1970 Irwin 34 vs 2007 Jeanneau Sun Odyssey 39 DS — Comparison
Specifications Side by Side
| Specification | 1970 Irwin 34 | 2007 Jeanneau Sun Odyssey 39 DS |
|---|---|---|
| General | ||
| Manufacturer | Irwin | Jeanneau |
| Year | 1970–1978 | 2007–2012 |
| Type | Sloop | Sloop |
| Country | USA | France |
| Designer | Ted Irwin | Philippe Briand |
| Dimensions | ||
| LOA | 10.36 m (34.0 ft) | 11.86 m (38.9 ft) |
| LWL | 8.23 m (27.0 ft) | 10.30 m (33.8 ft) |
| Beam | 3.20 m (10.5 ft) | 3.76 m (12.3 ft) |
| Draft | 1.52 m (5.0 ft) | 1.85 m (6.1 ft) |
| Weight | ||
| Displacement | 5,443 kg (12,000 lbs) | 7,600 kg (16,755 lbs) |
| Ballast | 2,177 kg (4,799 lbs) | 2,400 kg (5,291 lbs) |
| Sailing | ||
| Sail Area | 47.9 m² (516 ft²) | 62.0 m² (667 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Full | Fin |
| Engine & Tanks | ||
| Engine | 18 HP | 29 HP |
| Fuel Capacity | 76 L (20.1 gal) | 120 L (31.7 gal) |
| Water Capacity | 114 L (30.1 gal) | 250 L (66.0 gal) |
| Accommodation | ||
| Berths | 6 | 7 |
| Cabins | 2 | 2 |
Performance Comparison
Detailed Comparison
The 1970 Irwin 34 and 2007 Jeanneau Sun Odyssey 39 DS represent two takes on sloop-rigged sailing. The 1970 Irwin 34 is a 1970s design by Irwin from USA, while the 2007 Jeanneau Sun Odyssey 39 DS is a 2000s offering from Jeanneau from France. The 1970 Irwin 34 was penned by Ted Irwin. The 2007 Jeanneau Sun Odyssey 39 DS was designed by Philippe Briand.
In terms of size, the 1970 Irwin 34 measures 10.36m (34.0ft) overall with a beam of 3.20m, compared to the 2007 Jeanneau Sun Odyssey 39 DS at 11.86m (38.9ft) with a 3.76m beam. The 2007 Jeanneau Sun Odyssey 39 DS is 1.50m longer than the 1970 Irwin 34. The 2007 Jeanneau Sun Odyssey 39 DS displaces approximately 40% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the 1970 Irwin 34 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.73 and 47.9 m² of sail area. The 2007 Jeanneau Sun Odyssey 39 DS, with an SA/D of 16.30 and 62.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 2007 Jeanneau Sun Odyssey 39 DS has the edge in terms of raw sailing performance.
For comfort and safety, the 1970 Irwin 34 offers a moderate motion comfort level (comfort ratio: 22.6) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.73). The 2007 Jeanneau Sun Odyssey 39 DS has a comfort ratio of 17.3 and a capsize screening value of 0.77. The ballast ratios are 40.0% for the 1970 Irwin 34 and 31.6% for the 2007 Jeanneau Sun Odyssey 39 DS, reflecting their respective approaches to stability.
Below deck, the 1970 Irwin 34 provides 6 berths in 2 cabins with 114L of water capacity and 76L of fuel. The 2007 Jeanneau Sun Odyssey 39 DS offers 7 berths in 2 cabins with 250L water and 120L fuel capacity.
Verdict
For cruising: The 1970 Irwin 34 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 2007 Jeanneau Sun Odyssey 39 DS has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The 2007 Jeanneau Sun Odyssey 39 DS 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: 1970 Irwin 34 · 2007 Jeanneau Sun Odyssey 39 DS