1993 Moody 31 vs Dufour 310 Grand Large — Comparison

1993 Moody 311993 Moody 31
VS
Dufour 310 Grand Large

Specifications Side by Side

Specification1993 Moody 31Dufour 310 Grand Large
General
ManufacturerMoodyDufour
Year1993–20002015–2020
TypeSloopSloop
CountryUKFrance
DesignerBill DixonFelci Yacht Design
Dimensions
LOA9.45 m (31.0 ft)9.43 m (30.9 ft)
LWL7.80 m (25.6 ft)8.45 m (27.7 ft)
Beam3.13 m (10.3 ft)3.13 m (10.3 ft)
Draft1.52 m (5.0 ft)1.60 m (5.2 ft)
Weight
Displacement4,500 kg (9,921 lbs)4,150 kg (9,149 lbs)
Ballast1,800 kg (3,968 lbs)1,230 kg (2,712 lbs)
Sailing
Sail Area40.5 m² (436 ft²)40.0 m² (431 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeBilgeFin
Engine & Tanks
Engine18 HP15 HP
Fuel Capacity68 L (18.0 gal)80 L (21.1 gal)
Water Capacity114 L (30.1 gal)120 L (31.7 gal)
Accommodation
Berths64
Cabins21

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1993 Moody 31
15.10
Dufour 310 Grand Large
15.74
Ballast Ratio (Higher = more stability)
1993 Moody 31
40.00
Dufour 310 Grand Large
29.64
Capsize Ratio (Lower = safer offshore)
1993 Moody 31
0.76
Dufour 310 Grand Large
0.78
Comfort Ratio (Higher = gentler motion)
1993 Moody 31
21.98
Dufour 310 Grand Large
18.25

Detailed Comparison

The 1993 Moody 31 and Dufour 310 Grand Large represent two takes on sloop-rigged sailing. The 1993 Moody 31 is a 1990s design by Moody from UK, while the Dufour 310 Grand Large is a modern offering from Dufour from France. The 1993 Moody 31 was penned by Bill Dixon. The Dufour 310 Grand Large was designed by Felci Yacht Design.

In terms of size, the 1993 Moody 31 measures 9.45m (31.0ft) overall with a beam of 3.13m, compared to the Dufour 310 Grand Large at 9.43m (30.9ft) with a 3.13m beam. The 1993 Moody 31 is 0.02m longer than the Dufour 310 Grand Large. The 1993 Moody 31 displaces approximately 8% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1993 Moody 31 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.10 and 40.5 m² of sail area. The Dufour 310 Grand Large, with an SA/D of 15.74 and 40.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Dufour 310 Grand Large has the edge in terms of raw sailing performance.

For comfort and safety, the 1993 Moody 31 offers a moderate motion comfort level (comfort ratio: 22.0) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.76). The Dufour 310 Grand Large has a comfort ratio of 18.3 and a capsize screening value of 0.78. The ballast ratios are 40.0% for the 1993 Moody 31 and 29.6% for the Dufour 310 Grand Large, reflecting their respective approaches to stability.

Below deck, the 1993 Moody 31 provides 6 berths in 2 cabins with 114L of water capacity and 68L of fuel. The Dufour 310 Grand Large offers 4 berths in 1 cabin with 120L water and 80L fuel capacity.

Verdict

For cruising: The 1993 Moody 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 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 1993 Moody 31 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: 1993 Moody 31 · Dufour 310 Grand Large