Dufour 40 vs 1988 Westerly Corsair — Comparison

Dufour 40Dufour 40
VS
1988 Westerly Corsair1988 Westerly Corsair

Specifications Side by Side

SpecificationDufour 401988 Westerly Corsair
General
ManufacturerDufourWesterly
Year2007–20121988–1994
TypeSloopSloop
CountryFranceUK
DesignerUmberto FelciEd Dubois
Dimensions
LOA12.05 m (39.5 ft)11.00 m (36.1 ft)
LWL10.55 m (34.6 ft)9.14 m (30.0 ft)
Beam3.85 m (12.6 ft)3.50 m (11.5 ft)
Draft1.95 m (6.4 ft)1.07 m (3.5 ft)
Weight
Displacement7,800 kg (17,196 lbs)6,350 kg (13,999 lbs)
Ballast2,400 kg (5,291 lbs)2,450 kg (5,401 lbs)
Sailing
Sail Area68.0 m² (732 ft²)50.0 m² (538 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinBilge
Engine & Tanks
Engine40 HP28 HP
Fuel Capacity160 L (42.3 gal)100 L (26.4 gal)
Water Capacity300 L (79.3 gal)200 L (52.8 gal)
Accommodation
Berths87
Cabins33

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Dufour 40
17.56
1988 Westerly Corsair
14.81
Ballast Ratio (Higher = more stability)
Dufour 40
30.77
1988 Westerly Corsair
38.58
Capsize Ratio (Lower = safer offshore)
Dufour 40
0.78
1988 Westerly Corsair
0.76
Comfort Ratio (Higher = gentler motion)
Dufour 40
16.44
1988 Westerly Corsair
19.55

Detailed Comparison

The Dufour 40 and 1988 Westerly Corsair represent two takes on sloop-rigged sailing. The Dufour 40 is a 2000s design by Dufour from France, while the 1988 Westerly Corsair is a 1980s offering from Westerly from UK. The Dufour 40 was penned by Umberto Felci. The 1988 Westerly Corsair was designed by Ed Dubois.

In terms of size, the Dufour 40 measures 12.05m (39.5ft) overall with a beam of 3.85m, compared to the 1988 Westerly Corsair at 11.00m (36.1ft) with a 3.50m beam. The Dufour 40 is 1.05m longer than the 1988 Westerly Corsair. The Dufour 40 displaces approximately 23% 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 1988 Westerly Corsair, with an SA/D of 14.81 and 50.0 m² of canvas, offers modest sail power for its displacement. 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 1988 Westerly Corsair has a comfort ratio of 19.6 and a capsize screening value of 0.76. The ballast ratios are 30.8% for the Dufour 40 and 38.6% for the 1988 Westerly Corsair, 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 1988 Westerly Corsair offers 7 berths in 3 cabins with 200L water and 100L fuel capacity.

Verdict

For cruising: The 1988 Westerly Corsair 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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