1975 Pearson 39 vs 1988 Pacific Seacraft 31 — Comparison

1975 Pearson 391975 Pearson 39
VS
1988 Pacific Seacraft 31

Specifications Side by Side

Specification1975 Pearson 391988 Pacific Seacraft 31
General
ManufacturerPearsonPacific Seacraft
Year1975–19801988–2007
TypeSloopSloop
CountryUSAUSA
DesignerWilliam ShawWilliam Crealock
Dimensions
LOA11.89 m (39.0 ft)9.45 m (31.0 ft)
LWL9.45 m (31.0 ft)7.62 m (25.0 ft)
Beam3.51 m (11.5 ft)3.05 m (10.0 ft)
Draft1.68 m (5.5 ft)1.37 m (4.5 ft)
Weight
Displacement7,711 kg (17,000 lbs)4,990 kg (11,001 lbs)
Ballast3,175 kg (7,000 lbs)2,177 kg (4,799 lbs)
Sailing
Sail Area60.8 m² (654 ft²)40.5 m² (436 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFull
Engine & Tanks
Engine28 HP25 HP
Fuel Capacity114 L (30.1 gal)76 L (20.1 gal)
Water Capacity189 L (49.9 gal)151 L (39.9 gal)
Accommodation
Berths75
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1975 Pearson 39
15.83
1988 Pacific Seacraft 31
14.09
Ballast Ratio (Higher = more stability)
1975 Pearson 39
41.17
1988 Pacific Seacraft 31
43.63
Capsize Ratio (Lower = safer offshore)
1975 Pearson 39
0.71
1988 Pacific Seacraft 31
0.71
Comfort Ratio (Higher = gentler motion)
1975 Pearson 39
21.46
1988 Pacific Seacraft 31
26.02

Detailed Comparison

The 1975 Pearson 39 and 1988 Pacific Seacraft 31 represent two takes on sloop-rigged sailing. The 1975 Pearson 39 is a 1970s design by Pearson from USA, while the 1988 Pacific Seacraft 31 is a 1980s offering from Pacific Seacraft from USA. The 1975 Pearson 39 was penned by William Shaw. The 1988 Pacific Seacraft 31 was designed by William Crealock.

In terms of size, the 1975 Pearson 39 measures 11.89m (39.0ft) overall with a beam of 3.51m, compared to the 1988 Pacific Seacraft 31 at 9.45m (31.0ft) with a 3.05m beam. The 1975 Pearson 39 is 2.44m longer than the 1988 Pacific Seacraft 31. The 1975 Pearson 39 displaces approximately 55% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1975 Pearson 39 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.83 and 60.8 m² of sail area. The 1988 Pacific Seacraft 31, with an SA/D of 14.09 and 40.5 m² of canvas, offers modest sail power for its displacement. The 1975 Pearson 39 has the edge in terms of raw sailing performance.

For comfort and safety, the 1975 Pearson 39 offers a moderate motion comfort level (comfort ratio: 21.5) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.71). The 1988 Pacific Seacraft 31 has a comfort ratio of 26.0 and a capsize screening value of 0.71. The ballast ratios are 41.2% for the 1975 Pearson 39 and 43.6% for the 1988 Pacific Seacraft 31, reflecting their respective approaches to stability.

Below deck, the 1975 Pearson 39 provides 7 berths in 2 cabins with 189L of water capacity and 114L of fuel. The 1988 Pacific Seacraft 31 offers 5 berths in 2 cabins with 151L water and 76L fuel capacity.

Verdict

For cruising: The 1988 Pacific Seacraft 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 Pearson 39 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1975 Pearson 39 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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