1979 Irwin 25 vs 1990 Island Packet 29 — Comparison
1979 Irwin 25
1990 Island Packet 29
Specifications Side by Side
| Specification | 1979 Irwin 25 | 1990 Island Packet 29 |
|---|---|---|
| General | ||
| Manufacturer | Irwin | Island Packet |
| Year | 1979–1984 | 1990–1998 |
| Type | Sloop | Sloop |
| Country | USA | USA |
| Designer | Ted Irwin | Bob Johnson |
| Dimensions | ||
| LOA | 7.62 m (25.0 ft) | 8.84 m (29.0 ft) |
| LWL | 6.10 m (20.0 ft) | 7.47 m (24.5 ft) |
| Beam | 2.59 m (8.5 ft) | 3.05 m (10.0 ft) |
| Draft | 1.14 m (3.7 ft) | 1.12 m (3.7 ft) |
| Weight | ||
| Displacement | 2,041 kg (4,500 lbs) | 3,856 kg (8,501 lbs) |
| Ballast | 816 kg (1,799 lbs) | 1,588 kg (3,501 lbs) |
| Sailing | ||
| Sail Area | 25.8 m² (278 ft²) | 33.5 m² (361 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Full |
| Engine & Tanks | ||
| Engine | 10 HP | 18 HP |
| Fuel Capacity | 30 L (7.9 gal) | 76 L (20.1 gal) |
| Water Capacity | 38 L (10.0 gal) | 132 L (34.9 gal) |
| Accommodation | ||
| Berths | 5 | 5 |
| Cabins | 1 | 1 |
Performance Comparison
Detailed Comparison
The 1979 Irwin 25 and 1990 Island Packet 29 represent two takes on sloop-rigged sailing. The 1979 Irwin 25 is a 1970s design by Irwin from USA, while the 1990 Island Packet 29 is a 1990s offering from Island Packet from USA. The 1979 Irwin 25 was penned by Ted Irwin. The 1990 Island Packet 29 was designed by Bob Johnson.
In terms of size, the 1979 Irwin 25 measures 7.62m (25.0ft) overall with a beam of 2.59m, compared to the 1990 Island Packet 29 at 8.84m (29.0ft) with a 3.05m beam. The 1990 Island Packet 29 is 1.22m longer than the 1979 Irwin 25. The 1990 Island Packet 29 displaces approximately 89% 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 1990 Island Packet 29, with an SA/D of 13.84 and 33.5 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 1990 Island Packet 29 has a comfort ratio of 21.6 and a capsize screening value of 0.78. The ballast ratios are 40.0% for the 1979 Irwin 25 and 41.2% for the 1990 Island Packet 29, 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 1990 Island Packet 29 offers 5 berths in 1 cabin with 132L water and 76L fuel capacity.
Verdict
For cruising: The 1990 Island Packet 29 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.