1990 Island Packet 29 vs 1983 Pearson 31 — Comparison

1990 Island Packet 291990 Island Packet 29
VS
1983 Pearson 311983 Pearson 31

Specifications Side by Side

Specification1990 Island Packet 291983 Pearson 31
General
ManufacturerIsland PacketPearson
Year1990–19981983–1990
TypeSloopSloop
CountryUSAUSA
DesignerBob JohnsonWilliam Shaw
Dimensions
LOA8.84 m (29.0 ft)9.45 m (31.0 ft)
LWL7.47 m (24.5 ft)7.77 m (25.5 ft)
Beam3.05 m (10.0 ft)3.10 m (10.2 ft)
Draft1.12 m (3.7 ft)1.52 m (5.0 ft)
Weight
Displacement3,856 kg (8,501 lbs)4,309 kg (9,500 lbs)
Ballast1,588 kg (3,501 lbs)1,814 kg (3,999 lbs)
Sailing
Sail Area33.5 m² (361 ft²)40.0 m² (431 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFullFin
Engine & Tanks
Engine18 HP18 HP
Fuel Capacity76 L (20.1 gal)68 L (18.0 gal)
Water Capacity132 L (34.9 gal)114 L (30.1 gal)
Accommodation
Berths56
Cabins12

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1990 Island Packet 29
13.84
1983 Pearson 31
15.35
Ballast Ratio (Higher = more stability)
1990 Island Packet 29
41.18
1983 Pearson 31
42.10
Capsize Ratio (Lower = safer offshore)
1990 Island Packet 29
0.78
1983 Pearson 31
0.76
Comfort Ratio (Higher = gentler motion)
1990 Island Packet 29
21.60
1983 Pearson 31
21.43

Detailed Comparison

The 1990 Island Packet 29 and 1983 Pearson 31 represent two takes on sloop-rigged sailing. The 1990 Island Packet 29 is a 1990s design by Island Packet from USA, while the 1983 Pearson 31 is a 1980s offering from Pearson from USA. The 1990 Island Packet 29 was penned by Bob Johnson. The 1983 Pearson 31 was designed by William Shaw.

In terms of size, the 1990 Island Packet 29 measures 8.84m (29.0ft) overall with a beam of 3.05m, compared to the 1983 Pearson 31 at 9.45m (31.0ft) with a 3.10m beam. The 1983 Pearson 31 is 0.61m longer than the 1990 Island Packet 29. The 1983 Pearson 31 displaces approximately 12% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1990 Island Packet 29 has modest sail power for its displacement with an SA/D ratio of 13.84 and 33.5 m² of sail area. The 1983 Pearson 31, with an SA/D of 15.35 and 40.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1983 Pearson 31 has the edge in terms of raw sailing performance.

For comfort and safety, the 1990 Island Packet 29 offers a moderate motion comfort level (comfort ratio: 21.6) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.78). The 1983 Pearson 31 has a comfort ratio of 21.4 and a capsize screening value of 0.76. The ballast ratios are 41.2% for the 1990 Island Packet 29 and 42.1% for the 1983 Pearson 31, reflecting their respective approaches to stability.

Below deck, the 1990 Island Packet 29 provides 5 berths in 1 cabin with 132L of water capacity and 76L of fuel. The 1983 Pearson 31 offers 6 berths in 2 cabins with 114L water and 68L 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 1983 Pearson 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 1983 Pearson 31 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: 1990 Island Packet 29 · 1983 Pearson 31