Catalina 36 MkII vs 1991 Westerly Seahawk — Comparison

Catalina 36 MkII
VS
1991 Westerly Seahawk1991 Westerly Seahawk

Specifications Side by Side

SpecificationCatalina 36 MkII1991 Westerly Seahawk
General
ManufacturerCatalinaWesterly
Year1999–20061991–1997
TypeSloopSloop
CountryUSAUK
DesignerGerry DouglasEd Dubois
Dimensions
LOA10.97 m (36.0 ft)10.36 m (34.0 ft)
LWL9.60 m (31.5 ft)8.53 m (28.0 ft)
Beam3.55 m (11.6 ft)3.35 m (11.0 ft)
Draft1.83 m (6.0 ft)1.80 m (5.9 ft)
Weight
Displacement6,577 kg (14,500 lbs)6,123 kg (13,499 lbs)
Ballast2,495 kg (5,501 lbs)2,495 kg (5,501 lbs)
Sailing
Sail Area56.5 m² (608 ft²)48.0 m² (517 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine27 HP28 HP
Fuel Capacity95 L (25.1 gal)114 L (30.1 gal)
Water Capacity189 L (49.9 gal)220 L (58.1 gal)
Accommodation
Berths77
Cabins23

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Catalina 36 MkII
16.35
1991 Westerly Seahawk
14.57
Ballast Ratio (Higher = more stability)
Catalina 36 MkII
37.94
1991 Westerly Seahawk
40.75
Capsize Ratio (Lower = safer offshore)
Catalina 36 MkII
0.76
1991 Westerly Seahawk
0.73
Comfort Ratio (Higher = gentler motion)
Catalina 36 MkII
18.65
1991 Westerly Seahawk
22.81

Detailed Comparison

The Catalina 36 MkII and 1991 Westerly Seahawk represent two takes on sloop-rigged sailing. The Catalina 36 MkII is a 1990s design by Catalina from USA, while the 1991 Westerly Seahawk is a 1990s offering from Westerly from UK. The Catalina 36 MkII was penned by Gerry Douglas. The 1991 Westerly Seahawk was designed by Ed Dubois.

In terms of size, the Catalina 36 MkII measures 10.97m (36.0ft) overall with a beam of 3.55m, compared to the 1991 Westerly Seahawk at 10.36m (34.0ft) with a 3.35m beam. The Catalina 36 MkII is 0.61m longer than the 1991 Westerly Seahawk. The Catalina 36 MkII displaces approximately 7% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the Catalina 36 MkII has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.35 and 56.5 m² of sail area. The 1991 Westerly Seahawk, with an SA/D of 14.57 and 48.0 m² of canvas, offers modest sail power for its displacement. The Catalina 36 MkII has the edge in terms of raw sailing performance.

For comfort and safety, the Catalina 36 MkII offers a firm, racing-oriented motion (comfort ratio: 18.7) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.76). The 1991 Westerly Seahawk has a comfort ratio of 22.8 and a capsize screening value of 0.73. The ballast ratios are 37.9% for the Catalina 36 MkII and 40.8% for the 1991 Westerly Seahawk, reflecting their respective approaches to stability.

Below deck, the Catalina 36 MkII provides 7 berths in 2 cabins with 189L of water capacity and 95L of fuel. The 1991 Westerly Seahawk offers 7 berths in 3 cabins with 220L water and 114L fuel capacity.

Verdict

For cruising: The 1991 Westerly Seahawk 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 36 MkII 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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