1983 Pearson 31 vs 1984 Pearson 34 — Comparison

1983 Pearson 311983 Pearson 31
VS
1984 Pearson 341984 Pearson 34

Specifications Side by Side

Specification1983 Pearson 311984 Pearson 34
General
ManufacturerPearsonPearson
Year1983–19901984–1990
TypeSloopSloop
CountryUSAUSA
DesignerWilliam ShawWilliam Shaw
Dimensions
LOA9.45 m (31.0 ft)10.36 m (34.0 ft)
LWL7.77 m (25.5 ft)8.53 m (28.0 ft)
Beam3.10 m (10.2 ft)3.35 m (11.0 ft)
Draft1.52 m (5.0 ft)1.60 m (5.2 ft)
Weight
Displacement4,309 kg (9,500 lbs)5,443 kg (12,000 lbs)
Ballast1,814 kg (3,999 lbs)2,268 kg (5,000 lbs)
Sailing
Sail Area40.0 m² (431 ft²)46.0 m² (495 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine18 HP20 HP
Fuel Capacity68 L (18.0 gal)76 L (20.1 gal)
Water Capacity114 L (30.1 gal)152 L (40.2 gal)
Accommodation
Berths66
Cabins22

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1983 Pearson 31
15.35
1984 Pearson 34
15.11
Ballast Ratio (Higher = more stability)
1983 Pearson 31
42.10
1984 Pearson 34
41.67
Capsize Ratio (Lower = safer offshore)
1983 Pearson 31
0.76
1984 Pearson 34
0.76
Comfort Ratio (Higher = gentler motion)
1983 Pearson 31
21.43
1984 Pearson 34
20.28

Detailed Comparison

The 1983 Pearson 31 and 1984 Pearson 34 represent two takes on sloop-rigged sailing. The 1983 Pearson 31 is a 1980s design by Pearson from USA, while the 1984 Pearson 34 is a 1980s offering from Pearson from USA. The 1983 Pearson 31 was penned by William Shaw. The 1984 Pearson 34 was designed by William Shaw.

In terms of size, the 1983 Pearson 31 measures 9.45m (31.0ft) overall with a beam of 3.10m, compared to the 1984 Pearson 34 at 10.36m (34.0ft) with a 3.35m beam. The 1984 Pearson 34 is 0.91m longer than the 1983 Pearson 31. The 1984 Pearson 34 displaces approximately 26% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1983 Pearson 31 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 15.35 and 40.0 m² of sail area. The 1984 Pearson 34, with an SA/D of 15.11 and 46.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The 1983 Pearson 31 has the edge in terms of raw sailing performance.

For comfort and safety, the 1983 Pearson 31 offers a moderate motion comfort level (comfort ratio: 21.4) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.76). The 1984 Pearson 34 has a comfort ratio of 20.3 and a capsize screening value of 0.76. The ballast ratios are 42.1% for the 1983 Pearson 31 and 41.7% for the 1984 Pearson 34, reflecting their respective approaches to stability.

Below deck, the 1983 Pearson 31 provides 6 berths in 2 cabins with 114L of water capacity and 68L of fuel. The 1984 Pearson 34 offers 6 berths in 2 cabins with 152L water and 76L fuel capacity.

Verdict

For cruising: The 1983 Pearson 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 1983 Pearson 31 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: 1983 Pearson 31 · 1984 Pearson 34