1979 O'Day 25 vs 1975 Pearson 28 — Comparison

1979 O'Day 251979 O'Day 25
VS
1975 Pearson 281975 Pearson 28

Specifications Side by Side

Specification1979 O'Day 251975 Pearson 28
General
ManufacturerO'DayPearson
Year1979–19841975–1982
TypeSloopSloop
CountryUSAUSA
DesignerC. Raymond HuntWilliam Shaw
Dimensions
LOA7.62 m (25.0 ft)8.53 m (28.0 ft)
LWL6.25 m (20.5 ft)7.01 m (23.0 ft)
Beam2.74 m (9.0 ft)2.74 m (9.0 ft)
Draft1.07 m (3.5 ft)1.37 m (4.5 ft)
Weight
Displacement1,769 kg (3,900 lbs)2,948 kg (6,499 lbs)
Ballast726 kg (1,601 lbs)1,270 kg (2,800 lbs)
Sailing
Sail Area27.2 m² (293 ft²)30.0 m² (323 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine7 HP10 HP
Fuel Capacity30 L (7.9 gal)38 L (10.0 gal)
Water Capacity45 L (11.9 gal)57 L (15.1 gal)
Accommodation
Berths55
Cabins11

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1979 O'Day 25
18.90
1975 Pearson 28
14.83
Ballast Ratio (Higher = more stability)
1979 O'Day 25
41.04
1975 Pearson 28
43.08
Capsize Ratio (Lower = safer offshore)
1979 O'Day 25
0.91
1975 Pearson 28
0.77
Comfort Ratio (Higher = gentler motion)
1979 O'Day 25
16.00
1975 Pearson 28
21.23

Detailed Comparison

The 1979 O'Day 25 and 1975 Pearson 28 represent two takes on sloop-rigged sailing. The 1979 O'Day 25 is a 1970s design by O'Day from USA, while the 1975 Pearson 28 is a 1970s offering from Pearson from USA. The 1979 O'Day 25 was penned by C. Raymond Hunt. The 1975 Pearson 28 was designed by William Shaw.

In terms of size, the 1979 O'Day 25 measures 7.62m (25.0ft) overall with a beam of 2.74m, compared to the 1975 Pearson 28 at 8.53m (28.0ft) with a 2.74m beam. The 1975 Pearson 28 is 0.91m longer than the 1979 O'Day 25. The 1975 Pearson 28 displaces approximately 67% 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 1975 Pearson 28, with an SA/D of 14.83 and 30.0 m² of canvas, offers modest sail power for its displacement. 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 1975 Pearson 28 has a comfort ratio of 21.2 and a capsize screening value of 0.77. The ballast ratios are 41.0% for the 1979 O'Day 25 and 43.1% for the 1975 Pearson 28, 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 1975 Pearson 28 offers 5 berths in 1 cabin with 57L water and 38L fuel capacity.

Verdict

For cruising: The 1975 Pearson 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 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: 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: 1979 O'Day 25 · 1975 Pearson 28