Dufour 40 vs 1984 Pearson 34 — Comparison

Dufour 40Dufour 40
VS
1984 Pearson 341984 Pearson 34

Specifications Side by Side

SpecificationDufour 401984 Pearson 34
General
ManufacturerDufourPearson
Year2007–20121984–1990
TypeSloopSloop
CountryFranceUSA
DesignerUmberto FelciWilliam Shaw
Dimensions
LOA12.05 m (39.5 ft)10.36 m (34.0 ft)
LWL10.55 m (34.6 ft)8.53 m (28.0 ft)
Beam3.85 m (12.6 ft)3.35 m (11.0 ft)
Draft1.95 m (6.4 ft)1.60 m (5.2 ft)
Weight
Displacement7,800 kg (17,196 lbs)5,443 kg (12,000 lbs)
Ballast2,400 kg (5,291 lbs)2,268 kg (5,000 lbs)
Sailing
Sail Area68.0 m² (732 ft²)46.0 m² (495 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine40 HP20 HP
Fuel Capacity160 L (42.3 gal)76 L (20.1 gal)
Water Capacity300 L (79.3 gal)152 L (40.2 gal)
Accommodation
Berths86
Cabins32

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Dufour 40
17.56
1984 Pearson 34
15.11
Ballast Ratio (Higher = more stability)
Dufour 40
30.77
1984 Pearson 34
41.67
Capsize Ratio (Lower = safer offshore)
Dufour 40
0.78
1984 Pearson 34
0.76
Comfort Ratio (Higher = gentler motion)
Dufour 40
16.44
1984 Pearson 34
20.28

Detailed Comparison

The Dufour 40 and 1984 Pearson 34 represent two takes on sloop-rigged sailing. The Dufour 40 is a 2000s design by Dufour from France, while the 1984 Pearson 34 is a 1980s offering from Pearson from USA. The Dufour 40 was penned by Umberto Felci. The 1984 Pearson 34 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 1984 Pearson 34 at 10.36m (34.0ft) with a 3.35m beam. The Dufour 40 is 1.69m longer than the 1984 Pearson 34. The Dufour 40 displaces approximately 43% 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 1984 Pearson 34, with an SA/D of 15.11 and 46.0 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 1984 Pearson 34 has a comfort ratio of 20.3 and a capsize screening value of 0.76. The ballast ratios are 30.8% for the Dufour 40 and 41.7% for the 1984 Pearson 34, 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 1984 Pearson 34 offers 6 berths in 2 cabins with 152L water and 76L fuel capacity.

Verdict

For cruising: The 1984 Pearson 34 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 · 1984 Pearson 34