Jeanneau Sun Odyssey 349 (2019) vs 1984 O'Day 30 — Comparison

Jeanneau Sun Odyssey 349 (2019)
VS
1984 O'Day 30

Specifications Side by Side

SpecificationJeanneau Sun Odyssey 349 (2019)1984 O'Day 30
General
ManufacturerJeanneauO'Day
Year20191984–1989
TypeSloopSloop
CountryFranceUSA
DesignerMarc LombardC. Raymond Hunt
Dimensions
LOA10.34 m (33.9 ft)9.14 m (30.0 ft)
LWL9.44 m (31.0 ft)7.62 m (25.0 ft)
Beam3.44 m (11.3 ft)3.05 m (10.0 ft)
Draft1.98 m (6.5 ft)1.52 m (5.0 ft)
Weight
Displacement5,700 kg (12,566 lbs)3,629 kg (8,001 lbs)
Ballast1,700 kg (3,748 lbs)1,452 kg (3,201 lbs)
Sailing
Sail Area55.0 m² (592 ft²)36.0 m² (388 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine21 HP13 HP
Fuel Capacity140 L (37.0 gal)57 L (15.1 gal)
Water Capacity200 L (52.8 gal)76 L (20.1 gal)
Accommodation
Berths66
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Jeanneau Sun Odyssey 349 (2019)
17.51
1984 O'Day 30
15.49
Ballast Ratio (Higher = more stability)
Jeanneau Sun Odyssey 349 (2019)
29.82
1984 O'Day 30
40.01
Capsize Ratio (Lower = safer offshore)
Jeanneau Sun Odyssey 349 (2019)
0.77
1984 O'Day 30
0.79
Comfort Ratio (Higher = gentler motion)
Jeanneau Sun Odyssey 349 (2019)
17.92
1984 O'Day 30
19.36

Detailed Comparison

The Jeanneau Sun Odyssey 349 (2019) and 1984 O'Day 30 represent two takes on sloop-rigged sailing. The Jeanneau Sun Odyssey 349 (2019) is a modern design by Jeanneau from France, while the 1984 O'Day 30 is a 1980s offering from O'Day from USA. The Jeanneau Sun Odyssey 349 (2019) was penned by Marc Lombard. The 1984 O'Day 30 was designed by C. Raymond Hunt.

In terms of size, the Jeanneau Sun Odyssey 349 (2019) measures 10.34m (33.9ft) overall with a beam of 3.44m, compared to the 1984 O'Day 30 at 9.14m (30.0ft) with a 3.05m beam. The Jeanneau Sun Odyssey 349 (2019) is 1.20m longer than the 1984 O'Day 30. The Jeanneau Sun Odyssey 349 (2019) displaces approximately 57% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the Jeanneau Sun Odyssey 349 (2019) has good sail power for versatile performance with an SA/D ratio of 17.51 and 55.0 m² of sail area. The 1984 O'Day 30, with an SA/D of 15.49 and 36.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Jeanneau Sun Odyssey 349 (2019) has the edge in terms of raw sailing performance.

For comfort and safety, the Jeanneau Sun Odyssey 349 (2019) offers a firm, racing-oriented motion (comfort ratio: 17.9) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.77). The 1984 O'Day 30 has a comfort ratio of 19.4 and a capsize screening value of 0.79. The ballast ratios are 29.8% for the Jeanneau Sun Odyssey 349 (2019) and 40.0% for the 1984 O'Day 30, reflecting their respective approaches to stability.

Below deck, the Jeanneau Sun Odyssey 349 (2019) provides 6 berths in 2 cabins with 200L of water capacity and 140L of fuel. The 1984 O'Day 30 offers 6 berths in 2 cabins with 76L water and 57L fuel capacity.

Verdict

For cruising: The 1984 O'Day 30 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 Jeanneau Sun Odyssey 349 (2019) has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: Both boats provide similar accommodation, making either a viable choice for living aboard. Consider water and fuel capacity for extended stays away from marinas.

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