Dufour 310 Grand Large vs 1980 Contest 33 — Comparison

Dufour 310 Grand Large
VS
1980 Contest 331980 Contest 33

Specifications Side by Side

SpecificationDufour 310 Grand Large1980 Contest 33
General
ManufacturerDufourContest
Year2015–20201980–1990
TypeSloopSloop
CountryFranceNetherlands
DesignerFelci Yacht DesignDick Zaal
Dimensions
LOA9.43 m (30.9 ft)10.06 m (33.0 ft)
LWL8.45 m (27.7 ft)8.23 m (27.0 ft)
Beam3.13 m (10.3 ft)3.20 m (10.5 ft)
Draft1.60 m (5.2 ft)1.60 m (5.2 ft)
Weight
Displacement4,150 kg (9,149 lbs)5,200 kg (11,464 lbs)
Ballast1,230 kg (2,712 lbs)2,100 kg (4,630 lbs)
Sailing
Sail Area40.0 m² (431 ft²)44.0 m² (474 ft²)
Hull MaterialFiberglassSteel
Keel TypeFinFin
Engine & Tanks
Engine15 HP22 HP
Fuel Capacity80 L (21.1 gal)100 L (26.4 gal)
Water Capacity120 L (31.7 gal)200 L (52.8 gal)
Accommodation
Berths46
Cabins12

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Dufour 310 Grand Large
15.74
1980 Contest 33
14.90
Ballast Ratio (Higher = more stability)
Dufour 310 Grand Large
29.64
1980 Contest 33
40.38
Capsize Ratio (Lower = safer offshore)
Dufour 310 Grand Large
0.78
1980 Contest 33
0.74
Comfort Ratio (Higher = gentler motion)
Dufour 310 Grand Large
18.25
1980 Contest 33
22.02

Detailed Comparison

The Dufour 310 Grand Large and 1980 Contest 33 represent two takes on sloop-rigged sailing. The Dufour 310 Grand Large is a modern design by Dufour from France, while the 1980 Contest 33 is a 1980s offering from Contest from Netherlands. The Dufour 310 Grand Large was penned by Felci Yacht Design. The 1980 Contest 33 was designed by Dick Zaal.

In terms of size, the Dufour 310 Grand Large measures 9.43m (30.9ft) overall with a beam of 3.13m, compared to the 1980 Contest 33 at 10.06m (33.0ft) with a 3.20m beam. The 1980 Contest 33 is 0.63m longer than the Dufour 310 Grand Large. The 1980 Contest 33 displaces approximately 25% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the Dufour 310 Grand Large has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.74 and 40.0 m² of sail area. The 1980 Contest 33, with an SA/D of 14.90 and 44.0 m² of canvas, offers modest sail power for its displacement. The Dufour 310 Grand Large has the edge in terms of raw sailing performance.

For comfort and safety, the Dufour 310 Grand Large offers a firm, racing-oriented motion (comfort ratio: 18.3) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.78). The 1980 Contest 33 has a comfort ratio of 22.0 and a capsize screening value of 0.74. The ballast ratios are 29.6% for the Dufour 310 Grand Large and 40.4% for the 1980 Contest 33, reflecting their respective approaches to stability.

Below deck, the Dufour 310 Grand Large provides 4 berths in 1 cabin with 120L of water capacity and 80L of fuel. The 1980 Contest 33 offers 6 berths in 2 cabins with 200L water and 100L fuel capacity.

Verdict

For cruising: The 1980 Contest 33 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 310 Grand Large has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1980 Contest 33 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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