1978 Bristol 40 vs Dufour 365 Grand Large — Comparison

1978 Bristol 401978 Bristol 40
VS
Dufour 365 Grand Large

Specifications Side by Side

Specification1978 Bristol 40Dufour 365 Grand Large
General
ManufacturerBristolDufour
Year1978–19832003–2007
TypeSloopSloop
CountryUSAFrance
DesignerTed HoodUmberto Felci
Dimensions
LOA12.19 m (40.0 ft)10.97 m (36.0 ft)
LWL9.14 m (30.0 ft)9.72 m (31.9 ft)
Beam3.35 m (11.0 ft)3.52 m (11.5 ft)
Draft1.68 m (5.5 ft)1.80 m (5.9 ft)
Weight
Displacement8,165 kg (18,001 lbs)6,100 kg (13,448 lbs)
Ballast3,402 kg (7,500 lbs)1,850 kg (4,079 lbs)
Sailing
Sail Area62.4 m² (672 ft²)57.5 m² (619 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine35 HP21 HP
Fuel Capacity114 L (30.1 gal)120 L (31.7 gal)
Water Capacity189 L (49.9 gal)210 L (55.5 gal)
Accommodation
Berths76
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1978 Bristol 40
15.63
Dufour 365 Grand Large
17.50
Ballast Ratio (Higher = more stability)
1978 Bristol 40
41.67
Dufour 365 Grand Large
30.33
Capsize Ratio (Lower = safer offshore)
1978 Bristol 40
0.67
Dufour 365 Grand Large
0.77
Comfort Ratio (Higher = gentler motion)
1978 Bristol 40
24.80
Dufour 365 Grand Large
17.21

Detailed Comparison

The 1978 Bristol 40 and Dufour 365 Grand Large represent two takes on sloop-rigged sailing. The 1978 Bristol 40 is a 1970s design by Bristol from USA, while the Dufour 365 Grand Large is a 2000s offering from Dufour from France. The 1978 Bristol 40 was penned by Ted Hood. The Dufour 365 Grand Large was designed by Umberto Felci.

In terms of size, the 1978 Bristol 40 measures 12.19m (40.0ft) overall with a beam of 3.35m, compared to the Dufour 365 Grand Large at 10.97m (36.0ft) with a 3.52m beam. The 1978 Bristol 40 is 1.22m longer than the Dufour 365 Grand Large. The 1978 Bristol 40 displaces approximately 34% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1978 Bristol 40 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.63 and 62.4 m² of sail area. The Dufour 365 Grand Large, with an SA/D of 17.50 and 57.5 m² of canvas, offers good sail power for versatile performance. The Dufour 365 Grand Large has the edge in terms of raw sailing performance.

For comfort and safety, the 1978 Bristol 40 offers a moderate motion comfort level (comfort ratio: 24.8) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.67). The Dufour 365 Grand Large has a comfort ratio of 17.2 and a capsize screening value of 0.77. The ballast ratios are 41.7% for the 1978 Bristol 40 and 30.3% for the Dufour 365 Grand Large, reflecting their respective approaches to stability.

Below deck, the 1978 Bristol 40 provides 7 berths in 2 cabins with 189L of water capacity and 114L of fuel. The Dufour 365 Grand Large offers 6 berths in 2 cabins with 210L water and 120L fuel capacity.

Verdict

For cruising: The 1978 Bristol 40 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 365 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 1978 Bristol 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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