1979 Irwin 25 vs 2008 Jeanneau Sun Odyssey 30i — Comparison
1979 Irwin 25
Specifications Side by Side
| Specification | 1979 Irwin 25 | 2008 Jeanneau Sun Odyssey 30i |
|---|---|---|
| General | ||
| Manufacturer | Irwin | Jeanneau |
| Year | 1979–1984 | 2008–2012 |
| Type | Sloop | Sloop |
| Country | USA | France |
| Designer | Ted Irwin | Marc Lombard |
| Dimensions | ||
| LOA | 7.62 m (25.0 ft) | 9.30 m (30.5 ft) |
| LWL | 6.10 m (20.0 ft) | 8.20 m (26.9 ft) |
| Beam | 2.59 m (8.5 ft) | 2.98 m (9.8 ft) |
| Draft | 1.14 m (3.7 ft) | 1.70 m (5.6 ft) |
| Weight | ||
| Displacement | 2,041 kg (4,500 lbs) | 4,000 kg (8,818 lbs) |
| Ballast | 816 kg (1,799 lbs) | 1,100 kg (2,425 lbs) |
| Sailing | ||
| Sail Area | 25.8 m² (278 ft²) | 37.0 m² (398 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 10 HP | 14 HP |
| Fuel Capacity | 30 L (7.9 gal) | 50 L (13.2 gal) |
| Water Capacity | 38 L (10.0 gal) | 100 L (26.4 gal) |
| Accommodation | ||
| Berths | 5 | 5 |
| Cabins | 1 | 2 |
Performance Comparison
Detailed Comparison
The 1979 Irwin 25 and 2008 Jeanneau Sun Odyssey 30i represent two takes on sloop-rigged sailing. The 1979 Irwin 25 is a 1970s design by Irwin from USA, while the 2008 Jeanneau Sun Odyssey 30i is a 2000s offering from Jeanneau from France. The 1979 Irwin 25 was penned by Ted Irwin. The 2008 Jeanneau Sun Odyssey 30i was designed by Marc Lombard.
In terms of size, the 1979 Irwin 25 measures 7.62m (25.0ft) overall with a beam of 2.59m, compared to the 2008 Jeanneau Sun Odyssey 30i at 9.30m (30.5ft) with a 2.98m beam. The 2008 Jeanneau Sun Odyssey 30i is 1.68m longer than the 1979 Irwin 25. The 2008 Jeanneau Sun Odyssey 30i displaces approximately 96% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the 1979 Irwin 25 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.30 and 25.8 m² of sail area. The 2008 Jeanneau Sun Odyssey 30i, with an SA/D of 14.92 and 37.0 m² of canvas, offers modest sail power for its displacement. The 1979 Irwin 25 has the edge in terms of raw sailing performance.
For comfort and safety, the 1979 Irwin 25 offers a moderate motion comfort level (comfort ratio: 20.6) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.82). The 2008 Jeanneau Sun Odyssey 30i has a comfort ratio of 19.7 and a capsize screening value of 0.75. The ballast ratios are 40.0% for the 1979 Irwin 25 and 27.5% for the 2008 Jeanneau Sun Odyssey 30i, reflecting their respective approaches to stability.
Below deck, the 1979 Irwin 25 provides 5 berths in 1 cabin with 38L of water capacity and 30L of fuel. The 2008 Jeanneau Sun Odyssey 30i offers 5 berths in 2 cabins with 100L water and 50L fuel capacity.
Verdict
For cruising: The 1979 Irwin 25 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 1979 Irwin 25 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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Or view individual specs: 1979 Irwin 25 · 2008 Jeanneau Sun Odyssey 30i