1974 O'Day 23 vs 1979 O'Day 28 — Comparison

1974 O'Day 231974 O'Day 23
VS
1979 O'Day 281979 O'Day 28

Specifications Side by Side

Specification1974 O'Day 231979 O'Day 28
General
ManufacturerO'DayO'Day
Year1974–19831979–1985
TypeSloopSloop
CountryUSAUSA
DesignerC. Raymond HuntC. Raymond Hunt
Dimensions
LOA6.93 m (22.7 ft)8.53 m (28.0 ft)
LWL5.79 m (19.0 ft)7.01 m (23.0 ft)
Beam2.24 m (7.3 ft)2.84 m (9.3 ft)
Draft1.02 m (3.3 ft)1.37 m (4.5 ft)
Weight
Displacement816 kg (1,799 lbs)2,722 kg (6,001 lbs)
Ballast295 kg (650 lbs)1,089 kg (2,401 lbs)
Sailing
Sail Area17.5 m² (188 ft²)31.0 m² (334 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine5 HP10 HP
Fuel Capacity11 L (2.9 gal)38 L (10.0 gal)
Water Capacity15 L (4.0 gal)57 L (15.1 gal)
Accommodation
Berths45
Cabins11

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1974 O'Day 23
20.38
1979 O'Day 28
16.16
Ballast Ratio (Higher = more stability)
1974 O'Day 23
36.15
1979 O'Day 28
40.01
Capsize Ratio (Lower = safer offshore)
1974 O'Day 23
0.96
1979 O'Day 28
0.81
Comfort Ratio (Higher = gentler motion)
1974 O'Day 23
11.39
1979 O'Day 28
18.69

Detailed Comparison

The 1974 O'Day 23 and 1979 O'Day 28 represent two takes on sloop-rigged sailing. The 1974 O'Day 23 is a 1970s design by O'Day from USA, while the 1979 O'Day 28 is a 1970s offering from O'Day from USA. The 1974 O'Day 23 was penned by C. Raymond Hunt. The 1979 O'Day 28 was designed by C. Raymond Hunt.

In terms of size, the 1974 O'Day 23 measures 6.93m (22.7ft) overall with a beam of 2.24m, compared to the 1979 O'Day 28 at 8.53m (28.0ft) with a 2.84m beam. The 1979 O'Day 28 is 1.60m longer than the 1974 O'Day 23. The 1979 O'Day 28 displaces approximately 234% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1974 O'Day 23 has generous sail power for spirited sailing with an SA/D ratio of 20.38 and 17.5 m² of sail area. The 1979 O'Day 28, with an SA/D of 16.16 and 31.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1974 O'Day 23 has the edge in terms of raw sailing performance.

For comfort and safety, the 1974 O'Day 23 offers a firm, racing-oriented motion (comfort ratio: 11.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.96). The 1979 O'Day 28 has a comfort ratio of 18.7 and a capsize screening value of 0.81. The ballast ratios are 36.2% for the 1974 O'Day 23 and 40.0% for the 1979 O'Day 28, reflecting their respective approaches to stability.

Below deck, the 1974 O'Day 23 provides 4 berths in 1 cabin with 15L of water capacity and 11L of fuel. The 1979 O'Day 28 offers 5 berths in 1 cabin with 57L water and 38L fuel capacity.

Verdict

For cruising: The 1979 O'Day 28 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 1974 O'Day 23 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1979 O'Day 28 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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