Dufour 40 vs 1985 Irwin 38 — Comparison
Dufour 40
Specifications Side by Side
| Specification | Dufour 40 | 1985 Irwin 38 |
|---|---|---|
| General | ||
| Manufacturer | Dufour | Irwin |
| Year | 2007–2012 | 1985–1991 |
| Type | Sloop | Sloop |
| Country | France | USA |
| Designer | Umberto Felci | Ted Irwin |
| Dimensions | ||
| LOA | 12.05 m (39.5 ft) | 11.58 m (38.0 ft) |
| LWL | 10.55 m (34.6 ft) | 9.45 m (31.0 ft) |
| Beam | 3.85 m (12.6 ft) | 3.66 m (12.0 ft) |
| Draft | 1.95 m (6.4 ft) | 1.83 m (6.0 ft) |
| Weight | ||
| Displacement | 7,800 kg (17,196 lbs) | 7,484 kg (16,499 lbs) |
| Ballast | 2,400 kg (5,291 lbs) | 3,175 kg (7,000 lbs) |
| Sailing | ||
| Sail Area | 68.0 m² (732 ft²) | 60.0 m² (646 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 40 HP | 35 HP |
| Fuel Capacity | 160 L (42.3 gal) | 114 L (30.1 gal) |
| Water Capacity | 300 L (79.3 gal) | 227 L (60.0 gal) |
| Accommodation | ||
| Berths | 8 | 7 |
| Cabins | 3 | 2 |
Performance Comparison
Detailed Comparison
The Dufour 40 and 1985 Irwin 38 represent two takes on sloop-rigged sailing. The Dufour 40 is a 2000s design by Dufour from France, while the 1985 Irwin 38 is a 1980s offering from Irwin from USA. The Dufour 40 was penned by Umberto Felci. The 1985 Irwin 38 was designed by Ted Irwin.
In terms of size, the Dufour 40 measures 12.05m (39.5ft) overall with a beam of 3.85m, compared to the 1985 Irwin 38 at 11.58m (38.0ft) with a 3.66m beam. The Dufour 40 is 0.47m longer than the 1985 Irwin 38. The Dufour 40 displaces approximately 4% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the Dufour 40 has good sail power for versatile performance with an SA/D ratio of 17.56 and 68.0 m² of sail area. The 1985 Irwin 38, with an SA/D of 15.93 and 60.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Dufour 40 has the edge in terms of raw sailing performance.
For comfort and safety, the Dufour 40 offers a firm, racing-oriented motion (comfort ratio: 16.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.78). The 1985 Irwin 38 has a comfort ratio of 20.1 and a capsize screening value of 0.75. The ballast ratios are 30.8% for the Dufour 40 and 42.4% for the 1985 Irwin 38, reflecting their respective approaches to stability.
Below deck, the Dufour 40 provides 8 berths in 3 cabins with 300L of water capacity and 160L of fuel. The 1985 Irwin 38 offers 7 berths in 2 cabins with 227L water and 114L fuel capacity.
Verdict
For cruising: The 1985 Irwin 38 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 40 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 40 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 40 · 1985 Irwin 38