Catalina 34 MkII vs 1978 Cape Dory 270 — Comparison

Catalina 34 MkII
VS
1978 Cape Dory 270

Specifications Side by Side

SpecificationCatalina 34 MkII1978 Cape Dory 270
General
ManufacturerCatalinaCape Dory
Year1995–20041978–1985
TypeSloopSloop
CountryUSAUSA
DesignerGerry DouglasCarl Alberg
Dimensions
LOA10.36 m (34.0 ft)8.23 m (27.0 ft)
LWL9.14 m (30.0 ft)6.40 m (21.0 ft)
Beam3.40 m (11.2 ft)2.59 m (8.5 ft)
Draft1.75 m (5.7 ft)1.14 m (3.7 ft)
Weight
Displacement5,443 kg (12,000 lbs)2,722 kg (6,001 lbs)
Ballast2,041 kg (4,500 lbs)1,134 kg (2,500 lbs)
Sailing
Sail Area52.0 m² (560 ft²)28.0 m² (301 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFull
Engine & Tanks
Engine21 HP12 HP
Fuel Capacity76 L (20.1 gal)38 L (10.0 gal)
Water Capacity151 L (39.9 gal)68 L (18.0 gal)
Accommodation
Berths64
Cabins21

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Catalina 34 MkII
17.08
1978 Cape Dory 270
14.60
Ballast Ratio (Higher = more stability)
Catalina 34 MkII
37.50
1978 Cape Dory 270
41.66
Capsize Ratio (Lower = safer offshore)
Catalina 34 MkII
0.77
1978 Cape Dory 270
0.74
Comfort Ratio (Higher = gentler motion)
Catalina 34 MkII
18.13
1978 Cape Dory 270
24.39

Detailed Comparison

The Catalina 34 MkII and 1978 Cape Dory 270 represent two takes on sloop-rigged sailing. The Catalina 34 MkII is a 1990s design by Catalina from USA, while the 1978 Cape Dory 270 is a 1970s offering from Cape Dory from USA. The Catalina 34 MkII was penned by Gerry Douglas. The 1978 Cape Dory 270 was designed by Carl Alberg.

In terms of size, the Catalina 34 MkII measures 10.36m (34.0ft) overall with a beam of 3.40m, compared to the 1978 Cape Dory 270 at 8.23m (27.0ft) with a 2.59m beam. The Catalina 34 MkII is 2.13m longer than the 1978 Cape Dory 270. The Catalina 34 MkII displaces approximately 100% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the Catalina 34 MkII has good sail power for versatile performance with an SA/D ratio of 17.08 and 52.0 m² of sail area. The 1978 Cape Dory 270, with an SA/D of 14.60 and 28.0 m² of canvas, offers modest sail power for its displacement. The Catalina 34 MkII has the edge in terms of raw sailing performance.

For comfort and safety, the Catalina 34 MkII offers a firm, racing-oriented motion (comfort ratio: 18.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.77). The 1978 Cape Dory 270 has a comfort ratio of 24.4 and a capsize screening value of 0.74. The ballast ratios are 37.5% for the Catalina 34 MkII and 41.7% for the 1978 Cape Dory 270, reflecting their respective approaches to stability.

Below deck, the Catalina 34 MkII provides 6 berths in 2 cabins with 151L of water capacity and 76L of fuel. The 1978 Cape Dory 270 offers 4 berths in 1 cabin with 68L water and 38L fuel capacity.

Verdict

For cruising: The 1978 Cape Dory 270 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 34 MkII 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 34 MkII 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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