Dufour 520 Grand Large vs 2008 Oyster 56 — Comparison
Dufour 520 Grand Large
2008 Oyster 56
Specifications Side by Side
| Specification | Dufour 520 Grand Large | 2008 Oyster 56 |
|---|---|---|
| General | ||
| Manufacturer | Dufour | Oyster |
| Year | 2012–2017 | 2008–2015 |
| Type | Sloop | Sloop |
| Country | France | United Kingdom |
| Designer | Felci Yacht Design | Rob Humphreys |
| Dimensions | ||
| LOA | 15.80 m (51.8 ft) | 17.10 m (56.1 ft) |
| LWL | 13.85 m (45.4 ft) | 14.30 m (46.9 ft) |
| Beam | 4.69 m (15.4 ft) | 4.72 m (15.5 ft) |
| Draft | 2.45 m (8.0 ft) | 2.35 m (7.7 ft) |
| Weight | ||
| Displacement | 14,500 kg (31,967 lbs) | 21,000 kg (46,297 lbs) |
| Ballast | 4,600 kg (10,141 lbs) | 7,800 kg (17,196 lbs) |
| Sailing | ||
| Sail Area | 110.0 m² (1,184 ft²) | 128.0 m² (1,378 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 75 HP | 150 HP |
| Fuel Capacity | 300 L (79.3 gal) | 500 L (132.1 gal) |
| Water Capacity | 550 L (145.3 gal) | 850 L (224.5 gal) |
| Accommodation | ||
| Berths | 10 | 8 |
| Cabins | 4 | 4 |
Performance Comparison
Detailed Comparison
The Dufour 520 Grand Large and 2008 Oyster 56 represent two takes on sloop-rigged sailing. The Dufour 520 Grand Large is a modern design by Dufour from France, while the 2008 Oyster 56 is a 2000s offering from Oyster from United Kingdom. The Dufour 520 Grand Large was penned by Felci Yacht Design. The 2008 Oyster 56 was designed by Rob Humphreys.
In terms of size, the Dufour 520 Grand Large measures 15.80m (51.8ft) overall with a beam of 4.69m, compared to the 2008 Oyster 56 at 17.10m (56.1ft) with a 4.72m beam. The 2008 Oyster 56 is 1.30m longer than the Dufour 520 Grand Large. The 2008 Oyster 56 displaces approximately 45% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the Dufour 520 Grand Large has good sail power for versatile performance with an SA/D ratio of 18.79 and 110.0 m² of sail area. The 2008 Oyster 56, with an SA/D of 17.08 and 128.0 m² of canvas, offers good sail power for versatile performance. The Dufour 520 Grand Large has the edge in terms of raw sailing performance.
For comfort and safety, the Dufour 520 Grand Large offers a firm, racing-oriented motion (comfort ratio: 13.6) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.77). The 2008 Oyster 56 has a comfort ratio of 17.8 and a capsize screening value of 0.69. The ballast ratios are 31.7% for the Dufour 520 Grand Large and 37.1% for the 2008 Oyster 56, reflecting their respective approaches to stability.
Below deck, the Dufour 520 Grand Large provides 10 berths in 4 cabins with 550L of water capacity and 300L of fuel. The 2008 Oyster 56 offers 8 berths in 4 cabins with 850L water and 500L fuel capacity.
Verdict
For cruising: The 2008 Oyster 56 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 520 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 520 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.