1982 S2 7.9 vs 1984 O'Day 30 — Comparison
Specifications Side by Side
| Specification | 1982 S2 7.9 | 1984 O'Day 30 |
|---|---|---|
| General | ||
| Manufacturer | S2 | O'Day |
| Year | 1982–1988 | 1984–1989 |
| Type | Sloop | Sloop |
| Country | USA | USA |
| Designer | Arthur Edmunds | C. Raymond Hunt |
| Dimensions | ||
| LOA | 7.90 m (25.9 ft) | 9.14 m (30.0 ft) |
| LWL | 6.71 m (22.0 ft) | 7.62 m (25.0 ft) |
| Beam | 2.84 m (9.3 ft) | 3.05 m (10.0 ft) |
| Draft | 1.37 m (4.5 ft) | 1.52 m (5.0 ft) |
| Weight | ||
| Displacement | 2,268 kg (5,000 lbs) | 3,629 kg (8,001 lbs) |
| Ballast | 907 kg (2,000 lbs) | 1,452 kg (3,201 lbs) |
| Sailing | ||
| Sail Area | 31.6 m² (340 ft²) | 36.0 m² (388 ft²) |
| Hull Material | Fiberglass | Fiberglass |
| Keel Type | Fin | Fin |
| Engine & Tanks | ||
| Engine | 10 HP | 13 HP |
| Fuel Capacity | 38 L (10.0 gal) | 57 L (15.1 gal) |
| Water Capacity | 57 L (15.1 gal) | 76 L (20.1 gal) |
| Accommodation | ||
| Berths | 5 | 6 |
| Cabins | 1 | 2 |
Performance Comparison
Detailed Comparison
The 1982 S2 7.9 and 1984 O'Day 30 represent two takes on sloop-rigged sailing. The 1982 S2 7.9 is a 1980s design by S2 from USA, while the 1984 O'Day 30 is a 1980s offering from O'Day from USA. The 1982 S2 7.9 was penned by Arthur Edmunds. The 1984 O'Day 30 was designed by C. Raymond Hunt.
In terms of size, the 1982 S2 7.9 measures 7.90m (25.9ft) overall with a beam of 2.84m, compared to the 1984 O'Day 30 at 9.14m (30.0ft) with a 3.05m beam. The 1984 O'Day 30 is 1.24m longer than the 1982 S2 7.9. The 1984 O'Day 30 displaces approximately 60% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the 1982 S2 7.9 has good sail power for versatile performance with an SA/D ratio of 18.61 and 31.6 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 1982 S2 7.9 has the edge in terms of raw sailing performance.
For comfort and safety, the 1982 S2 7.9 offers a firm, racing-oriented motion (comfort ratio: 17.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.87). The 1984 O'Day 30 has a comfort ratio of 19.4 and a capsize screening value of 0.79. The ballast ratios are 40.0% for the 1982 S2 7.9 and 40.0% for the 1984 O'Day 30, reflecting their respective approaches to stability.
Below deck, the 1982 S2 7.9 provides 5 berths in 1 cabin with 57L of water capacity and 38L 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 1982 S2 7.9 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.
For liveaboard: The 1984 O'Day 30 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: 1982 S2 7.9 · 1984 O'Day 30