1981 Nautor Swan 36 vs 1979 O'Day 28 — Comparison

1981 Nautor Swan 36
VS
1979 O'Day 281979 O'Day 28

Specifications Side by Side

Specification1981 Nautor Swan 361979 O'Day 28
General
ManufacturerNautor SwanO'Day
Year1981–19891979–1985
TypeSloopSloop
CountryFinlandUSA
DesignerSparkman & StephensC. Raymond Hunt
Dimensions
LOA10.97 m (36.0 ft)8.53 m (28.0 ft)
LWL8.53 m (28.0 ft)7.01 m (23.0 ft)
Beam3.35 m (11.0 ft)2.84 m (9.3 ft)
Draft1.98 m (6.5 ft)1.37 m (4.5 ft)
Weight
Displacement6,350 kg (13,999 lbs)2,722 kg (6,001 lbs)
Ballast2,722 kg (6,001 lbs)1,089 kg (2,401 lbs)
Sailing
Sail Area54.5 m² (587 ft²)31.0 m² (334 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine28 HP10 HP
Fuel Capacity100 L (26.4 gal)38 L (10.0 gal)
Water Capacity180 L (47.6 gal)57 L (15.1 gal)
Accommodation
Berths65
Cabins21

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1981 Nautor Swan 36
16.15
1979 O'Day 28
16.16
Ballast Ratio (Higher = more stability)
1981 Nautor Swan 36
42.87
1979 O'Day 28
40.01
Capsize Ratio (Lower = safer offshore)
1981 Nautor Swan 36
0.72
1979 O'Day 28
0.81
Comfort Ratio (Higher = gentler motion)
1981 Nautor Swan 36
22.73
1979 O'Day 28
18.69

Detailed Comparison

The 1981 Nautor Swan 36 and 1979 O'Day 28 represent two takes on sloop-rigged sailing. The 1981 Nautor Swan 36 is a 1980s design by Nautor Swan from Finland, while the 1979 O'Day 28 is a 1970s offering from O'Day from USA. The 1981 Nautor Swan 36 was penned by Sparkman & Stephens. The 1979 O'Day 28 was designed by C. Raymond Hunt.

In terms of size, the 1981 Nautor Swan 36 measures 10.97m (36.0ft) overall with a beam of 3.35m, compared to the 1979 O'Day 28 at 8.53m (28.0ft) with a 2.84m beam. The 1981 Nautor Swan 36 is 2.44m longer than the 1979 O'Day 28. The 1981 Nautor Swan 36 displaces approximately 133% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1981 Nautor Swan 36 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.15 and 54.5 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 1979 O'Day 28 has the edge in terms of raw sailing performance.

For comfort and safety, the 1981 Nautor Swan 36 offers a moderate motion comfort level (comfort ratio: 22.7) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.72). The 1979 O'Day 28 has a comfort ratio of 18.7 and a capsize screening value of 0.81. The ballast ratios are 42.9% for the 1981 Nautor Swan 36 and 40.0% for the 1979 O'Day 28, reflecting their respective approaches to stability.

Below deck, the 1981 Nautor Swan 36 provides 6 berths in 2 cabins with 180L of water capacity and 100L of fuel. The 1979 O'Day 28 offers 5 berths in 1 cabin with 57L water and 38L fuel capacity.

Verdict

For cruising: The 1981 Nautor Swan 36 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 28 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1981 Nautor Swan 36 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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