1979 Islander 36 vs 1975 Cal 29 — Comparison
1979 Islander 36
Specifications Side by Side
| Specification | 1979 Islander 36 | 1975 Cal 29 |
|---|---|---|
| General | ||
| Manufacturer | Islander | Cal |
| Year | 1979–1985 | 1975–1981 |
| Type | Sloop | Sloop |
| Country | USA | USA |
| Designer | Alan Gurney | Bill Lapworth |
| Dimensions | ||
| LOA | 10.97 m (36.0 ft) | 8.84 m (29.0 ft) |
| LWL | 8.84 m (29.0 ft) | 7.32 m (24.0 ft) |
| Beam | 3.28 m (10.8 ft) | 2.84 m (9.3 ft) |
| Draft | 1.68 m (5.5 ft) | 1.37 m (4.5 ft) |
| Weight | ||
| Displacement | 6,350 kg (13,999 lbs) | 3,175 kg (7,000 lbs) |
| Ballast | 2,722 kg (6,001 lbs) | 1,361 kg (3,000 lbs) |
| Sailing | ||
| Sail Area | 54.2 m² (583 ft²) | 34.0 m² (366 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 22 HP | 13 HP |
| Fuel Capacity | 76 L (20.1 gal) | 45 L (11.9 gal) |
| Water Capacity | 151 L (39.9 gal) | 76 L (20.1 gal) |
| Accommodation | ||
| Berths | 7 | 5 |
| Cabins | 2 | 1 |
Performance Comparison
Detailed Comparison
The 1979 Islander 36 and 1975 Cal 29 represent two takes on sloop-rigged sailing. The 1979 Islander 36 is a 1970s design by Islander from USA, while the 1975 Cal 29 is a 1970s offering from Cal from USA. The 1979 Islander 36 was penned by Alan Gurney. The 1975 Cal 29 was designed by Bill Lapworth.
In terms of size, the 1979 Islander 36 measures 10.97m (36.0ft) overall with a beam of 3.28m, compared to the 1975 Cal 29 at 8.84m (29.0ft) with a 2.84m beam. The 1979 Islander 36 is 2.13m longer than the 1975 Cal 29. The 1979 Islander 36 displaces approximately 100% 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 1975 Cal 29, with an SA/D of 15.99 and 34.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1979 Islander 36 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 1975 Cal 29 has a comfort ratio of 20.1 and a capsize screening value of 0.77. The ballast ratios are 42.9% for the 1979 Islander 36 and 42.9% for the 1975 Cal 29, 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 1975 Cal 29 offers 5 berths in 1 cabin with 76L water and 45L 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 1979 Islander 36 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The 1979 Islander 36 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 · 1975 Cal 29