1982 Island Packet 31 vs 2010 Island Packet 485 — Comparison
Specifications Side by Side
| Specification | 1982 Island Packet 31 | 2010 Island Packet 485 |
|---|---|---|
| General | ||
| Manufacturer | Island Packet | Island Packet |
| Year | 1982–1994 | 2010 |
| Type | Cutter | Cutter |
| Country | USA | USA |
| Designer | Bob Johnson | Bob Johnson |
| Dimensions | ||
| LOA | 9.45 m (31.0 ft) | 14.78 m (48.5 ft) |
| LWL | 8.08 m (26.5 ft) | 12.50 m (41.0 ft) |
| Beam | 3.35 m (11.0 ft) | 4.42 m (14.5 ft) |
| Draft | 1.22 m (4.0 ft) | 1.52 m (5.0 ft) |
| Weight | ||
| Displacement | 5,897 kg (13,001 lbs) | 15,422 kg (34,000 lbs) |
| Ballast | 2,449 kg (5,399 lbs) | 6,169 kg (13,600 lbs) |
| Sailing | ||
| Sail Area | 49.2 m² (530 ft²) | 92.0 m² (990 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Full | Full |
| Engine & Tanks | ||
| Engine | 25 HP | 100 HP |
| Fuel Capacity | 114 L (30.1 gal) | 340 L (89.8 gal) |
| Water Capacity | 189 L (49.9 gal) | 568 L (150.0 gal) |
| Accommodation | ||
| Berths | 5 | 8 |
| Cabins | 2 | 3 |
Performance Comparison
Detailed Comparison
The 1982 Island Packet 31 and 2010 Island Packet 485 represent two takes on cutter-rigged sailing. The 1982 Island Packet 31 is a 1980s design by Island Packet from USA, while the 2010 Island Packet 485 is a modern offering from Island Packet from USA. The 1982 Island Packet 31 was penned by Bob Johnson. The 2010 Island Packet 485 was designed by Bob Johnson.
In terms of size, the 1982 Island Packet 31 measures 9.45m (31.0ft) overall with a beam of 3.35m, compared to the 2010 Island Packet 485 at 14.78m (48.5ft) with a 4.42m beam. The 2010 Island Packet 485 is 5.33m longer than the 1982 Island Packet 31. The 2010 Island Packet 485 displaces approximately 162% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the 1982 Island Packet 31 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.32 and 49.2 m² of sail area. The 2010 Island Packet 485, with an SA/D of 15.08 and 92.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1982 Island Packet 31 has the edge in terms of raw sailing performance.
For comfort and safety, the 1982 Island Packet 31 offers a moderate motion comfort level (comfort ratio: 25.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.74). The 2010 Island Packet 485 has a comfort ratio of 18.8 and a capsize screening value of 0.71. The ballast ratios are 41.5% for the 1982 Island Packet 31 and 40.0% for the 2010 Island Packet 485, reflecting their respective approaches to stability.
Below deck, the 1982 Island Packet 31 provides 5 berths in 2 cabins with 189L of water capacity and 114L of fuel. The 2010 Island Packet 485 offers 8 berths in 3 cabins with 568L water and 340L fuel capacity.
Verdict
For cruising: The 1982 Island Packet 31 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 1982 Island Packet 31 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The 2010 Island Packet 485 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: 1982 Island Packet 31 · 2010 Island Packet 485