1972 Contest 31 vs 1975 Ericson 25+ — Comparison

1972 Contest 31 1972 Contest 31
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1975 Ericson 25+ 1975 Ericson 25+

Specifications Side by Side

Specification 1972 Contest 31 1975 Ericson 25+
General
Manufacturer Contest Ericson
Year 1972–1982 1975–1982
Type Sloop Sloop
Country Netherlands USA
Designer Dick Zaal Bruce King
Dimensions
LOA 9.45 m (31.0 ft) 7.62 m (25.0 ft)
LWL 7.62 m (25.0 ft) 6.25 m (20.5 ft)
Beam 3.05 m (10.0 ft) 2.44 m (8.0 ft)
Draft 1.52 m (5.0 ft) 1.22 m (4.0 ft)
Weight
Displacement 4,536 kg (10,000 lbs) 1,905 kg (4,200 lbs)
Ballast 1,814 kg (3,999 lbs) 726 kg (1,601 lbs)
Sailing
Sail Area 39.5 m² (425 ft²) 25.0 m² (269 ft²)
Hull Material Steel Fiberglass
Keel Type Fin Fin
Engine & Tanks
Engine 18 HP 7 HP
Fuel Capacity 80 L (21.1 gal) 23 L (6.1 gal)
Water Capacity 150 L (39.6 gal) 45 L (11.9 gal)
Accommodation
Berths 5 4
Cabins 2 1

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1972 Contest 31
14.65
1975 Ericson 25+
16.54
Ballast Ratio (Higher = more stability)
1972 Contest 31
39.99
1975 Ericson 25+
38.11
Capsize Ratio (Lower = safer offshore)
1972 Contest 31
0.74
1975 Ericson 25+
0.79
Comfort Ratio (Higher = gentler motion)
1972 Contest 31
23.65
1975 Ericson 25+
20.11

Detailed Comparison

The 1972 Contest 31 and 1975 Ericson 25+ represent two takes on sloop-rigged sailing. The 1972 Contest 31 is a 1970s design by Contest from Netherlands, while the 1975 Ericson 25+ is a 1970s offering from Ericson from USA. The 1972 Contest 31 was penned by Dick Zaal. The 1975 Ericson 25+ was designed by Bruce King.

In terms of size, the 1972 Contest 31 measures 9.45m (31.0ft) overall with a beam of 3.05m, compared to the 1975 Ericson 25+ at 7.62m (25.0ft) with a 2.44m beam. The 1972 Contest 31 is 1.83m longer than the 1975 Ericson 25+. The 1972 Contest 31 displaces approximately 138% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1972 Contest 31 has modest sail power for its displacement with an SA/D ratio of 14.65 and 39.5 m² of sail area. The 1975 Ericson 25+, with an SA/D of 16.54 and 25.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1975 Ericson 25+ has the edge in terms of raw sailing performance.

For comfort and safety, the 1972 Contest 31 offers a moderate motion comfort level (comfort ratio: 23.7) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.74). The 1975 Ericson 25+ has a comfort ratio of 20.1 and a capsize screening value of 0.79. The ballast ratios are 40.0% for the 1972 Contest 31 and 38.1% for the 1975 Ericson 25+, reflecting their respective approaches to stability.

Below deck, the 1972 Contest 31 provides 5 berths in 2 cabins with 150L of water capacity and 80L of fuel. The 1975 Ericson 25+ offers 4 berths in 1 cabin with 45L water and 23L fuel capacity.

Verdict

For cruising: The 1972 Contest 31 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 1975 Ericson 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 1972 Contest 31 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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