1979 Islander 36 vs Dufour 40 — Comparison
1979 Islander 36
Dufour 40
Specifications Side by Side
| Specification | 1979 Islander 36 | Dufour 40 |
|---|---|---|
| General | ||
| Manufacturer | Islander | Dufour |
| Year | 1979–1985 | 2007–2012 |
| Type | Sloop | Sloop |
| Country | USA | France |
| Designer | Alan Gurney | Umberto Felci |
| Dimensions | ||
| LOA | 10.97 m (36.0 ft) | 12.05 m (39.5 ft) |
| LWL | 8.84 m (29.0 ft) | 10.55 m (34.6 ft) |
| Beam | 3.28 m (10.8 ft) | 3.85 m (12.6 ft) |
| Draft | 1.68 m (5.5 ft) | 1.95 m (6.4 ft) |
| Weight | ||
| Displacement | 6,350 kg (13,999 lbs) | 7,800 kg (17,196 lbs) |
| Ballast | 2,722 kg (6,001 lbs) | 2,400 kg (5,291 lbs) |
| Sailing | ||
| Sail Area | 54.2 m² (583 ft²) | 68.0 m² (732 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 22 HP | 40 HP |
| Fuel Capacity | 76 L (20.1 gal) | 160 L (42.3 gal) |
| Water Capacity | 151 L (39.9 gal) | 300 L (79.3 gal) |
| Accommodation | ||
| Berths | 7 | 8 |
| Cabins | 2 | 3 |
Performance Comparison
Detailed Comparison
The 1979 Islander 36 and Dufour 40 represent two takes on sloop-rigged sailing. The 1979 Islander 36 is a 1970s design by Islander from USA, while the Dufour 40 is a 2000s offering from Dufour from France. The 1979 Islander 36 was penned by Alan Gurney. The Dufour 40 was designed by Umberto Felci.
In terms of size, the 1979 Islander 36 measures 10.97m (36.0ft) overall with a beam of 3.28m, compared to the Dufour 40 at 12.05m (39.5ft) with a 3.85m beam. The Dufour 40 is 1.08m longer than the 1979 Islander 36. The Dufour 40 displaces approximately 23% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the 1979 Islander 36 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.06 and 54.2 m² of sail area. The Dufour 40, with an SA/D of 17.56 and 68.0 m² of canvas, offers good sail power for versatile performance. The Dufour 40 has the edge in terms of raw sailing performance.
For comfort and safety, the 1979 Islander 36 offers a moderate motion comfort level (comfort ratio: 22.3) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.71). The Dufour 40 has a comfort ratio of 16.4 and a capsize screening value of 0.78. The ballast ratios are 42.9% for the 1979 Islander 36 and 30.8% for the Dufour 40, reflecting their respective approaches to stability.
Below deck, the 1979 Islander 36 provides 7 berths in 2 cabins with 151L of water capacity and 76L of fuel. The Dufour 40 offers 8 berths in 3 cabins with 300L water and 160L fuel capacity.
Verdict
For cruising: The 1979 Islander 36 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 40 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The Dufour 40 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: 1979 Islander 36 · Dufour 40