1979 O'Day 25 vs 1978 Cape Dory 270 — Comparison

1979 O'Day 25 1979 O'Day 25
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1978 Cape Dory 270 1978 Cape Dory 270

Specifications Side by Side

Specification 1979 O'Day 25 1978 Cape Dory 270
General
Manufacturer O'Day Cape Dory
Year 1979–1984 1978–1985
Type Sloop Sloop
Country USA USA
Designer C. Raymond Hunt Carl Alberg
Dimensions
LOA 7.62 m (25.0 ft) 8.23 m (27.0 ft)
LWL 6.25 m (20.5 ft) 6.40 m (21.0 ft)
Beam 2.74 m (9.0 ft) 2.59 m (8.5 ft)
Draft 1.07 m (3.5 ft) 1.14 m (3.7 ft)
Weight
Displacement 1,769 kg (3,900 lbs) 2,722 kg (6,001 lbs)
Ballast 726 kg (1,601 lbs) 1,134 kg (2,500 lbs)
Sailing
Sail Area 27.2 m² (293 ft²) 28.0 m² (301 ft²)
Hull Material Fiberglass Fiberglass
Keel Type Fin Full
Engine & Tanks
Engine 7 HP 12 HP
Fuel Capacity 30 L (7.9 gal) 38 L (10.0 gal)
Water Capacity 45 L (11.9 gal) 68 L (18.0 gal)
Accommodation
Berths 5 4
Cabins 1 1

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1979 O'Day 25
18.90
1978 Cape Dory 270
14.60
Ballast Ratio (Higher = more stability)
1979 O'Day 25
41.04
1978 Cape Dory 270
41.66
Capsize Ratio (Lower = safer offshore)
1979 O'Day 25
0.91
1978 Cape Dory 270
0.74
Comfort Ratio (Higher = gentler motion)
1979 O'Day 25
16.00
1978 Cape Dory 270
24.39

Detailed Comparison

The 1979 O'Day 25 and 1978 Cape Dory 270 represent two takes on sloop-rigged sailing. The 1979 O'Day 25 is a 1970s design by O'Day from USA, while the 1978 Cape Dory 270 is a 1970s offering from Cape Dory from USA. The 1979 O'Day 25 was penned by C. Raymond Hunt. The 1978 Cape Dory 270 was designed by Carl Alberg.

In terms of size, the 1979 O'Day 25 measures 7.62m (25.0ft) overall with a beam of 2.74m, compared to the 1978 Cape Dory 270 at 8.23m (27.0ft) with a 2.59m beam. The 1978 Cape Dory 270 is 0.61m longer than the 1979 O'Day 25. The 1978 Cape Dory 270 displaces approximately 54% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1979 O'Day 25 has good sail power for versatile performance with an SA/D ratio of 18.90 and 27.2 m² of sail area. The 1978 Cape Dory 270, with an SA/D of 14.60 and 28.0 m² of canvas, offers modest sail power for its displacement. The 1979 O'Day 25 has the edge in terms of raw sailing performance.

For comfort and safety, the 1979 O'Day 25 offers a firm, racing-oriented motion (comfort ratio: 16.0) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.91). The 1978 Cape Dory 270 has a comfort ratio of 24.4 and a capsize screening value of 0.74. The ballast ratios are 41.0% for the 1979 O'Day 25 and 41.7% for the 1978 Cape Dory 270, reflecting their respective approaches to stability.

Below deck, the 1979 O'Day 25 provides 5 berths in 1 cabin with 45L of water capacity and 30L of fuel. The 1978 Cape Dory 270 offers 4 berths in 1 cabin with 68L water and 38L fuel capacity.

Verdict

For cruising: The 1978 Cape Dory 270 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 1979 O'Day 25 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1979 O'Day 25 offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.

Compare Different Boats

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