2011 J/111 vs 1979 O'Day 28 — Comparison

2011 J/111
VS
1979 O'Day 281979 O'Day 28

Specifications Side by Side

Specification2011 J/1111979 O'Day 28
General
ManufacturerJ/BoatsO'Day
Year20111979–1985
TypeSloopSloop
CountryUSAUSA
DesignerAlan JohnstoneC. Raymond Hunt
Dimensions
LOA11.13 m (36.5 ft)8.53 m (28.0 ft)
LWL9.75 m (32.0 ft)7.01 m (23.0 ft)
Beam3.40 m (11.2 ft)2.84 m (9.3 ft)
Draft2.20 m (7.2 ft)1.37 m (4.5 ft)
Weight
Displacement4,990 kg (11,001 lbs)2,722 kg (6,001 lbs)
Ballast2,041 kg (4,500 lbs)1,089 kg (2,401 lbs)
Sailing
Sail Area71.0 m² (764 ft²)31.0 m² (334 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine22 HP10 HP
Fuel Capacity57 L (15.1 gal)38 L (10.0 gal)
Water Capacity76 L (20.1 gal)57 L (15.1 gal)
Accommodation
Berths65
Cabins21

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
2011 J/111
24.71
1979 O'Day 28
16.16
Ballast Ratio (Higher = more stability)
2011 J/111
40.90
1979 O'Day 28
40.01
Capsize Ratio (Lower = safer offshore)
2011 J/111
0.80
1979 O'Day 28
0.81
Comfort Ratio (Higher = gentler motion)
2011 J/111
14.54
1979 O'Day 28
18.69

Detailed Comparison

The 2011 J/111 and 1979 O'Day 28 represent two takes on sloop-rigged sailing. The 2011 J/111 is a modern design by J/Boats from USA, while the 1979 O'Day 28 is a 1970s offering from O'Day from USA. The 2011 J/111 was penned by Alan Johnstone. The 1979 O'Day 28 was designed by C. Raymond Hunt.

In terms of size, the 2011 J/111 measures 11.13m (36.5ft) overall with a beam of 3.40m, compared to the 1979 O'Day 28 at 8.53m (28.0ft) with a 2.84m beam. The 2011 J/111 is 2.60m longer than the 1979 O'Day 28. The 2011 J/111 displaces approximately 83% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 2011 J/111 has generous sail power for spirited sailing with an SA/D ratio of 24.71 and 71.0 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 2011 J/111 has the edge in terms of raw sailing performance.

For comfort and safety, the 2011 J/111 offers a firm, racing-oriented motion (comfort ratio: 14.5) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.80). The 1979 O'Day 28 has a comfort ratio of 18.7 and a capsize screening value of 0.81. The ballast ratios are 40.9% for the 2011 J/111 and 40.0% for the 1979 O'Day 28, reflecting their respective approaches to stability.

Below deck, the 2011 J/111 provides 6 berths in 2 cabins with 76L of water capacity and 57L 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 2011 J/111 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 2011 J/111 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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