Dufour 485 Grand Large Information, Review, Specs

Sailing Performance & Handling

The hull of the Dufour 485 GL reflects the signature "Felci" style: a refined entry transitioning into a powerful midsection with a significant beam carried well aft. This design provides a high degree of form stability, allowing the boat to carry a generous sail plan without excessive heeling. In sea trials documented by contemporary reviewers, the boat demonstrated a notable "stiff" character, maintaining its composure even when pressed in 20-25 knots of breeze. The standard configuration typically included a deep-draft lead keel (2.25m), which balances the relatively high center of gravity inherent in a high-volume cruiser.

Handling is facilitated by a twin-wheel steering system that provides the helmsman with excellent visibility and a direct, mechanical feel, even when the broad transom is loaded up. While the Displacement/Length ratio suggests a medium-displacement cruiser rather than a light-air racer, the 485 is surprisingly agile in light winds due to its clean underwater profile. Owners often report that the boat tracks exceptionally well on a reach, though like many modern wide-beam designs, it requires early reefing to maintain optimal rudder grip once the wind exceeds 18 knots. The inclusion of a standard bow thruster in most units is a testament to the windage of its high topsides, which can make docking in a crosswind challenging for a short-handed crew.

Interior Comfort & Variations

The interior of the 485 Grand Large was a departure from the traditional dark wood aesthetics of previous decades, utilizing Moabi mahogany and abundant natural light via large deckhouse windows. The primary layout features a three-cabin configuration, dominated by a palatial forward owner's suite that includes a separate head and shower compartment, effectively utilizing the vessel's 4.7-meter beam. The "Grand Large" philosophy is most evident in the salon, where the choice of a longitudinal galley or a more traditional L-shaped arrangement was offered to cater to different cruising styles.

Dufour also produced a four-cabin variant, often utilized in premium charter fleets, which splits the forward cabin into two smaller doubles. Regardless of the cabin count, the boat is noted for its "sea-going" galley design, featuring deep sinks and secure bracing points for cooking under sail. Technical siblings in the Dufour lineup include the 455 Grand Large, which shares several design cues but lacks the 485's dedicated technical room (utility space) located behind the navigation station in certain versions. Storage is a high priority on this model, with massive lazarettes and a dedicated liferaft locker that ensures the decks remain uncluttered.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the Dufour 485 Grand Large with a focus on its complex systems and structural maintenance. High-signal technical areas identified by owner groups and surveyors include:

• Rudder Bearings: Due to the high loads generated by the twin-wheel system and the broad transom, the rudder bearings on the 485 are prone to premature wear. Buyers should check for excessive "play" in the steering and inspect the quadrant for cable tension issues.
• Saildrive Diaphragm: The 485 is typically powered by a Volvo Penta engine with a saildrive unit. The rubber seals (diaphragms) have a recommended replacement interval of 7 years; on older 485 models, these are often overdue and represent a significant maintenance cost.
• Chainplate Inspection: As with many performance cruisers of this era, the chainplates are subjected to high tension. Any signs of "tea staining" or water ingress around the deck tie-rods should be investigated for core saturation in the sandwich deck.
• Deck Hardware Bedding: The 485 features extensive teak work and numerous flush-mounted deck hatches. Reviewers and owners have occasionally noted leaks in the sealant around the fixed hull ports, which can damage the Moabi interior veneers if left unchecked.

Community & Resources

The Dufour 485 Grand Large is supported by a robust network of owners, primarily centered around the Dufour Yachts Owners Association, which provides technical archives and spare parts sourcing advice for out-of-production models. Because the boat was a global model, technical support is generally accessible through the Fountaine Pajot-Dufour dealer network, though specific 485-series components (like custom deck molds) are increasingly handled through specialist fabricators.

The Verdict

The Dufour 485 Grand Large remains a premier choice for sailors who want a modern-looking, fast cruiser that doesn't feel like a lightweight "coastal-only" boat. It offers a bridge between the elegance of Italian design and the ruggedness of French offshore engineering.

Pros:

• Exceptional Volume: The interior feels significantly larger than most 48-footers, especially in the owner's suite.
• Sailing Balance: Stiff and predictable performance in heavy air thanks to the Felci hull design.
• Deck Ergonomics: Excellent cockpit layout that separates the working "sailing" area from the "relaxing" guest area.

Cons:

• Maintenance Complexity: High-spec systems (thrusters, electric winches, complex plumbing) require a dedicated maintenance budget.
• Aft Cabin Ventilation: While the salon is airy, the aft cabins can become warm in tropical climates without upgraded air conditioning.
• Draft Restrictions: The performance-oriented 2.25m keel may limit access to some shallower cruising grounds in the Bahamas or the US East Coast.