2010 Beneteau Oceanis 31 vs 1979 O'Day 28 — Comparison
2010 Beneteau Oceanis 31
1979 O'Day 28
Specifications Side by Side
| Specification | 2010 Beneteau Oceanis 31 | 1979 O'Day 28 |
|---|---|---|
| General | ||
| Manufacturer | Beneteau | O'Day |
| Year | 2010–2016 | 1979–1985 |
| Type | Sloop | Sloop |
| Country | France | USA |
| Designer | Groupe Finot | C. Raymond Hunt |
| Dimensions | ||
| LOA | 9.68 m (31.8 ft) | 8.53 m (28.0 ft) |
| LWL | 8.60 m (28.2 ft) | 7.01 m (23.0 ft) |
| Beam | 3.28 m (10.8 ft) | 2.84 m (9.3 ft) |
| Draft | 1.60 m (5.2 ft) | 1.37 m (4.5 ft) |
| Weight | ||
| Displacement | 4,300 kg (9,480 lbs) | 2,722 kg (6,001 lbs) |
| Ballast | 1,400 kg (3,086 lbs) | 1,089 kg (2,401 lbs) |
| Sailing | ||
| Sail Area | 45.5 m² (490 ft²) | 31.0 m² (334 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 18 HP | 10 HP |
| Fuel Capacity | 60 L (15.9 gal) | 38 L (10.0 gal) |
| Water Capacity | 120 L (31.7 gal) | 57 L (15.1 gal) |
| Accommodation | ||
| Berths | 6 | 5 |
| Cabins | 2 | 1 |
Performance Comparison
Detailed Comparison
The 2010 Beneteau Oceanis 31 and 1979 O'Day 28 represent two takes on sloop-rigged sailing. The 2010 Beneteau Oceanis 31 is a modern design by Beneteau from France, while the 1979 O'Day 28 is a 1970s offering from O'Day from USA. The 2010 Beneteau Oceanis 31 was penned by Groupe Finot. The 1979 O'Day 28 was designed by C. Raymond Hunt.
In terms of size, the 2010 Beneteau Oceanis 31 measures 9.68m (31.8ft) overall with a beam of 3.28m, compared to the 1979 O'Day 28 at 8.53m (28.0ft) with a 2.84m beam. The 2010 Beneteau Oceanis 31 is 1.15m longer than the 1979 O'Day 28. The 2010 Beneteau Oceanis 31 displaces approximately 58% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the 2010 Beneteau Oceanis 31 has good sail power for versatile performance with an SA/D ratio of 17.48 and 45.5 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 2010 Beneteau Oceanis 31 has the edge in terms of raw sailing performance.
For comfort and safety, the 2010 Beneteau Oceanis 31 offers a firm, racing-oriented motion (comfort ratio: 17.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.81). The 1979 O'Day 28 has a comfort ratio of 18.7 and a capsize screening value of 0.81. The ballast ratios are 32.6% for the 2010 Beneteau Oceanis 31 and 40.0% for the 1979 O'Day 28, reflecting their respective approaches to stability.
Below deck, the 2010 Beneteau Oceanis 31 provides 6 berths in 2 cabins with 120L of water capacity and 60L 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 2010 Beneteau Oceanis 31 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The 2010 Beneteau Oceanis 31 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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Or view individual specs: 2010 Beneteau Oceanis 31 · 1979 O'Day 28