The Flot 32 is a distinctive aluminum monohull cruiser developed by the French shipyard Chantier Metalu during the late 1970s. Designed by the prolific naval architect Sylvain Langevin, the vessel was part of a focused series of light-alloy boats that sought to bring the durability and structural integrity of aluminum to the mass-market cruising community. Built primarily between 1977 and 1982, the Flot 32 was noted for its exceptionally wide beam and light displacement relative to contemporary GRP (fiberglass) or steel counterparts. According to official French maritime records, the model was homologated during a period when Chantier Metalu was establishing itself as a premier builder of light-alloy hulls, including the larger Janyx and the smaller Flot 18 sibling.
Flot 32 Information, Review, Specs

- Make
- Flot
- Model
- 32
- Builder
- Chantier Métalu
- Designer
- S. Langevin
- Number Built
- Production Year(s)
- 1977 - ??
Sailing Performance & Handling
The Flot 32 is characterized by its light displacement and stiff, aluminum construction, which affords a level of structural rigidity rarely found in 30-footers of its era. With a displacement-to-length (D/L) ratio of approximately 187, the boat sits firmly in the "moderate racer" or light cruiser category. This light footprint allows for brisk acceleration in light winds, particularly when compared to the heavier steel cruisers popular in European waters at the time.
Handling is influenced heavily by its 3.35-meter (11-foot) beam, which is unusually wide for a boat with a length of only 9.56 meters. This provides a high level of initial stability but results in a Capsize Screening Formula (CSF) of roughly 2.20, as noted in technical data from Bateaux.com. While this suggests a hull designed more for coastal and cross-channel work than extreme ocean racing, the inherent strength of the aluminum hull provides a safety margin for heavy-weather encounters. The standard masthead sloop rig is simple to trim, and the use of a fin keel provides good maneuverability in tight quarters, though some owners have noted that the high freeboard can increase windage during docking.
Interior Comfort & Variations
The beaminess of the Flot 32 translates directly into an interior volume that feels significantly larger than a traditional 32-foot yacht. The design typically features a two-cabin layout: a V-berth forward and a double cabin aft. The use of aluminum allow for a slightly different framing structure than GRP boats, providing a sense of openness in the main salon.
There is significant variation in the finish of these boats, as many were sold in different stages of completion or as "kits" for owners to fit out. While the shipyard-finished versions utilize traditional wood veneers, the "DL" (Dériveur Lesté or weighted daggerboard) variant offered a lifting keel for shallow-water cruising, though the fixed-keel version remains more common. Headroom is generous throughout the main cabin, assisted by the relatively flat coachroof design. One notable detail of the Metalu construction is the integration of structural bulkheads, which are welded or mechanically fastened to the hull, creating a cohesive, "one-piece" feel to the living quarters.
Known Issues & Buyer’s Checklist
As an aluminum vessel, the Flot 32 requires a specialized inspection protocol that differs significantly from fiberglass boats.
- Galvanic Corrosion: The primary concern for any alloy boat is electrolysis. Prospective buyers must inspect the hull for signs of pitting, particularly near the waterline and around through-hull fittings. It is essential to ensure that no "stray" copper-based antifouling paint has ever been applied, as this can cause rapid hull degradation.
- Electrical Isolation: The electrical system must be fully isolated from the hull (two-pole system). A common "gotcha" on older Flot 32s is owner-added accessories that have been grounded to the hull, which can accelerate corrosion.
- Insulation Integrity: To prevent condensation and thermal bridging, the interior of the aluminum hull must be well-insulated. Buyers should check behind lockers for signs of "sweating" or corrosion where the insulation may have detached or been omitted.
- Keel and Rudder Bearings: On lifting-keel variants, the pivot pin and lifting mechanism are high-wear items. On fixed-keel versions, the joint between the lead ballast and the aluminum keel stub should be inspected for signs of movement or sealant failure.
Community & Resources
The community for the Flot 32 is centered largely in France, where Metalu boats retain a dedicated following among "allu" enthusiasts. Owners often congregate on French-language technical forums such as Hisse-et-Oh to discuss specific maintenance tasks for the Langevin-designed hulls. Technical documentation can occasionally be found through the archives of the Chantier Metalu legacy, though much of the support is now peer-to-peer.
The Verdict
The Flot 32 is an over-engineered, spacious coastal cruiser that offers the peace of mind of a metal hull in a manageable size. It is best suited for cruisers who prioritize structural safety and interior volume over traditional aesthetic lines.
Pros:
- Structural Rigidity: Aluminum construction is virtually immune to osmosis and provides immense impact resistance.
- Interior Volume: The 11-foot beam provides a living space comparable to many modern 35-footers.
- Performance: Surprisingly light and responsive for a metal boat, especially in light to moderate air.
Cons:
- Specialized Maintenance: Requires strict adherence to anode schedules and electrical isolation protocols.
- Aesthetics: The high freeboard and wide beam give it a "boxy" profile compared to classic GRP designs.
- Market Rarity: Difficult to find outside of European (specifically French) markets.
Measurements
Construction & Hull
- Construction Material
- —
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Spade
- Ballast
- -
- Displacement
- 8000 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 31.36 ft
- Waterline Length (LWL)
- 26.74 ft
- Beam
- 10.99 ft
- Draft
- 5.2 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
- 563 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 22.52
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 186.79
- Comfort Ratio
- 18.05
- Capsize Screening Formula
- 2.2
- Hull Speed
- 6.93 kn