Brise DE Mer 31 Information, Review, Specs

Sailing Performance & Handling

The sailing characteristics of the Brise de Mer 31 are heavily influenced by Jean-Marie Finot’s philosophy of wide-beamed, light-displacement designs. While its aluminum construction might suggest a heavy, sluggish ride, the boat is surprisingly lively. According to historical design data from Finot-Conq, the hull features a relatively flat bottom and a significant beam (3.25 meters) carried well aft, which provides excellent initial stability and allows the boat to plane in surf or heavy following seas.

Under sail, the boat is known for its "sea-kindliness," a term often used by owners to describe its predictable motion in a chop. Because it is lighter than many traditional steel or heavy-layup fiberglass cruisers of the same size, it performs respectably in light air, provided the hull is clean. However, its true strength lies in heavy weather. The stiffness of the aluminum hull ensures that the rig remains stable, and the boat tracks well when reefed down. The tiller steering offers direct feedback, making it an engaging helm for the purist, though many have been retrofitted with wind-vane steering for long-distance passages.

Interior Comfort & Variations

The interior of the Brise de Mer 31 is a product of its era—functional, utilitarian, and maximize for offshore safety. The layout typically features a classic offshore arrangement: a V-berth forward, a central salon with settees that double as sea berths, a compact galley to port, and a navigation station to starboard. One of the most significant advantages of its aluminum construction is the lack of internal structural bulkheads required for stiffness, allowing for a relatively open and airy feel despite the modest 31-foot length.

Variations in the interior are common, as many of these boats were sold as "bare hulls" or "sail-away" kits for owners to finish themselves. Consequently, while some feature professional joinery in mahogany or teak, others have more utilitarian, DIY finishes. Headroom is generous for a boat of this vintage, typically hovering around 1.85 meters (6 feet) in the main cabin. It is important to note that because aluminum is a high conductor of heat, the quality of the interior insulation is a critical factor in onboard comfort; boats intended for cold-water cruising often feature thick closed-cell foam insulation behind the cabinetry to prevent condensation.

Known Issues & Buyer’s Checklist

When evaluating a Brise de Mer 31, the primary concern is the integrity of the aluminum hull and the prevention of galvanic corrosion. Buyers should conduct a thorough inspection of the following areas:

• Electrolysis and Pitting: The most critical check is for signs of electrolysis, particularly around the waterline, the keel junction, and through-hull fittings. A professional hull survey using a silver-chloride reference electrode is essential to ensure the boat's cathodic protection system is functioning.
• Insulation and Condensation: Inadequately insulated hulls can suffer from "sweating," which leads to trapped moisture behind the furniture. This can cause hidden corrosion from the inside out and persistent mold issues. Check the bilge and the areas behind the settees for signs of standing water.
• Engine Grounding: Improperly grounded electrical systems or engines can turn an aluminum hull into a giant battery, accelerating corrosion. Inspect the wiring to ensure it is a "two-wire" isolated system (where the engine block is not used as a ground).
• Chainplates and Deck Fittings: Ensure that all stainless steel hardware is properly isolated from the aluminum deck using Tef-Gel or nylon washers. Mixing these metals without a barrier leads to "stainless-aluminum cancer," where the aluminum becomes brittle and powdery around the fitting.

Community & Resources

Owners and prospective buyers of this model often congregate within broader French sailing associations focused on aluminum vessels. The most prominent technical resource for the model is the "Brise de Mer" section of the Finot designer archives, which maintains original sail plans and hull offsets. Technical discussions regarding the maintenance of these specific hulls are frequently hosted by the Association des Propriétaires de Brise de Mer, a dedicated group that shares knowledge on refitting and blue-water preparation for the entire Brise de Mer range.

The Verdict

The Brise de Mer 31 remains a top-tier choice for the budget-conscious sailor who demands the structural security of a metal hull in a manageable, performance-oriented package.

Pros:

• Exceptional Durability: The aluminum hull is virtually puncture-proof compared to fiberglass, making it ideal for rocky coasts or debris-filled waters.
• Modern Hull Shape: The Finot design ensures the boat is faster and more stable than most 1970s cruisers.
• Blue Water Heritage: Proven track record of Atlantic crossings and high-latitude expeditions.

Cons:

• Maintenance Sensitivity: Requires strict adherence to anode replacement and electrical isolation to prevent corrosion.
• Variable Finish Quality: Interior aesthetics and plumbing vary widely due to the prevalence of owner-finished examples.
• Thermal Management: Can be prone to condensation in cold climates if the insulation was poorly installed.