Dufour 375 Grand Large vs 1984 O'Day 30 — Comparison
Specifications Side by Side
| Specification | Dufour 375 Grand Large | 1984 O'Day 30 |
|---|---|---|
| General | ||
| Manufacturer | Dufour | O'Day |
| Year | 2009–2013 | 1984–1989 |
| Type | Sloop | Sloop |
| Country | France | USA |
| Designer | Felci Yacht Design | C. Raymond Hunt |
| Dimensions | ||
| LOA | 11.38 m (37.3 ft) | 9.14 m (30.0 ft) |
| LWL | 10.05 m (33.0 ft) | 7.62 m (25.0 ft) |
| Beam | 3.65 m (12.0 ft) | 3.05 m (10.0 ft) |
| Draft | 1.90 m (6.2 ft) | 1.52 m (5.0 ft) |
| Weight | ||
| Displacement | 6,800 kg (14,991 lbs) | 3,629 kg (8,001 lbs) |
| Ballast | 2,100 kg (4,630 lbs) | 1,452 kg (3,201 lbs) |
| Sailing | ||
| Sail Area | 61.0 m² (657 ft²) | 36.0 m² (388 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 29 HP | 13 HP |
| Fuel Capacity | 130 L (34.3 gal) | 57 L (15.1 gal) |
| Water Capacity | 240 L (63.4 gal) | 76 L (20.1 gal) |
| Accommodation | ||
| Berths | 6 | 6 |
| Cabins | 2 | 2 |
Performance Comparison
Detailed Comparison
The Dufour 375 Grand Large and 1984 O'Day 30 represent two takes on sloop-rigged sailing. The Dufour 375 Grand Large is a 2000s design by Dufour from France, while the 1984 O'Day 30 is a 1980s offering from O'Day from USA. The Dufour 375 Grand Large was penned by Felci Yacht Design. The 1984 O'Day 30 was designed by C. Raymond Hunt.
In terms of size, the Dufour 375 Grand Large measures 11.38m (37.3ft) overall with a beam of 3.65m, compared to the 1984 O'Day 30 at 9.14m (30.0ft) with a 3.05m beam. The Dufour 375 Grand Large is 2.24m longer than the 1984 O'Day 30. The Dufour 375 Grand Large displaces approximately 87% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the Dufour 375 Grand Large has good sail power for versatile performance with an SA/D ratio of 17.27 and 61.0 m² of sail area. The 1984 O'Day 30, with an SA/D of 15.49 and 36.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Dufour 375 Grand Large has the edge in terms of raw sailing performance.
For comfort and safety, the Dufour 375 Grand Large offers a firm, racing-oriented motion (comfort ratio: 17.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.77). The 1984 O'Day 30 has a comfort ratio of 19.4 and a capsize screening value of 0.79. The ballast ratios are 30.9% for the Dufour 375 Grand Large and 40.0% for the 1984 O'Day 30, reflecting their respective approaches to stability.
Below deck, the Dufour 375 Grand Large provides 6 berths in 2 cabins with 240L of water capacity and 130L of fuel. The 1984 O'Day 30 offers 6 berths in 2 cabins with 76L water and 57L fuel capacity.
Verdict
For cruising: The 1984 O'Day 30 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 Dufour 375 Grand Large 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: Dufour 375 Grand Large · 1984 O'Day 30