Dufour 310 Grand Large vs Dufour 365 Grand Large — Comparison
Dufour 310 Grand Large
Dufour 365 Grand Large
Specifications Side by Side
| Specification | Dufour 310 Grand Large | Dufour 365 Grand Large |
|---|---|---|
| General | ||
| Manufacturer | Dufour | Dufour |
| Year | 2015–2020 | 2003–2007 |
| Type | Sloop | Sloop |
| Country | France | France |
| Designer | Felci Yacht Design | Umberto Felci |
| Dimensions | ||
| LOA | 9.43 m (30.9 ft) | 10.97 m (36.0 ft) |
| LWL | 8.45 m (27.7 ft) | 9.72 m (31.9 ft) |
| Beam | 3.13 m (10.3 ft) | 3.52 m (11.5 ft) |
| Draft | 1.60 m (5.2 ft) | 1.80 m (5.9 ft) |
| Weight | ||
| Displacement | 4,150 kg (9,149 lbs) | 6,100 kg (13,448 lbs) |
| Ballast | 1,230 kg (2,712 lbs) | 1,850 kg (4,079 lbs) |
| Sailing | ||
| Sail Area | 40.0 m² (431 ft²) | 57.5 m² (619 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 15 HP | 21 HP |
| Fuel Capacity | 80 L (21.1 gal) | 120 L (31.7 gal) |
| Water Capacity | 120 L (31.7 gal) | 210 L (55.5 gal) |
| Accommodation | ||
| Berths | 4 | 6 |
| Cabins | 1 | 2 |
Performance Comparison
Detailed Comparison
The Dufour 310 Grand Large and Dufour 365 Grand Large represent two takes on sloop-rigged sailing. The Dufour 310 Grand Large is a modern design by Dufour from France, while the Dufour 365 Grand Large is a 2000s offering from Dufour from France. The Dufour 310 Grand Large was penned by Felci Yacht Design. The Dufour 365 Grand Large was designed by Umberto Felci.
In terms of size, the Dufour 310 Grand Large measures 9.43m (30.9ft) overall with a beam of 3.13m, compared to the Dufour 365 Grand Large at 10.97m (36.0ft) with a 3.52m beam. The Dufour 365 Grand Large is 1.54m longer than the Dufour 310 Grand Large. The Dufour 365 Grand Large displaces approximately 47% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the Dufour 310 Grand Large has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.74 and 40.0 m² of sail area. The Dufour 365 Grand Large, with an SA/D of 17.50 and 57.5 m² of canvas, offers good sail power for versatile performance. The Dufour 365 Grand Large has the edge in terms of raw sailing performance.
For comfort and safety, the Dufour 310 Grand Large offers a firm, racing-oriented motion (comfort ratio: 18.3) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.78). The Dufour 365 Grand Large has a comfort ratio of 17.2 and a capsize screening value of 0.77. The ballast ratios are 29.6% for the Dufour 310 Grand Large and 30.3% for the Dufour 365 Grand Large, reflecting their respective approaches to stability.
Below deck, the Dufour 310 Grand Large provides 4 berths in 1 cabin with 120L of water capacity and 80L of fuel. The Dufour 365 Grand Large offers 6 berths in 2 cabins with 210L water and 120L fuel capacity.
Verdict
For cruising: The Dufour 310 Grand Large is the better choice for comfortable cruising thanks to its higher comfort ratio, offering a gentler motion at sea that crews will appreciate on longer passages.
For racing: The Dufour 365 Grand Large has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The Dufour 365 Grand Large offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.