1979 O'Day 25 vs Catalina 323 — Comparison

1979 O'Day 251979 O'Day 25
VS
Catalina 323

Specifications Side by Side

Specification1979 O'Day 25Catalina 323
General
ManufacturerO'DayCatalina
Year1979–19842004–2009
TypeSloopSloop
CountryUSAUSA
DesignerC. Raymond HuntGerry Douglas
Dimensions
LOA7.62 m (25.0 ft)9.75 m (32.0 ft)
LWL6.25 m (20.5 ft)8.84 m (29.0 ft)
Beam2.74 m (9.0 ft)3.25 m (10.7 ft)
Draft1.07 m (3.5 ft)1.75 m (5.7 ft)
Weight
Displacement1,769 kg (3,900 lbs)4,763 kg (10,501 lbs)
Ballast726 kg (1,601 lbs)1,814 kg (3,999 lbs)
Sailing
Sail Area27.2 m² (293 ft²)46.0 m² (495 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine7 HP21 HP
Fuel Capacity30 L (7.9 gal)76 L (20.1 gal)
Water Capacity45 L (11.9 gal)151 L (39.9 gal)
Accommodation
Berths56
Cabins11

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1979 O'Day 25
18.90
Catalina 323
16.51
Ballast Ratio (Higher = more stability)
1979 O'Day 25
41.04
Catalina 323
38.09
Capsize Ratio (Lower = safer offshore)
1979 O'Day 25
0.91
Catalina 323
0.77
Comfort Ratio (Higher = gentler motion)
1979 O'Day 25
16.00
Catalina 323
18.34

Detailed Comparison

The 1979 O'Day 25 and Catalina 323 represent two takes on sloop-rigged sailing. The 1979 O'Day 25 is a 1970s design by O'Day from USA, while the Catalina 323 is a 2000s offering from Catalina from USA. The 1979 O'Day 25 was penned by C. Raymond Hunt. The Catalina 323 was designed by Gerry Douglas.

In terms of size, the 1979 O'Day 25 measures 7.62m (25.0ft) overall with a beam of 2.74m, compared to the Catalina 323 at 9.75m (32.0ft) with a 3.25m beam. The Catalina 323 is 2.13m longer than the 1979 O'Day 25. The Catalina 323 displaces approximately 169% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1979 O'Day 25 has good sail power for versatile performance with an SA/D ratio of 18.90 and 27.2 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 1979 O'Day 25 has the edge in terms of raw sailing performance.

For comfort and safety, the 1979 O'Day 25 offers a firm, racing-oriented motion (comfort ratio: 16.0) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.91). The Catalina 323 has a comfort ratio of 18.3 and a capsize screening value of 0.77. The ballast ratios are 41.0% for the 1979 O'Day 25 and 38.1% for the Catalina 323, reflecting their respective approaches to stability.

Below deck, the 1979 O'Day 25 provides 5 berths in 1 cabin with 45L of water capacity and 30L of fuel. The Catalina 323 offers 6 berths in 1 cabin with 151L water and 76L fuel capacity.

Verdict

For cruising: The Catalina 323 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 1979 O'Day 25 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 323 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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