1975 Columbia 34 Mk II vs Catalina 323 — Comparison

1975 Columbia 34 Mk II
VS
Catalina 323

Specifications Side by Side

Specification1975 Columbia 34 Mk IICatalina 323
General
ManufacturerColumbiaCatalina
Year1975–19802004–2009
TypeSloopSloop
CountryUSAUSA
DesignerWilliam CrealockGerry Douglas
Dimensions
LOA10.36 m (34.0 ft)9.75 m (32.0 ft)
LWL8.23 m (27.0 ft)8.84 m (29.0 ft)
Beam3.05 m (10.0 ft)3.25 m (10.7 ft)
Draft1.52 m (5.0 ft)1.75 m (5.7 ft)
Weight
Displacement5,216 kg (11,499 lbs)4,763 kg (10,501 lbs)
Ballast2,177 kg (4,799 lbs)1,814 kg (3,999 lbs)
Sailing
Sail Area46.5 m² (501 ft²)46.0 m² (495 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine18 HP21 HP
Fuel Capacity76 L (20.1 gal)76 L (20.1 gal)
Water Capacity114 L (30.1 gal)151 L (39.9 gal)
Accommodation
Berths66
Cabins21

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1975 Columbia 34 Mk II
15.71
Catalina 323
16.51
Ballast Ratio (Higher = more stability)
1975 Columbia 34 Mk II
41.74
Catalina 323
38.09
Capsize Ratio (Lower = safer offshore)
1975 Columbia 34 Mk II
0.70
Catalina 323
0.77
Comfort Ratio (Higher = gentler motion)
1975 Columbia 34 Mk II
23.07
Catalina 323
18.34

Detailed Comparison

The 1975 Columbia 34 Mk II and Catalina 323 represent two takes on sloop-rigged sailing. The 1975 Columbia 34 Mk II is a 1970s design by Columbia from USA, while the Catalina 323 is a 2000s offering from Catalina from USA. The 1975 Columbia 34 Mk II was penned by William Crealock. The Catalina 323 was designed by Gerry Douglas.

In terms of size, the 1975 Columbia 34 Mk II measures 10.36m (34.0ft) overall with a beam of 3.05m, compared to the Catalina 323 at 9.75m (32.0ft) with a 3.25m beam. The 1975 Columbia 34 Mk II is 0.61m longer than the Catalina 323. The 1975 Columbia 34 Mk II displaces approximately 10% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1975 Columbia 34 Mk II has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.71 and 46.5 m² of sail area. The Catalina 323, with an SA/D of 16.51 and 46.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Catalina 323 has the edge in terms of raw sailing performance.

For comfort and safety, the 1975 Columbia 34 Mk II offers a moderate motion comfort level (comfort ratio: 23.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.70). The Catalina 323 has a comfort ratio of 18.3 and a capsize screening value of 0.77. The ballast ratios are 41.7% for the 1975 Columbia 34 Mk II and 38.1% for the Catalina 323, reflecting their respective approaches to stability.

Below deck, the 1975 Columbia 34 Mk II provides 6 berths in 2 cabins with 114L of water capacity and 76L of fuel. The Catalina 323 offers 6 berths in 1 cabin with 151L water and 76L fuel capacity.

Verdict

For cruising: The 1975 Columbia 34 Mk II 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 323 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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Or view individual specs: 1975 Columbia 34 Mk II · Catalina 323