Dufour 310 Grand Large vs 1986 Westerly Oceanlord — Comparison
Specifications Side by Side
| Specification | Dufour 310 Grand Large | 1986 Westerly Oceanlord |
|---|---|---|
| General | ||
| Manufacturer | Dufour | Westerly |
| Year | 2015–2020 | 1986–1992 |
| Type | Sloop | Sloop |
| Country | France | UK |
| Designer | Felci Yacht Design | Ed Dubois |
| Dimensions | ||
| LOA | 9.43 m (30.9 ft) | 12.04 m (39.5 ft) |
| LWL | 8.45 m (27.7 ft) | 9.75 m (32.0 ft) |
| Beam | 3.13 m (10.3 ft) | 3.81 m (12.5 ft) |
| Draft | 1.60 m (5.2 ft) | 1.83 m (6.0 ft) |
| Weight | ||
| Displacement | 4,150 kg (9,149 lbs) | 9,980 kg (22,002 lbs) |
| Ballast | 1,230 kg (2,712 lbs) | 3,629 kg (8,001 lbs) |
| Sailing | ||
| Sail Area | 40.0 m² (431 ft²) | 68.0 m² (732 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 15 HP | 50 HP |
| Fuel Capacity | 80 L (21.1 gal) | 182 L (48.1 gal) |
| Water Capacity | 120 L (31.7 gal) | 340 L (89.8 gal) |
| Accommodation | ||
| Berths | 4 | 7 |
| Cabins | 1 | 3 |
Performance Comparison
Detailed Comparison
The Dufour 310 Grand Large and 1986 Westerly Oceanlord represent two takes on sloop-rigged sailing. The Dufour 310 Grand Large is a modern design by Dufour from France, while the 1986 Westerly Oceanlord is a 1980s offering from Westerly from UK. The Dufour 310 Grand Large was penned by Felci Yacht Design. The 1986 Westerly Oceanlord was designed by Ed Dubois.
In terms of size, the Dufour 310 Grand Large measures 9.43m (30.9ft) overall with a beam of 3.13m, compared to the 1986 Westerly Oceanlord at 12.04m (39.5ft) with a 3.81m beam. The 1986 Westerly Oceanlord is 2.61m longer than the Dufour 310 Grand Large. The 1986 Westerly Oceanlord displaces approximately 140% 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 1986 Westerly Oceanlord, with an SA/D of 14.90 and 68.0 m² of canvas, offers modest sail power for its displacement. The Dufour 310 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 1986 Westerly Oceanlord has a comfort ratio of 23.7 and a capsize screening value of 0.71. The ballast ratios are 29.6% for the Dufour 310 Grand Large and 36.4% for the 1986 Westerly Oceanlord, 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 1986 Westerly Oceanlord offers 7 berths in 3 cabins with 340L water and 182L fuel capacity.
Verdict
For cruising: The 1986 Westerly Oceanlord 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 310 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 1986 Westerly Oceanlord offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.
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Or view individual specs: Dufour 310 Grand Large · 1986 Westerly Oceanlord