1973 Ericson 27 vs 1979 O'Day 28 — Comparison

1973 Ericson 271973 Ericson 27
VS
1979 O'Day 281979 O'Day 28

Specifications Side by Side

Specification1973 Ericson 271979 O'Day 28
General
ManufacturerEricsonO'Day
Year1973–19801979–1985
TypeSloopSloop
CountryUSAUSA
DesignerBruce KingC. Raymond Hunt
Dimensions
LOA8.23 m (27.0 ft)8.53 m (28.0 ft)
LWL6.55 m (21.5 ft)7.01 m (23.0 ft)
Beam2.74 m (9.0 ft)2.84 m (9.3 ft)
Draft1.37 m (4.5 ft)1.37 m (4.5 ft)
Weight
Displacement2,495 kg (5,501 lbs)2,722 kg (6,001 lbs)
Ballast1,043 kg (2,299 lbs)1,089 kg (2,401 lbs)
Sailing
Sail Area30.8 m² (332 ft²)31.0 m² (334 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine10 HP10 HP
Fuel Capacity38 L (10.0 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)
1973 Ericson 27
17.02
1979 O'Day 28
16.16
Ballast Ratio (Higher = more stability)
1973 Ericson 27
41.80
1979 O'Day 28
40.01
Capsize Ratio (Lower = safer offshore)
1973 Ericson 27
0.81
1979 O'Day 28
0.81
Comfort Ratio (Higher = gentler motion)
1973 Ericson 27
20.13
1979 O'Day 28
18.69

Detailed Comparison

The 1973 Ericson 27 and 1979 O'Day 28 represent two takes on sloop-rigged sailing. The 1973 Ericson 27 is a 1970s design by Ericson from USA, while the 1979 O'Day 28 is a 1970s offering from O'Day from USA. The 1973 Ericson 27 was penned by Bruce King. The 1979 O'Day 28 was designed by C. Raymond Hunt.

In terms of size, the 1973 Ericson 27 measures 8.23m (27.0ft) overall with a beam of 2.74m, compared to the 1979 O'Day 28 at 8.53m (28.0ft) with a 2.84m beam. The 1979 O'Day 28 is 0.30m longer than the 1973 Ericson 27. The 1979 O'Day 28 displaces approximately 9% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1973 Ericson 27 has good sail power for versatile performance with an SA/D ratio of 17.02 and 30.8 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 1973 Ericson 27 has the edge in terms of raw sailing performance.

For comfort and safety, the 1973 Ericson 27 offers a moderate motion comfort level (comfort ratio: 20.1) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.81). The 1979 O'Day 28 has a comfort ratio of 18.7 and a capsize screening value of 0.81. The ballast ratios are 41.8% for the 1973 Ericson 27 and 40.0% for the 1979 O'Day 28, reflecting their respective approaches to stability.

Below deck, the 1973 Ericson 27 provides 5 berths in 1 cabin with 57L of water capacity and 38L of fuel. The 1979 O'Day 28 offers 5 berths in 1 cabin with 57L water and 38L fuel capacity.

Verdict

For cruising: The 1973 Ericson 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 1973 Ericson 27 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.

Compare Different Boats

Looking for a different matchup? Browse All Boats

Or view individual specs: 1973 Ericson 27 · 1979 O'Day 28