1978 Bristol 40 vs Hunter 31 — Comparison

1978 Bristol 401978 Bristol 40
VS
Hunter 31Hunter 31

Specifications Side by Side

Specification1978 Bristol 40Hunter 31
General
ManufacturerBristolHunter
Year1978–19832000–2005
TypeSloopSloop
CountryUSAUSA
DesignerTed HoodGlenn Henderson
Dimensions
LOA12.19 m (40.0 ft)9.45 m (31.0 ft)
LWL9.14 m (30.0 ft)8.23 m (27.0 ft)
Beam3.35 m (11.0 ft)3.12 m (10.2 ft)
Draft1.68 m (5.5 ft)1.68 m (5.5 ft)
Weight
Displacement8,165 kg (18,001 lbs)4,082 kg (8,999 lbs)
Ballast3,402 kg (7,500 lbs)1,588 kg (3,501 lbs)
Sailing
Sail Area62.4 m² (672 ft²)44.0 m² (474 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine35 HP18 HP
Fuel Capacity114 L (30.1 gal)57 L (15.1 gal)
Water Capacity189 L (49.9 gal)114 L (30.1 gal)
Accommodation
Berths76
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1978 Bristol 40
15.63
Hunter 31
17.51
Ballast Ratio (Higher = more stability)
1978 Bristol 40
41.67
Hunter 31
38.90
Capsize Ratio (Lower = safer offshore)
1978 Bristol 40
0.67
Hunter 31
0.78
Comfort Ratio (Higher = gentler motion)
1978 Bristol 40
24.80
Hunter 31
18.65

Detailed Comparison

The 1978 Bristol 40 and Hunter 31 represent two takes on sloop-rigged sailing. The 1978 Bristol 40 is a 1970s design by Bristol from USA, while the Hunter 31 is a 2000s offering from Hunter from USA. The 1978 Bristol 40 was penned by Ted Hood. The Hunter 31 was designed by Glenn Henderson.

In terms of size, the 1978 Bristol 40 measures 12.19m (40.0ft) overall with a beam of 3.35m, compared to the Hunter 31 at 9.45m (31.0ft) with a 3.12m beam. The 1978 Bristol 40 is 2.74m longer than the Hunter 31. The 1978 Bristol 40 displaces approximately 100% 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 Hunter 31, with an SA/D of 17.51 and 44.0 m² of canvas, offers good sail power for versatile performance. The Hunter 31 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 Hunter 31 has a comfort ratio of 18.7 and a capsize screening value of 0.78. The ballast ratios are 41.7% for the 1978 Bristol 40 and 38.9% for the Hunter 31, 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 Hunter 31 offers 6 berths in 2 cabins with 114L water and 57L 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 Hunter 31 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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Or view individual specs: 1978 Bristol 40 · Hunter 31