Catalina 315 vs 1983 Pearson 31 — Comparison

Catalina 315Catalina 315
VS
1983 Pearson 311983 Pearson 31

Specifications Side by Side

SpecificationCatalina 3151983 Pearson 31
General
ManufacturerCatalinaPearson
Year20141983–1990
TypeSloopSloop
CountryUSAUSA
DesignerGerry DouglasWilliam Shaw
Dimensions
LOA9.45 m (31.0 ft)9.45 m (31.0 ft)
LWL8.61 m (28.2 ft)7.77 m (25.5 ft)
Beam3.20 m (10.5 ft)3.10 m (10.2 ft)
Draft1.68 m (5.5 ft)1.52 m (5.0 ft)
Weight
Displacement4,536 kg (10,000 lbs)4,309 kg (9,500 lbs)
Ballast1,814 kg (3,999 lbs)1,814 kg (3,999 lbs)
Sailing
Sail Area44.0 m² (474 ft²)40.0 m² (431 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFinFin
Engine & Tanks
Engine21 HP18 HP
Fuel Capacity76 L (20.1 gal)68 L (18.0 gal)
Water Capacity132 L (34.9 gal)114 L (30.1 gal)
Accommodation
Berths56
Cabins12

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
Catalina 315
16.32
1983 Pearson 31
15.35
Ballast Ratio (Higher = more stability)
Catalina 315
39.99
1983 Pearson 31
42.10
Capsize Ratio (Lower = safer offshore)
Catalina 315
0.77
1983 Pearson 31
0.76
Comfort Ratio (Higher = gentler motion)
Catalina 315
18.85
1983 Pearson 31
21.43

Detailed Comparison

The Catalina 315 and 1983 Pearson 31 represent two takes on sloop-rigged sailing. The Catalina 315 is a modern design by Catalina from USA, while the 1983 Pearson 31 is a 1980s offering from Pearson from USA. The Catalina 315 was penned by Gerry Douglas. The 1983 Pearson 31 was designed by William Shaw.

In terms of size, the Catalina 315 measures 9.45m (31.0ft) overall with a beam of 3.20m, compared to the 1983 Pearson 31 at 9.45m (31.0ft) with a 3.10m beam. The Catalina 315 displaces approximately 5% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the Catalina 315 has moderate sail power suitable for relaxed cruising with an SA/D ratio of 16.32 and 44.0 m² of sail area. The 1983 Pearson 31, with an SA/D of 15.35 and 40.0 m² of canvas, offers moderate sail power suitable for relaxed cruising. The Catalina 315 has the edge in terms of raw sailing performance.

For comfort and safety, the Catalina 315 offers a firm, racing-oriented motion (comfort ratio: 18.9) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.77). The 1983 Pearson 31 has a comfort ratio of 21.4 and a capsize screening value of 0.76. The ballast ratios are 40.0% for the Catalina 315 and 42.1% for the 1983 Pearson 31, reflecting their respective approaches to stability.

Below deck, the Catalina 315 provides 5 berths in 1 cabin with 132L of water capacity and 76L of fuel. The 1983 Pearson 31 offers 6 berths in 2 cabins with 114L water and 68L 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 Catalina 315 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1983 Pearson 31 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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Or view individual specs: Catalina 315 · 1983 Pearson 31