1973 Islander 37 vs Catalina 445 — Comparison

1973 Islander 371973 Islander 37
VS
Catalina 445

Specifications Side by Side

Specification1973 Islander 37Catalina 445
General
ManufacturerIslanderCatalina
Year1973–19782016
TypeSloopSloop
CountryUSAUSA
DesignerAlan GurneyGerry Douglas
Dimensions
LOA11.28 m (37.0 ft)13.56 m (44.5 ft)
LWL8.69 m (28.5 ft)11.89 m (39.0 ft)
Beam3.28 m (10.8 ft)4.17 m (13.7 ft)
Draft1.68 m (5.5 ft)2.06 m (6.8 ft)
Weight
Displacement6,577 kg (14,500 lbs)11,340 kg (25,000 lbs)
Ballast2,722 kg (6,001 lbs)4,309 kg (9,500 lbs)
Sailing
Sail Area54.5 m² (587 ft²)84.0 m² (904 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP55 HP
Fuel Capacity76 L (20.1 gal)189 L (49.9 gal)
Water Capacity114 L (30.1 gal)379 L (100.1 gal)
Accommodation
Berths67
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1973 Islander 37
15.77
Catalina 445
16.91
Ballast Ratio (Higher = more stability)
1973 Islander 37
41.39
Catalina 445
38.00
Capsize Ratio (Lower = safer offshore)
1973 Islander 37
0.70
Catalina 445
0.74
Comfort Ratio (Higher = gentler motion)
1973 Islander 37
23.18
Catalina 445
16.94

Detailed Comparison

The 1973 Islander 37 and Catalina 445 represent two takes on sloop-rigged sailing. The 1973 Islander 37 is a 1970s design by Islander from USA, while the Catalina 445 is a modern offering from Catalina from USA. The 1973 Islander 37 was penned by Alan Gurney. The Catalina 445 was designed by Gerry Douglas.

In terms of size, the 1973 Islander 37 measures 11.28m (37.0ft) overall with a beam of 3.28m, compared to the Catalina 445 at 13.56m (44.5ft) with a 4.17m beam. The Catalina 445 is 2.28m longer than the 1973 Islander 37. The Catalina 445 displaces approximately 72% 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 Catalina 445, with an SA/D of 16.91 and 84.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Catalina 445 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 Catalina 445 has a comfort ratio of 16.9 and a capsize screening value of 0.74. The ballast ratios are 41.4% for the 1973 Islander 37 and 38.0% for the Catalina 445, 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 Catalina 445 offers 7 berths in 2 cabins with 379L water and 189L 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 Catalina 445 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The Catalina 445 offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.

Compare Different Boats

Looking for a different matchup? Browse All Boats

Or view individual specs: 1973 Islander 37 · Catalina 445