Jeanneau Sun Loft 47 vs Dufour 520 Grand Large — Comparison

Jeanneau Sun Loft 47
VS
Dufour 520 Grand Large

Specifications Side by Side

SpecificationJeanneau Sun Loft 47Dufour 520 Grand Large
General
ManufacturerJeanneauDufour
Year20192012–2017
TypeSloopSloop
CountryFranceFrance
DesignerPhilippe BriandFelci Yacht Design
Dimensions
LOA14.20 m (46.6 ft)15.80 m (51.8 ft)
LWL13.00 m (42.7 ft)13.85 m (45.4 ft)
Beam4.49 m (14.7 ft)4.69 m (15.4 ft)
Draft2.20 m (7.2 ft)2.45 m (8.0 ft)
Weight
Displacement11,500 kg (25,353 lbs)14,500 kg (31,967 lbs)
Ballast3,200 kg (7,055 lbs)4,600 kg (10,141 lbs)
Sailing
Sail Area88.0 m² (947 ft²)110.0 m² (1,184 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine57 HP75 HP
Fuel Capacity200 L (52.8 gal)300 L (79.3 gal)
Water Capacity400 L (105.7 gal)550 L (145.3 gal)
Accommodation
Berths1210
Cabins44

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Jeanneau Sun Loft 47
17.55
Dufour 520 Grand Large
18.79
Ballast Ratio (Higher = more stability)
Jeanneau Sun Loft 47
27.83
Dufour 520 Grand Large
31.72
Capsize Ratio (Lower = safer offshore)
Jeanneau Sun Loft 47
0.80
Dufour 520 Grand Large
0.77
Comfort Ratio (Higher = gentler motion)
Jeanneau Sun Loft 47
13.39
Dufour 520 Grand Large
13.64

Detailed Comparison

The Jeanneau Sun Loft 47 and Dufour 520 Grand Large represent two takes on sloop-rigged sailing. The Jeanneau Sun Loft 47 is a modern design by Jeanneau from France, while the Dufour 520 Grand Large is a modern offering from Dufour from France. The Jeanneau Sun Loft 47 was penned by Philippe Briand. The Dufour 520 Grand Large was designed by Felci Yacht Design.

In terms of size, the Jeanneau Sun Loft 47 measures 14.20m (46.6ft) overall with a beam of 4.49m, compared to the Dufour 520 Grand Large at 15.80m (51.8ft) with a 4.69m beam. The Dufour 520 Grand Large is 1.60m longer than the Jeanneau Sun Loft 47. The Dufour 520 Grand Large displaces approximately 26% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the Jeanneau Sun Loft 47 has good sail power for versatile performance with an SA/D ratio of 17.55 and 88.0 m² of sail area. The Dufour 520 Grand Large, with an SA/D of 18.79 and 110.0 m² of canvas, offers good sail power for versatile performance. The Dufour 520 Grand Large has the edge in terms of raw sailing performance.

For comfort and safety, the Jeanneau Sun Loft 47 offers a firm, racing-oriented motion (comfort ratio: 13.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.80). The Dufour 520 Grand Large has a comfort ratio of 13.6 and a capsize screening value of 0.77. The ballast ratios are 27.8% for the Jeanneau Sun Loft 47 and 31.7% for the Dufour 520 Grand Large, reflecting their respective approaches to stability.

Below deck, the Jeanneau Sun Loft 47 provides 12 berths in 4 cabins with 400L of water capacity and 200L of fuel. The Dufour 520 Grand Large offers 10 berths in 4 cabins with 550L water and 300L fuel capacity.

Verdict

For cruising: The Dufour 520 Grand Large 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 520 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 Jeanneau Sun Loft 47 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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