Dufour 40 vs 1983 Pearson 31 — Comparison
Dufour 40
1983 Pearson 31
Specifications Side by Side
| Specification | Dufour 40 | 1983 Pearson 31 |
|---|---|---|
| General | ||
| Manufacturer | Dufour | Pearson |
| Year | 2007–2012 | 1983–1990 |
| Type | Sloop | Sloop |
| Country | France | USA |
| Designer | Umberto Felci | William Shaw |
| Dimensions | ||
| LOA | 12.05 m (39.5 ft) | 9.45 m (31.0 ft) |
| LWL | 10.55 m (34.6 ft) | 7.77 m (25.5 ft) |
| Beam | 3.85 m (12.6 ft) | 3.10 m (10.2 ft) |
| Draft | 1.95 m (6.4 ft) | 1.52 m (5.0 ft) |
| Weight | ||
| Displacement | 7,800 kg (17,196 lbs) | 4,309 kg (9,500 lbs) |
| Ballast | 2,400 kg (5,291 lbs) | 1,814 kg (3,999 lbs) |
| Sailing | ||
| Sail Area | 68.0 m² (732 ft²) | 40.0 m² (431 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 40 HP | 18 HP |
| Fuel Capacity | 160 L (42.3 gal) | 68 L (18.0 gal) |
| Water Capacity | 300 L (79.3 gal) | 114 L (30.1 gal) |
| Accommodation | ||
| Berths | 8 | 6 |
| Cabins | 3 | 2 |
Performance Comparison
Detailed Comparison
The Dufour 40 and 1983 Pearson 31 represent two takes on sloop-rigged sailing. The Dufour 40 is a 2000s design by Dufour from France, while the 1983 Pearson 31 is a 1980s offering from Pearson from USA. The Dufour 40 was penned by Umberto Felci. The 1983 Pearson 31 was designed by William Shaw.
In terms of size, the Dufour 40 measures 12.05m (39.5ft) overall with a beam of 3.85m, compared to the 1983 Pearson 31 at 9.45m (31.0ft) with a 3.10m beam. The Dufour 40 is 2.60m longer than the 1983 Pearson 31. The Dufour 40 displaces approximately 81% 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 1983 Pearson 31, with an SA/D of 15.35 and 40.0 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 1983 Pearson 31 has a comfort ratio of 21.4 and a capsize screening value of 0.76. The ballast ratios are 30.8% for the Dufour 40 and 42.1% for the 1983 Pearson 31, 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 1983 Pearson 31 offers 6 berths in 2 cabins with 114L water and 68L fuel capacity.
Verdict
For cruising: The 1983 Pearson 31 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.
Compare Different Boats
Looking for a different matchup? Browse All Boats
Or view individual specs: Dufour 40 · 1983 Pearson 31