Dufour Gib Sea 51 Information, Review, Specs

Sailing Performance & Handling

Under sail, the Gib’Sea 51 is characterized by its significant displacement and substantial wetted surface area. While it is not a light-air specialist, it comes into its own once the breeze exceeds 12 to 15 knots. Its hull form, featuring a wide beam carried well aft, provides immense initial stability, making it a "stiff" boat that resists excessive heeling. This design philosophy ensures a comfortable ride for guests, though it results in a larger turning radius and more leeway when pinched close to the wind.

The twin steering wheels were a signature feature at the time of its launch, offering the helmsman excellent visibility from the high-side coamings and facilitating an unobstructed walkthrough from the stern swim platform to the companionway. According to editorial testing by Cruising World, the vessel was noted for its "user-friendly" deck systems, including a simplified rig and a cockpit designed for "easy-to-manage" sailing. The Sail Area/Displacement ratio suggests a boat that is under-canvassed compared to a dedicated racer, but this conservative approach reduces the need for early reefing and makes the boat manageable for short-handed crews or less experienced charterers.

Interior Comfort & Variations

The interior of the Gib’Sea 51 was designed to maximize occupancy and social flow, offering configurations that were almost unprecedented for a 50-foot monohull at the time. The most common iteration is the 5-cabin, 5-head layout, which was the standard for Mediterranean charter operations. This version features two symmetrical double cabins aft and two forward, with an additional bunk-bed cabin or "crew" cabin tucked away. For private owners, a 4-cabin version was offered, which typically converted the forward section into a more luxurious master suite.

The main salon is characterized by its cavernous feel, aided by a nearly 16-foot beam. A large U-shaped settee dominates the starboard side, while a linear galley runs along the port side, providing enough counter space to cater for 10 or more guests. High-authority reviews emphasize the abundance of overhead hatches and portlights, which prevent the deep interior from feeling claustrophobic. The use of light-colored wood veneers—often Tali or light mahogany—was a standard choice to enhance the sense of space, though the fit and finish are more utilitarian than Dufour’s more expensive "Classic" or "Performance" lines.

Popular Mentions & Media

The Gib’Sea 51 achieved its greatest cultural footprint as a "workhorse" of the global charter industry. In the decade following its release, it was a staple in the fleets of Sunsail and The Moorings, particularly in the Caribbean and the Greek Isles. Because of this ubiquity, the model is frequently featured in vintage cruising vlogs and nautical travelogues from the early 2000s as the quintessential "big boat" for flotilla holidays. While it lacks the individual fame of a trans-oceanic record-breaker, its reputation is built on its role as the primary introduction to large-scale monohull cruising for thousands of sailors.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the Gib’Sea 51 with a focus on its history, as many units spent their first decade in rigorous charter service.

• Rudder and Bearings: Given the high loads on the twin-wheel steering system, the rudder bearings are a known wear point. Check for play in the pedestals and any signs of delamination or water ingress in the rudder blade itself.
• Deck Hardware Bedding: The large sail area puts significant strain on the deck organizers and genoa tracks. Inspect the headliner inside for signs of leaks, which often indicate that deck fittings need to be re-bedded to prevent core rot.
• Engine Hours: Most Gib’Sea 51s were equipped with Volvo Penta or Yanmar engines between 75hp and 110hp. In charter-heavy models, engine hours may be exceptionally high, requiring a thorough mechanical survey of the heat exchangers and sail drive seals.
• Interior Joinery: Because the boat was built to a price point for the charter market, the veneers are thinner than those on premium yachts. Look for "milking" or peeling of the varnish in high-traffic areas or near the companionway where UV exposure is highest.

Community & Resources

Owners of the Gib’Sea 51 often find technical support through broader Dufour enthusiast groups, as the brand was fully integrated into the Dufour hierarchy shortly after the model's release. The Dufour Owners Association serves as the primary hub for technical manuals and spare parts sourcing for the Gib’Sea line. Additionally, because the hull was designed by J&J Design, technical drawings and architectural insights are occasionally archived through their historical design records.

The Verdict

The Gib’Sea 51 is a "volume-first" cruiser that offers an incredible amount of living space for the price. While it won't win many windward-leeward races, it excels as a stable, comfortable platform for large families or those looking to live aboard.

Pros:

• Exceptional Volume: Easily accommodates large groups with privacy for each cabin.
• Cockpit Ergonomics: The twin-helm layout and wide cockpit are ideal for entertaining.
• Stability: A very stiff hull that provides a sense of security in heavy weather.

Cons:

• Light Air Performance: The heavy displacement makes it sluggish in winds under 10 knots.
• Aesthetic: The high freeboard and "bubble" coachroof give it a bulky profile.
• Build Quality: More utilitarian finishes compared to Dufour’s premium ranges.