Dufour 310 Grand Large vs 2004 Najad 405 — Comparison
Specifications Side by Side
| Specification | Dufour 310 Grand Large | 2004 Najad 405 |
|---|---|---|
| General | ||
| Manufacturer | Dufour | Najad |
| Year | 2015–2020 | 2004–2012 |
| Type | Sloop | Sloop |
| Country | France | Sweden |
| Designer | Felci Yacht Design | Judel/Vrolijk |
| Dimensions | ||
| LOA | 9.43 m (30.9 ft) | 12.40 m (40.7 ft) |
| LWL | 8.45 m (27.7 ft) | 10.40 m (34.1 ft) |
| Beam | 3.13 m (10.3 ft) | 3.82 m (12.5 ft) |
| Draft | 1.60 m (5.2 ft) | 2.00 m (6.6 ft) |
| Weight | ||
| Displacement | 4,150 kg (9,149 lbs) | 9,200 kg (20,283 lbs) |
| Ballast | 1,230 kg (2,712 lbs) | 3,600 kg (7,937 lbs) |
| Sailing | ||
| Sail Area | 40.0 m² (431 ft²) | 73.0 m² (786 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 15 HP | 55 HP |
| Fuel Capacity | 80 L (21.1 gal) | 200 L (52.8 gal) |
| Water Capacity | 120 L (31.7 gal) | 350 L (92.5 gal) |
| Accommodation | ||
| Berths | 4 | 7 |
| Cabins | 1 | 3 |
Performance Comparison
Detailed Comparison
The Dufour 310 Grand Large and 2004 Najad 405 represent two takes on sloop-rigged sailing. The Dufour 310 Grand Large is a modern design by Dufour from France, while the 2004 Najad 405 is a 2000s offering from Najad from Sweden. The Dufour 310 Grand Large was penned by Felci Yacht Design. The 2004 Najad 405 was designed by Judel/Vrolijk.
In terms of size, the Dufour 310 Grand Large measures 9.43m (30.9ft) overall with a beam of 3.13m, compared to the 2004 Najad 405 at 12.40m (40.7ft) with a 3.82m beam. The 2004 Najad 405 is 2.97m longer than the Dufour 310 Grand Large. The 2004 Najad 405 displaces approximately 122% 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 2004 Najad 405, with an SA/D of 16.89 and 73.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 2004 Najad 405 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 2004 Najad 405 has a comfort ratio of 19.6 and a capsize screening value of 0.73. The ballast ratios are 29.6% for the Dufour 310 Grand Large and 39.1% for the 2004 Najad 405, 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 2004 Najad 405 offers 7 berths in 3 cabins with 350L water and 200L fuel capacity.
Verdict
For cruising: The 2004 Najad 405 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 2004 Najad 405 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The 2004 Najad 405 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 · 2004 Najad 405