1973 Islander 37 vs 1983 Irwin 32 — Comparison

1973 Islander 371973 Islander 37
VS
1983 Irwin 32

Specifications Side by Side

Specification1973 Islander 371983 Irwin 32
General
ManufacturerIslanderIrwin
Year1973–19781983–1988
TypeSloopSloop
CountryUSAUSA
DesignerAlan GurneyTed Irwin
Dimensions
LOA11.28 m (37.0 ft)9.75 m (32.0 ft)
LWL8.69 m (28.5 ft)8.08 m (26.5 ft)
Beam3.28 m (10.8 ft)3.20 m (10.5 ft)
Draft1.68 m (5.5 ft)1.52 m (5.0 ft)
Weight
Displacement6,577 kg (14,500 lbs)4,990 kg (11,001 lbs)
Ballast2,722 kg (6,001 lbs)2,041 kg (4,500 lbs)
Sailing
Sail Area54.5 m² (587 ft²)41.0 m² (441 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP18 HP
Fuel Capacity76 L (20.1 gal)68 L (18.0 gal)
Water Capacity114 L (30.1 gal)114 L (30.1 gal)
Accommodation
Berths66
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1973 Islander 37
15.77
1983 Irwin 32
14.27
Ballast Ratio (Higher = more stability)
1973 Islander 37
41.39
1983 Irwin 32
40.90
Capsize Ratio (Lower = safer offshore)
1973 Islander 37
0.70
1983 Irwin 32
0.75
Comfort Ratio (Higher = gentler motion)
1973 Islander 37
23.18
1983 Irwin 32
22.12

Detailed Comparison

The 1973 Islander 37 and 1983 Irwin 32 represent two takes on sloop-rigged sailing. The 1973 Islander 37 is a 1970s design by Islander from USA, while the 1983 Irwin 32 is a 1980s offering from Irwin from USA. The 1973 Islander 37 was penned by Alan Gurney. The 1983 Irwin 32 was designed by Ted Irwin.

In terms of size, the 1973 Islander 37 measures 11.28m (37.0ft) overall with a beam of 3.28m, compared to the 1983 Irwin 32 at 9.75m (32.0ft) with a 3.20m beam. The 1973 Islander 37 is 1.53m longer than the 1983 Irwin 32. The 1973 Islander 37 displaces approximately 32% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1973 Islander 37 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.77 and 54.5 m² of sail area. The 1983 Irwin 32, with an SA/D of 14.27 and 41.0 m² of canvas, offers modest sail power for its displacement. The 1973 Islander 37 has the edge in terms of raw sailing performance.

For comfort and safety, the 1973 Islander 37 offers a moderate motion comfort level (comfort ratio: 23.2) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.70). The 1983 Irwin 32 has a comfort ratio of 22.1 and a capsize screening value of 0.75. The ballast ratios are 41.4% for the 1973 Islander 37 and 40.9% for the 1983 Irwin 32, reflecting their respective approaches to stability.

Below deck, the 1973 Islander 37 provides 6 berths in 2 cabins with 114L of water capacity and 76L of fuel. The 1983 Irwin 32 offers 6 berths in 2 cabins with 114L water and 68L fuel capacity.

Verdict

For cruising: The 1973 Islander 37 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 1973 Islander 37 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.

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Or view individual specs: 1973 Islander 37 · 1983 Irwin 32