1982 S2 11.0A vs Dufour 40 — Comparison

1982 S2 11.0A1982 S2 11.0A
VS
Dufour 40Dufour 40

Specifications Side by Side

Specification1982 S2 11.0ADufour 40
General
ManufacturerS2Dufour
Year1982–19872007–2012
TypeSloopSloop
CountryUSAFrance
DesignerArthur EdmundsUmberto Felci
Dimensions
LOA10.97 m (36.0 ft)12.05 m (39.5 ft)
LWL9.14 m (30.0 ft)10.55 m (34.6 ft)
Beam3.40 m (11.2 ft)3.85 m (12.6 ft)
Draft1.68 m (5.5 ft)1.95 m (6.4 ft)
Weight
Displacement5,670 kg (12,500 lbs)7,800 kg (17,196 lbs)
Ballast2,268 kg (5,000 lbs)2,400 kg (5,291 lbs)
Sailing
Sail Area55.0 m² (592 ft²)68.0 m² (732 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP40 HP
Fuel Capacity76 L (20.1 gal)160 L (42.3 gal)
Water Capacity114 L (30.1 gal)300 L (79.3 gal)
Accommodation
Berths68
Cabins23

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1982 S2 11.0A
17.57
Dufour 40
17.56
Ballast Ratio (Higher = more stability)
1982 S2 11.0A
40.00
Dufour 40
30.77
Capsize Ratio (Lower = safer offshore)
1982 S2 11.0A
0.76
Dufour 40
0.78
Comfort Ratio (Higher = gentler motion)
1982 S2 11.0A
18.18
Dufour 40
16.44

Detailed Comparison

The 1982 S2 11.0A and Dufour 40 represent two takes on sloop-rigged sailing. The 1982 S2 11.0A is a 1980s design by S2 from USA, while the Dufour 40 is a 2000s offering from Dufour from France. The 1982 S2 11.0A was penned by Arthur Edmunds. The Dufour 40 was designed by Umberto Felci.

In terms of size, the 1982 S2 11.0A measures 10.97m (36.0ft) overall with a beam of 3.40m, compared to the Dufour 40 at 12.05m (39.5ft) with a 3.85m beam. The Dufour 40 is 1.08m longer than the 1982 S2 11.0A. The Dufour 40 displaces approximately 38% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1982 S2 11.0A has good sail power for versatile performance with an SA/D ratio of 17.57 and 55.0 m² of sail area. The Dufour 40, with an SA/D of 17.56 and 68.0 m² of canvas, offers good sail power for versatile performance. The 1982 S2 11.0A has the edge in terms of raw sailing performance.

For comfort and safety, the 1982 S2 11.0A offers a firm, racing-oriented motion (comfort ratio: 18.2) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.76). The Dufour 40 has a comfort ratio of 16.4 and a capsize screening value of 0.78. The ballast ratios are 40.0% for the 1982 S2 11.0A and 30.8% for the Dufour 40, reflecting their respective approaches to stability.

Below deck, the 1982 S2 11.0A provides 6 berths in 2 cabins with 114L of water capacity and 76L of fuel. The Dufour 40 offers 8 berths in 3 cabins with 300L water and 160L fuel capacity.

Verdict

For cruising: The 1982 S2 11.0A 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 1982 S2 11.0A 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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