1965 Pearson Vanguard vs Dufour 310 Grand Large — Comparison

1965 Pearson Vanguard1965 Pearson Vanguard
VS
Dufour 310 Grand Large

Specifications Side by Side

Specification1965 Pearson VanguardDufour 310 Grand Large
General
ManufacturerPearsonDufour
Year1965–19722015–2020
TypeSloopSloop
CountryUSAFrance
DesignerPhilip RhodesFelci Yacht Design
Dimensions
LOA9.83 m (32.3 ft)9.43 m (30.9 ft)
LWL7.01 m (23.0 ft)8.45 m (27.7 ft)
Beam2.84 m (9.3 ft)3.13 m (10.3 ft)
Draft1.22 m (4.0 ft)1.60 m (5.2 ft)
Weight
Displacement4,082 kg (8,999 lbs)4,150 kg (9,149 lbs)
Ballast1,678 kg (3,699 lbs)1,230 kg (2,712 lbs)
Sailing
Sail Area36.0 m² (388 ft²)40.0 m² (431 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFullFin
Engine & Tanks
Engine10 HP15 HP
Fuel Capacity38 L (10.0 gal)80 L (21.1 gal)
Water Capacity57 L (15.1 gal)120 L (31.7 gal)
Accommodation
Berths54
Cabins11

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1965 Pearson Vanguard
14.32
Dufour 310 Grand Large
15.74
Ballast Ratio (Higher = more stability)
1965 Pearson Vanguard
41.11
Dufour 310 Grand Large
29.64
Capsize Ratio (Lower = safer offshore)
1965 Pearson Vanguard
0.71
Dufour 310 Grand Large
0.78
Comfort Ratio (Higher = gentler motion)
1965 Pearson Vanguard
25.31
Dufour 310 Grand Large
18.25

Detailed Comparison

The 1965 Pearson Vanguard and Dufour 310 Grand Large represent two takes on sloop-rigged sailing. The 1965 Pearson Vanguard is a classic design by Pearson from USA, while the Dufour 310 Grand Large is a modern offering from Dufour from France. The 1965 Pearson Vanguard was penned by Philip Rhodes. The Dufour 310 Grand Large was designed by Felci Yacht Design.

In terms of size, the 1965 Pearson Vanguard measures 9.83m (32.3ft) overall with a beam of 2.84m, compared to the Dufour 310 Grand Large at 9.43m (30.9ft) with a 3.13m beam. The 1965 Pearson Vanguard is 0.40m longer than the Dufour 310 Grand Large. The Dufour 310 Grand Large displaces approximately 2% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1965 Pearson Vanguard has modest sail power for its displacement with an SA/D ratio of 14.32 and 36.0 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 1965 Pearson Vanguard offers a moderate motion comfort level (comfort ratio: 25.3) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.71). The Dufour 310 Grand Large has a comfort ratio of 18.3 and a capsize screening value of 0.78. The ballast ratios are 41.1% for the 1965 Pearson Vanguard and 29.6% for the Dufour 310 Grand Large, reflecting their respective approaches to stability.

Below deck, the 1965 Pearson Vanguard provides 5 berths in 1 cabin with 57L of water capacity and 38L of fuel. The Dufour 310 Grand Large offers 4 berths in 1 cabin with 120L water and 80L fuel capacity.

Verdict

For cruising: The 1965 Pearson Vanguard 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 1965 Pearson Vanguard 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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