Chatam 52 Information, Review, Specs

Make
Chatam
Model
52
Builder
Various
Designer
Gilbert Caroff
Number Built
Production Year(s)
1996 - ??

The Chatam 52 is a formidable blue-water expedition yacht designed by the late French naval architect Gilbert Caroff. Positioned at the upper end of the renowned Chatam series, this model is a quintessential example of the "dériveur intégral" (integral centerboarder) philosophy that dominated the French long-distance cruising scene in the late 20th century. Typically constructed in aluminum or steel, the Chatam 52 features a rugged multi-chined hull designed for strength, ease of construction, and the ability to navigate shallow waters or beach safely. While many were built by professional yards like Prometa or Brument, the design was also popular for advanced amateur construction, meaning each vessel often carries the unique fingerprints of its original builder. These yachts were conceptualized under the Gilbert Caroff - Duflos design office, which specialized in vessels capable of withstanding the rigors of high-latitude sailing and transoceanic passages.

Sailing Performance & Handling

The Chatam 52 is designed for stability and "sea-kindliness" rather than outright speed. With a displacement of approximately 20,200 kg (44,533 lbs), it sits firmly in the heavy-displacement category, providing a momentum-driven ride that minimizes the jarring motion often found in lighter production boats. The yacht’s hull form, characterized by three to four hard chines, provides significant initial stability; when heeled, the lower chines act as a tracking edge, helping the boat maintain a steady course even in unruly seas.

The defining characteristic of the Chatam 52’s handling is its lifting keel system. With the board fully extended to roughly 2.80 meters (9.19 ft), the boat demonstrates respectable upwind performance for a metal cruiser, though its windward ability is naturally less efficient than that of a deep-finned performance yacht. Retracting the board reduces the draft to a mere 1.0 meter (3.28 ft), allowing the 52 to enter lagoons and river estuaries inaccessible to most yachts of this size. Under sail, owners report that the boat feels "indestructible," tracking exceptionally well downwind—a trait attributed to the substantial wetted surface and the weight of the metal hull which acts as a natural dampener in following seas.

Interior Comfort & Variations

The interior of the Chatam 52 is defined by its massive volume and the custom nature of its construction. With a beam of 4.70 meters (15.42 ft) and generous headroom often exceeding 2.0 meters (6.7 ft), the cabin feels more like a small apartment than a traditional yacht. Many iterations feature a "salon de pont" (deck saloon) configuration, where the seating area is raised to provide 360-degree visibility through large perimeter windows, a critical feature for watch-keeping in cold or rainy climates.

Sibling models on the same design trajectory include the Chatam 43, 47, and 50. The Chatam 52 offers a significantly expanded galley and utility area compared to its smaller counterparts, making it a preferred choice for families or crews planning multi-year voyages. Common layouts include a three- or four-cabin arrangement, with the owner’s suite typically located in either the bow or the aft section, depending on whether the cockpit is center- or aft-positioned. Because these were often built from plans or semi-custom kits, interior materials vary widely, ranging from functional marine plywood with high-pressure laminates to ornate exotic hardwood veneers.

The Chatam series holds a storied place in the "expedition" subculture of sailing. The designs are frequently cited in high-latitude cruising resources, such as Attainable Adventure Cruising, as examples of the robust metal-hull philosophy required for navigating regions like Patagonia or the Arctic. While the Chatam 52 itself hasn't been the subject of a mass-market English glossy review, its smaller siblings and the general Caroff philosophy are staples in French nautical literature, where they are praised for their "all-terrain" capability.

Known Issues & Buyer’s Checklist

  1. Galvanic Corrosion (Electrolysis): For aluminum versions, the most critical inspection point is the hull's integrity near through-hull fittings and the keel trunk. Improperly installed electrical systems can lead to rapid pitting. A professional hull potential test is mandatory.
  2. Insulation Quality: In metal boats, the quality of the insulation determines live-aboard comfort. Buyers should check for "cold bridges" where the metal frames meet the interior liner, which can lead to condensation and mold.
  3. Lifting Keel Mechanism: The hydraulic or manual winch system for the centerboard must be tested under load. The pivot pin and the internal keel trunk are prone to wear and can be difficult to access for repair.
  4. Weight Management: Because many Chatams were amateur-finished, some hulls may be significantly heavier than the designer's original specs due to over-engineering or heavy interior joinery, which can negatively affect the boat's waterline and sailing performance.
  5. Chainplate Welds: Inspect the areas where the chainplates are welded directly to the hull or deck. While metal construction is inherently strong, these high-stress points can develop cracks if the original welding didn't follow strict marine-grade protocols.

Community & Resources

The primary resource for technical data and design history is the official archive of Gilbert Caroff - Duflos. Owners of the Chatam 52 and other Caroff designs are most active in French-speaking communities such as Hisse et Oh, where technical wikis detail common modifications and refit strategies for the lifting keel mechanisms.

The Verdict

The Chatam 52 is a specialized tool for the serious voyager who prioritizes safety and shallow-water access over regatta-style performance. It is a "forever boat" for those who value the peace of mind that comes from a metal hull and the versatility of an integral centerboard.

Pros:

  • Shallow Draft: The ability to beach or enter 1-meter deep waters is a game-changer for tropical and river exploration.
  • Extreme Durability: The metal hull (aluminum or steel) offers superior impact resistance compared to fiberglass.
  • Volume: Exceptional interior space and headroom for long-term living.
  • Safety: High initial stability and a hull designed for heavy weather.

Cons:

  • Maintenance Intensity: Metal hulls require constant vigilance regarding paint systems and sacrificial anodes.
  • Upwind Performance: The chined, heavy hull is not optimized for pointing high or light-wind sailing.
  • Variable Build Quality: The custom nature of these boats requires a more rigorous survey than mass-produced yachts.

Measurements

Construction & Hull

Construction Material
Aluminum/Steel Composite
Hull Type
Monohull Sailboat
Keel Type
Wing
Rudder
1x —
Ballast
14110 lbs
Displacement
44533 lbs
Water Capacity
370 gal
Fuel Capacity
185 gal

Dimensions

Length Overall (LOA)
54.79 ft
Waterline Length (LWL)
48.23 ft
Beam
15.42 ft
Draft
9.19 ft
Max Headroom
6.73 ft
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Cutter
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
1668.41 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
21.24
Ballast / Displacement Ratio
31.68
Displacement / Length Ratio (D/L) Ratio
177.21
Comfort Ratio
35.89
Capsize Screening Formula
1.74
Hull Speed
9.31 kn