- -
- Displacement
- 4600 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 27.5 ft
- Waterline Length (LWL)
- 22.5 ft
- Beam
- 7.92 ft
- Draft
- 4.67 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 316 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 18.28
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 180.29
- Comfort Ratio
- 18.81
- Capsize Screening Formula
- 1.91
- Hull Speed
- 6.36 kn