Alubat Ovni 37 Information, Review, Specs

Sailing Performance & Handling

The sailing characteristics of the Ovni 37 are defined by its hull form and the lack of a fixed keel. Because the ballast is located internally within the hull sole rather than in the centerboard itself, the boat has a high displacement-to-ballast ratio, which results in a softer motion in heavy seas compared to deep-finned performance yachts. Under sail, the Ovni 37 is a predictable and stable platform, though its hard chines and relatively high displacement mean it requires a stiff breeze to truly come alive.

With the centerboard down, the boat tracks surprisingly well to windward for a flat-bottomed vessel, though it will never match the pointing angles of a deep-draft monohull. Its true strength lies in off-the-wind performance; by partially raising the board, the helm remains exceptionally light, and the boat can slide downwaves with reduced risk of "tripping" over its keel. Editorial reviews, such as those historically found in Voiles et Voiliers, emphasize that while the 37 is not a racer, its ability to reduce draft from over 2 meters to just 0.55 meters (1.8 feet) opens up cruising grounds that are inaccessible to almost any other yacht of this size.

Interior Comfort & Variations

Inside, the Ovni 37 offers a voluminous and functional living space that reflects its blue-water intentions. The standard layout typically features two or three cabins, with the two-cabin version being particularly popular among long-term cruisers for the massive cockpit locker and increased galley storage it provides. The woodwork is traditionally light—often elm or light oak—to counteract the "industrial" feel of an aluminum hull and maximize the natural light from the cabin windows.

A hallmark of the Briand design is the large, U-shaped saloon settee surrounding a central table that houses the centerboard trunk. This trunk is ingeniously integrated so as not to bisect the living space, though it does dictate the furniture arrangement. Headroom is generous throughout the main cabin, usually exceeding 6'2". Owners often highlight the thermal and acoustic benefits of the insulation applied to the hull above the waterline, which is a necessity for the aluminum construction to prevent condensation and maintain cabin temperature in varying climates. The Ovni 37 was eventually succeeded by the Ovni 385, which featured a wider beam and more modern interior styling, but the 37 remains a favorite for those seeking a more compact, traditional layout.

Popular Mentions & Media

The Ovni 37 has earned a cult following among the "high latitudes" cruising community. It is frequently cited in French nautical literature as a benchmark for the "expedition light" category of yachts. While the larger 435 and 395 models have received more mainstream media coverage in recent years, the 37 remains a staple in the archives of Philippe Briand, often cited as one of the models that defined his early success in the rugged cruiser market.

Known Issues & Buyer’s Checklist

Prospective buyers of an Ovni 37 must prioritize a technical inspection of the aluminum hull and the centerboard mechanism. While aluminum is exceptionally strong, it requires diligent maintenance of the electrical systems and sacrificial anodes.

• Galvanic Corrosion: The most critical "gotcha" is electrolysis. Buyers should inspect the hull for any signs of "pitting," particularly near through-hull fittings and the stern. A specialized hull survey using a silver-chloride reference electrode is highly recommended to ensure the boat has been properly isolated.
• Centerboard Mechanism: The lifting keel is operated via a manual or hydraulic winch system. The pivot pin and the lifting pennants (cables) are wear items. If the board "clunks" while at anchor, the nylon spacers/bushings likely need replacement.
• Window Seals: The large cabin windows are iconic but prone to leaking over decades of service. Check for water staining on the interior woodwork around the ports.
• Insulation Integrity: Older hulls may have areas where the foam insulation has degraded or been removed for repairs. Check behind lockers for the presence of "sweating" (condensation), which can lead to mold issues in the cabinetry.

Community & Resources

Owners of Alubat vessels are supported by a robust network of international associations. The most prominent is the Ovni Owners Association, a technical resource group that maintains a deep archive of manuals and modification guides specifically for the 37 and its siblings. Additionally, the French-based Club Alubat provides a direct link to the shipyard’s heritage and technical support for older models.

The Verdict

The Alubat Ovni 37 is a purpose-built tool for the adventurous sailor, trading outright speed for the freedom to explore reefs, rivers, and arctic coastlines.

Pros:

• Unrivaled Versatility: The 0.55m draft allows for "creek crawling" and beaching that few boats can match.
• Hull Durability: The 5083 aluminum construction is far more resilient to impact than GRP/fiberglass.
• Blue-Water Pedigree: Designed for ocean crossings with a focus on safety and motion.

Cons:

• Maintenance Sensitivity: Requires strict adherence to electrical isolation and anode replacement to prevent corrosion.
• Pointing Ability: Will not point as high or sail as fast upwind as a fixed-keel performance cruiser.
• Interior Weight: The internal ballast and heavy hull material make for a boat that can feel sluggish in light airs.