1973 Islander 37 vs 1990 Westerly Oceanquest — Comparison

1973 Islander 371973 Islander 37
VS
1990 Westerly Oceanquest

Specifications Side by Side

Specification1973 Islander 371990 Westerly Oceanquest
General
ManufacturerIslanderWesterly
Year1973–19781990–1996
TypeSloopSloop
CountryUSAUK
DesignerAlan GurneyEd Dubois
Dimensions
LOA11.28 m (37.0 ft)10.67 m (35.0 ft)
LWL8.69 m (28.5 ft)8.84 m (29.0 ft)
Beam3.28 m (10.8 ft)3.40 m (11.2 ft)
Draft1.68 m (5.5 ft)1.07 m (3.5 ft)
Weight
Displacement6,577 kg (14,500 lbs)5,897 kg (13,001 lbs)
Ballast2,722 kg (6,001 lbs)2,268 kg (5,000 lbs)
Sailing
Sail Area54.5 m² (587 ft²)46.0 m² (495 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinBilge
Engine & Tanks
Engine22 HP23 HP
Fuel Capacity76 L (20.1 gal)100 L (26.4 gal)
Water Capacity114 L (30.1 gal)200 L (52.8 gal)
Accommodation
Berths67
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1973 Islander 37
15.77
1990 Westerly Oceanquest
14.32
Ballast Ratio (Higher = more stability)
1973 Islander 37
41.39
1990 Westerly Oceanquest
38.46
Capsize Ratio (Lower = safer offshore)
1973 Islander 37
0.70
1990 Westerly Oceanquest
0.75
Comfort Ratio (Higher = gentler motion)
1973 Islander 37
23.18
1990 Westerly Oceanquest
20.14

Detailed Comparison

The 1973 Islander 37 and 1990 Westerly Oceanquest represent two takes on sloop-rigged sailing. The 1973 Islander 37 is a 1970s design by Islander from USA, while the 1990 Westerly Oceanquest is a 1990s offering from Westerly from UK. The 1973 Islander 37 was penned by Alan Gurney. The 1990 Westerly Oceanquest was designed by Ed Dubois.

In terms of size, the 1973 Islander 37 measures 11.28m (37.0ft) overall with a beam of 3.28m, compared to the 1990 Westerly Oceanquest at 10.67m (35.0ft) with a 3.40m beam. The 1973 Islander 37 is 0.61m longer than the 1990 Westerly Oceanquest. The 1973 Islander 37 displaces approximately 12% 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 1990 Westerly Oceanquest, with an SA/D of 14.32 and 46.0 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 1990 Westerly Oceanquest has a comfort ratio of 20.1 and a capsize screening value of 0.75. The ballast ratios are 41.4% for the 1973 Islander 37 and 38.5% for the 1990 Westerly Oceanquest, 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 1990 Westerly Oceanquest offers 7 berths in 2 cabins with 200L water and 100L 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: The 1990 Westerly Oceanquest 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: 1973 Islander 37 · 1990 Westerly Oceanquest