The Alubat Ovni 43 represents a pivotal era in the evolution of the French shipyard’s rugged, go-anywhere aluminum cruisers. Designed by the renowned Philippe Briand and launched in the late 1980s, the Ovni 43 was built to fulfill the demands of long-distance voyagers who required a vessel capable of both crossing oceans and exploring shallow, uncharted estuaries. Constructed from 5083 H111 aluminum, the hull is celebrated for its impact resistance and structural integrity, a hallmark of the Alubat shipyard. Unlike many of its contemporaries, the Ovni 43 features a fully retractable centerboard and a lifting rudder, allowing it to "dry out" on its own hull or navigate waters less than a meter deep. This model served as a bridge between the earlier Ovni 41 and the later, more refined Ovni 435, maintaining a reputation for utilitarian strength and functional simplicity.
Alubat Ovni 43 Information, Review, Specs
- Make
- Alubat
- Model
- Ovni 43
- Builder
- —
- Designer
- —
- Number Built
Sailing Performance & Handling
The sailing characteristics of the Ovni 43 are defined by its hull material and its lifting-keel configuration. As an aluminum cruiser with a substantial displacement, it is not a light-air performer; it requires a decent breeze to overcome its inertia. However, once moving, the hull’s round-bilge design and the waterline length provided by its 43-foot frame offer a stable and predictable motion in heavy seas.
According to technical retrospectives and owner accounts, the boat tracks remarkably well when the centerboard is fully deployed. Conversely, when sailing downwind in heavy weather, raising the board slightly can reduce the risk of "tripping" over the keel, a unique safety advantage of the lifting-keel design. The steering is typically described as heavy but reliable, though the twin-rudder setup found on newer Ovnis was not present here; instead, the 43 relies on a single, high-strength lifting rudder. In his analysis of the range’s evolution, maritime journalists at Yachting World have noted that while the Ovni series sacrifices some upwind pointing ability compared to deep-finned lead-mine yachts, the trade-off is a vessel that remains "unstoppable" in adverse conditions.
Interior Comfort & Variations
The interior of the Ovni 43 reflects the "expedition" mindset of Alubat, typically finished in light woods like ash or elm to brighten what could otherwise be a dark cabin due to the small, high-strength portlights. The standard layout features three double cabins—two aft and one forward—along with two heads, though some semi-custom variations exist depending on the original owner’s requirements.
A central feature of the salon is the large aluminum centerboard trunk, which is cleverly integrated into the dining table. While this trunk necessitates a slightly split cabin arrangement, it also serves as a massive structural backbone for the interior. Headroom is generous throughout the main living areas, often exceeding 6’3”, which is notable for a boat of this vintage. The galley is typically linear and located to the port side, designed to be usable even when the boat is heeled. The Ovni 43’s sibling, the Ovni 41, utilized a very similar layout but with slightly less volume in the aft sections, whereas the succeeding Ovni 435 introduced more modern "deck saloon" styling with increased natural light.
Popular Mentions & Media
The Alubat Ovni 43 holds a significant place in the "blue water" pantheon largely due to its association with Jimmy Cornell, the founder of the World Cruising Guide and the Atlantic Rally for Cruisers (ARC). Cornell chose an Ovni 43, named Aventura II, for his second circumnavigation, documenting the vessel's performance in his influential books and articles. His public endorsement of the "aluminum lifting-keel" concept as the ideal format for long-distance cruising solidified the Ovni 43’s status as a cult classic among serious navigators.
Known Issues & Buyer’s Checklist
Prospective buyers must approach an aluminum vessel with a specific technical lens, focusing on the unique properties of the metal.
- Electrolysis & Galvanic Corrosion: This is the primary concern for any Ovni. It is essential to inspect for "pitting" in the hull, particularly around the waterline and through-hull fittings. Ensure that previous owners have not installed "dissimilar metals" (like brass or bronze fittings) directly into the aluminum hull without proper insulation.
- Centerboard Mechanism: The lifting keel is operated via a manual or hydraulic winch system. The pivot pin and the cable/lifting strops are wear items that require periodic replacement. If the board "clanks" excessively when down, the sacrificial nylon shims may be worn out.
- Insulation and Condensation: Earlier Ovni 43s may have varied levels of insulation. Buyers should check behind lockers for signs of persistent moisture or "aluminum rot" (white powdery oxidation) caused by trapped condensation against the hull.
- Paint Adhesion: While many Ovnis are left unpainted above the waterline, those with painted hulls often suffer from bubbling and peeling if the original zinc-chromate primer was not applied perfectly.
Community & Resources
The Ovni 43 benefits from a highly dedicated global community. The Ovni Owners Association is the primary hub for technical documentation, providing specific advice on centerboard maintenance and aluminum-specific electrical grounding. Additionally, French-speaking owners often congregate via the STW (Sail The World) forums, which contain extensive technical archives specifically for Alubat models.
The Verdict
The Alubat Ovni 43 is a purpose-built tool for sailors who prioritize safety and versatility over pure racing speed. It remains one of the few production yachts capable of transiting the Northwest Passage or tucking into a shallow French cove with equal aplomb.
Pros:
- Shallow Draft: The ability to lift the keel allows access to hurricane holes and shallow anchorages inaccessible to other 43-footers.
- Rugged Construction: The aluminum hull offers superior peace of mind regarding reef strikes or floating debris.
- Proven Pedigree: A true "blue water" veteran with a design endorsed by legendary voyagers.
Cons:
- Maintenance Intensity: Requires meticulous management of the electrical system and anodes to prevent corrosion.
- Light Wind Performance: The heavy displacement and centerboard drag make it sluggish in winds under 10 knots.
- Price Premium: Due to their longevity and reputation, they tend to hold their value and command higher prices than fiberglass boats of the same age.
Measurements
Construction & Hull
- Construction Material
- —
- Hull Type
- — Sailboat
- Keel Type
- —
- Ballast
- -
- Displacement
- -
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- -
- Waterline Length (LWL)
- -
- Beam
- -
- Draft
- -
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- —
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- -
Calculations
- Sail Area / Displacement (SA/D) Ratio
- —
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- —
- Comfort Ratio
- —
- Capsize Screening Formula
- —
- Hull Speed
- — kn