1971 C&C 27 vs 1984 O'Day 30 — Comparison
1971 C&C 27
Specifications Side by Side
| Specification | 1971 C&C 27 | 1984 O'Day 30 |
|---|---|---|
| General | ||
| Manufacturer | C&C Yachts | O'Day |
| Year | 1971–1975 | 1984–1989 |
| Type | Sloop | Sloop |
| Country | Canada | USA |
| Designer | Cuthbertson & Cassian | C. Raymond Hunt |
| Dimensions | ||
| LOA | 8.23 m (27.0 ft) | 9.14 m (30.0 ft) |
| LWL | 6.55 m (21.5 ft) | 7.62 m (25.0 ft) |
| Beam | 2.74 m (9.0 ft) | 3.05 m (10.0 ft) |
| Draft | 1.37 m (4.5 ft) | 1.52 m (5.0 ft) |
| Weight | ||
| Displacement | 2,495 kg (5,501 lbs) | 3,629 kg (8,001 lbs) |
| Ballast | 1,043 kg (2,299 lbs) | 1,452 kg (3,201 lbs) |
| Sailing | ||
| Sail Area | 31.0 m² (334 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 1971 C&C 27 and 1984 O'Day 30 represent two takes on sloop-rigged sailing. The 1971 C&C 27 is a 1970s design by C&C Yachts from Canada, while the 1984 O'Day 30 is a 1980s offering from O'Day from USA. The 1971 C&C 27 was penned by Cuthbertson & Cassian. The 1984 O'Day 30 was designed by C. Raymond Hunt.
In terms of size, the 1971 C&C 27 measures 8.23m (27.0ft) overall with a beam of 2.74m, compared to the 1984 O'Day 30 at 9.14m (30.0ft) with a 3.05m beam. The 1984 O'Day 30 is 0.91m longer than the 1971 C&C 27. The 1984 O'Day 30 displaces approximately 45% more than its counterpart, which significantly affects how each boat handles in different sea states.
Looking at performance, the 1971 C&C 27 has good sail power for versatile performance with an SA/D ratio of 17.13 and 31.0 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 1971 C&C 27 has the edge in terms of raw sailing performance.
For comfort and safety, the 1971 C&C 27 offers a moderate motion comfort level (comfort ratio: 20.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.81). The 1984 O'Day 30 has a comfort ratio of 19.4 and a capsize screening value of 0.79. The ballast ratios are 41.8% for the 1971 C&C 27 and 40.0% for the 1984 O'Day 30, reflecting their respective approaches to stability.
Below deck, the 1971 C&C 27 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 1971 C&C 27 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 1971 C&C 27 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: 1971 C&C 27 · 1984 O'Day 30