Dufour 520 Grand Large vs 2005 Oyster 54 — Comparison
Dufour 520 Grand Large
2005 Oyster 54
Specifications Side by Side
| Specification | Dufour 520 Grand Large | 2005 Oyster 54 |
|---|---|---|
| General | ||
| Manufacturer | Dufour | Oyster |
| Year | 2012–2017 | 2005–2012 |
| Type | Sloop | Sloop |
| Country | France | United Kingdom |
| Designer | Felci Yacht Design | Rob Humphreys |
| Dimensions | ||
| LOA | 15.80 m (51.8 ft) | 16.46 m (54.0 ft) |
| LWL | 13.85 m (45.4 ft) | 13.70 m (44.9 ft) |
| Beam | 4.69 m (15.4 ft) | 4.60 m (15.1 ft) |
| Draft | 2.45 m (8.0 ft) | 2.30 m (7.5 ft) |
| Weight | ||
| Displacement | 14,500 kg (31,967 lbs) | 19,000 kg (41,888 lbs) |
| Ballast | 4,600 kg (10,141 lbs) | 7,200 kg (15,873 lbs) |
| Sailing | ||
| Sail Area | 110.0 m² (1,184 ft²) | 120.0 m² (1,292 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 75 HP | 130 HP |
| Fuel Capacity | 300 L (79.3 gal) | 420 L (111.0 gal) |
| Water Capacity | 550 L (145.3 gal) | 750 L (198.1 gal) |
| Accommodation | ||
| Berths | 10 | 8 |
| Cabins | 4 | 3 |
Performance Comparison
Detailed Comparison
The Dufour 520 Grand Large and 2005 Oyster 54 represent two takes on sloop-rigged sailing. The Dufour 520 Grand Large is a modern design by Dufour from France, while the 2005 Oyster 54 is a 2000s offering from Oyster from United Kingdom. The Dufour 520 Grand Large was penned by Felci Yacht Design. The 2005 Oyster 54 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 2005 Oyster 54 at 16.46m (54.0ft) with a 4.60m beam. The 2005 Oyster 54 is 0.66m longer than the Dufour 520 Grand Large. The 2005 Oyster 54 displaces approximately 31% 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 2005 Oyster 54, with an SA/D of 17.12 and 120.0 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 2005 Oyster 54 has a comfort ratio of 18.1 and a capsize screening value of 0.69. The ballast ratios are 31.7% for the Dufour 520 Grand Large and 37.9% for the 2005 Oyster 54, 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 2005 Oyster 54 offers 8 berths in 3 cabins with 750L water and 420L fuel capacity.
Verdict
For cruising: The 2005 Oyster 54 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.