2010 Jeanneau Sun Odyssey 409 vs 1991 Westerly Seahawk — Comparison

2010 Jeanneau Sun Odyssey 409
VS
1991 Westerly Seahawk1991 Westerly Seahawk

Specifications Side by Side

Specification2010 Jeanneau Sun Odyssey 4091991 Westerly Seahawk
General
ManufacturerJeanneauWesterly
Year2010–20161991–1997
TypeSloopSloop
CountryFranceUK
DesignerPhilippe BriandEd Dubois
Dimensions
LOA12.34 m (40.5 ft)10.36 m (34.0 ft)
LWL10.82 m (35.5 ft)8.53 m (28.0 ft)
Beam3.99 m (13.1 ft)3.35 m (11.0 ft)
Draft2.10 m (6.9 ft)1.80 m (5.9 ft)
Weight
Displacement8,100 kg (17,857 lbs)6,123 kg (13,499 lbs)
Ballast2,500 kg (5,512 lbs)2,495 kg (5,501 lbs)
Sailing
Sail Area71.5 m² (770 ft²)48.0 m² (517 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine40 HP28 HP
Fuel Capacity120 L (31.7 gal)114 L (30.1 gal)
Water Capacity250 L (66.0 gal)220 L (58.1 gal)
Accommodation
Berths87
Cabins33

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
2010 Jeanneau Sun Odyssey 409
18.01
1991 Westerly Seahawk
14.57
Ballast Ratio (Higher = more stability)
2010 Jeanneau Sun Odyssey 409
30.86
1991 Westerly Seahawk
40.75
Capsize Ratio (Lower = safer offshore)
2010 Jeanneau Sun Odyssey 409
0.80
1991 Westerly Seahawk
0.73
Comfort Ratio (Higher = gentler motion)
2010 Jeanneau Sun Odyssey 409
15.49
1991 Westerly Seahawk
22.81

Detailed Comparison

The 2010 Jeanneau Sun Odyssey 409 and 1991 Westerly Seahawk represent two takes on sloop-rigged sailing. The 2010 Jeanneau Sun Odyssey 409 is a modern design by Jeanneau from France, while the 1991 Westerly Seahawk is a 1990s offering from Westerly from UK. The 2010 Jeanneau Sun Odyssey 409 was penned by Philippe Briand. The 1991 Westerly Seahawk was designed by Ed Dubois.

In terms of size, the 2010 Jeanneau Sun Odyssey 409 measures 12.34m (40.5ft) overall with a beam of 3.99m, compared to the 1991 Westerly Seahawk at 10.36m (34.0ft) with a 3.35m beam. The 2010 Jeanneau Sun Odyssey 409 is 1.98m longer than the 1991 Westerly Seahawk. The 2010 Jeanneau Sun Odyssey 409 displaces approximately 32% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 2010 Jeanneau Sun Odyssey 409 has good sail power for versatile performance with an SA/D ratio of 18.01 and 71.5 m² of sail area. The 1991 Westerly Seahawk, with an SA/D of 14.57 and 48.0 m² of canvas, offers modest sail power for its displacement. The 2010 Jeanneau Sun Odyssey 409 has the edge in terms of raw sailing performance.

For comfort and safety, the 2010 Jeanneau Sun Odyssey 409 offers a firm, racing-oriented motion (comfort ratio: 15.5) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.80). The 1991 Westerly Seahawk has a comfort ratio of 22.8 and a capsize screening value of 0.73. The ballast ratios are 30.9% for the 2010 Jeanneau Sun Odyssey 409 and 40.8% for the 1991 Westerly Seahawk, reflecting their respective approaches to stability.

Below deck, the 2010 Jeanneau Sun Odyssey 409 provides 8 berths in 3 cabins with 250L of water capacity and 120L of fuel. The 1991 Westerly Seahawk offers 7 berths in 3 cabins with 220L water and 114L fuel capacity.

Verdict

For cruising: The 1991 Westerly Seahawk 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 2010 Jeanneau Sun Odyssey 409 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 2010 Jeanneau Sun Odyssey 409 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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