1975 Westsail 32 vs 1973 Islander 37 — Comparison

1975 Westsail 32 1975 Westsail 32
VS
1973 Islander 37 1973 Islander 37

Specifications Side by Side

Specification 1975 Westsail 32 1973 Islander 37
General
Manufacturer Westsail Islander
Year 1975–1985 1973–1978
Type Cutter Sloop
Country USA USA
Designer William Crealock Alan Gurney
Dimensions
LOA 9.75 m (32.0 ft) 11.28 m (37.0 ft)
LWL 8.38 m (27.5 ft) 8.69 m (28.5 ft)
Beam 3.28 m (10.8 ft) 3.28 m (10.8 ft)
Draft 1.52 m (5.0 ft) 1.68 m (5.5 ft)
Weight
Displacement 8,165 kg (18,001 lbs) 6,577 kg (14,500 lbs)
Ballast 3,402 kg (7,500 lbs) 2,722 kg (6,001 lbs)
Sailing
Sail Area 49.2 m² (530 ft²) 54.5 m² (587 ft²)
Hull Material Fiberglass Fiberglass
Keel Type Full Fin
Engine & Tanks
Engine 25 HP 22 HP
Fuel Capacity 114 L (30.1 gal) 76 L (20.1 gal)
Water Capacity 227 L (60.0 gal) 114 L (30.1 gal)
Accommodation
Berths 6 6
Cabins 2 2

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1975 Westsail 32
12.33
1973 Islander 37
15.77
Ballast Ratio (Higher = more stability)
1975 Westsail 32
41.67
1973 Islander 37
41.39
Capsize Ratio (Lower = safer offshore)
1975 Westsail 32
0.65
1973 Islander 37
0.70
Comfort Ratio (Higher = gentler motion)
1975 Westsail 32
33.37
1973 Islander 37
23.18

Detailed Comparison

The 1975 Westsail 32 and 1973 Islander 37 represent different approaches to sailboat design. The 1975 Westsail 32 is a 1970s design by Westsail from USA, while the 1973 Islander 37 is a 1970s offering from Islander from USA. The 1975 Westsail 32 was penned by William Crealock. The 1973 Islander 37 was designed by Alan Gurney.

In terms of size, the 1975 Westsail 32 measures 9.75m (32.0ft) overall with a beam of 3.28m, compared to the 1973 Islander 37 at 11.28m (37.0ft) with a 3.28m beam. The 1973 Islander 37 is 1.53m longer than the 1975 Westsail 32. The 1975 Westsail 32 displaces approximately 24% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1975 Westsail 32 has modest sail power for its displacement with an SA/D ratio of 12.33 and 49.2 m² of sail area. The 1973 Islander 37, with an SA/D of 15.77 and 54.5 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1973 Islander 37 has the edge in terms of raw sailing performance.

For comfort and safety, the 1975 Westsail 32 offers a comfortable motion suitable for extended cruising (comfort ratio: 33.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.65). The 1973 Islander 37 has a comfort ratio of 23.2 and a capsize screening value of 0.70. The ballast ratios are 41.7% for the 1975 Westsail 32 and 41.4% for the 1973 Islander 37, reflecting their respective approaches to stability.

Below deck, the 1975 Westsail 32 provides 6 berths in 2 cabins with 227L of water capacity and 114L of fuel. The 1973 Islander 37 offers 6 berths in 2 cabins with 114L water and 76L fuel capacity.

Verdict

For cruising: The 1975 Westsail 32 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.

Compare Different Boats

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