1975 Cape Dory 28 vs 1979 O'Day 28 — Comparison

1975 Cape Dory 28
VS
1979 O'Day 281979 O'Day 28

Specifications Side by Side

Specification1975 Cape Dory 281979 O'Day 28
General
ManufacturerCape DoryO'Day
Year1975–19831979–1985
TypeSloopSloop
CountryUSAUSA
DesignerCarl AlbergC. Raymond Hunt
Dimensions
LOA8.53 m (28.0 ft)8.53 m (28.0 ft)
LWL6.55 m (21.5 ft)7.01 m (23.0 ft)
Beam2.69 m (8.8 ft)2.84 m (9.3 ft)
Draft1.22 m (4.0 ft)1.37 m (4.5 ft)
Weight
Displacement3,175 kg (7,000 lbs)2,722 kg (6,001 lbs)
Ballast1,361 kg (3,000 lbs)1,089 kg (2,401 lbs)
Sailing
Sail Area33.5 m² (361 ft²)31.0 m² (334 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFullFin
Engine & Tanks
Engine15 HP10 HP
Fuel Capacity45 L (11.9 gal)38 L (10.0 gal)
Water Capacity57 L (15.1 gal)57 L (15.1 gal)
Accommodation
Berths55
Cabins11

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1975 Cape Dory 28
15.76
1979 O'Day 28
16.16
Ballast Ratio (Higher = more stability)
1975 Cape Dory 28
42.87
1979 O'Day 28
40.01
Capsize Ratio (Lower = safer offshore)
1975 Cape Dory 28
0.73
1979 O'Day 28
0.81
Comfort Ratio (Higher = gentler motion)
1975 Cape Dory 28
25.59
1979 O'Day 28
18.69

Detailed Comparison

The 1975 Cape Dory 28 and 1979 O'Day 28 represent two takes on sloop-rigged sailing. The 1975 Cape Dory 28 is a 1970s design by Cape Dory from USA, while the 1979 O'Day 28 is a 1970s offering from O'Day from USA. The 1975 Cape Dory 28 was penned by Carl Alberg. The 1979 O'Day 28 was designed by C. Raymond Hunt.

In terms of size, the 1975 Cape Dory 28 measures 8.53m (28.0ft) overall with a beam of 2.69m, compared to the 1979 O'Day 28 at 8.53m (28.0ft) with a 2.84m beam. The 1975 Cape Dory 28 displaces approximately 17% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1975 Cape Dory 28 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.76 and 33.5 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 1979 O'Day 28 has the edge in terms of raw sailing performance.

For comfort and safety, the 1975 Cape Dory 28 offers a moderate motion comfort level (comfort ratio: 25.6) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.73). The 1979 O'Day 28 has a comfort ratio of 18.7 and a capsize screening value of 0.81. The ballast ratios are 42.9% for the 1975 Cape Dory 28 and 40.0% for the 1979 O'Day 28, reflecting their respective approaches to stability.

Below deck, the 1975 Cape Dory 28 provides 5 berths in 1 cabin with 57L of water capacity and 45L of fuel. The 1979 O'Day 28 offers 5 berths in 1 cabin with 57L water and 38L fuel capacity.

Verdict

For cruising: The 1975 Cape Dory 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 1979 O'Day 28 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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