The Seafarer 31 is moderately powered for comfortable coastal cruising.
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
SA / Displacement
17.3
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
41.2%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Capsize Screening
1.93
Below the 2.0 offshore threshold — acceptable for ocean passages.
Motion & Offshore Suitability
Two ratios that matter most when you're planning passages — how the boat feels in a seaway, and whether the hull geometry is suitable for open ocean.
Capsize Screening Formula
1.93
Below the 2.0 offshore threshold — acceptable for ocean passages.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
PHRF Fleet Position
Where the Seafarer 31 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Pearson 30
Catalina 30
Oday 30
Hunter 30
Wind Range & Comfort Envelope
Estimated wind ranges for comfortable sailing on the Seafarer 31 — based on sail area, ballast, and displacement characteristics.
Ghosting
0–7 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
7–22 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
22–32 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
32+ kts
Storm conditions. Storm jib or bare poles. Seek shelter if coastal.
How It Compares
Side-by-side with the boats most often cross-shopped against the Seafarer 31.
| Seafarer 31 | Catalina 30 | Hunter 30 | Oday 30 | Pearson 30 | |
|---|---|---|---|---|---|
| Dimensions | |||||
| LOA | 31.0 | 29.9 | 29.9 | 30.0 | 29.8 |
| LWL | — | 25.0 | 25.6 | 25.4 | 25.0 |
| Beam | 9.8 | 10.8 | 10.8 | 10.8 | 9.5 |
| Displacement | 8,500 | 10 | 9 | 10,500 | 8 |
| Ballast | 3,500 | 4 | 3 | 4,000 | 3 |
| Sail Area | 450 | 446 | 417 | 441 | 445 |
| Performance | |||||
| PHRF | — | 180 | 189 | 180 | 174 |
| SA/Disp | 17.3 | 15.2 | 14.5 | 14.8 | 17.4 |
| Bal/Disp | 41.2 | 41.2 | 39.4 | 38.1 | 42.8 |
| Comfort | — | 24.9 | 25.1 | 25.3 | 24.3 |
| Capsize | 1.93 | 2.00 | 1.91 | 1.97 | 1.88 |
| Hull Speed | — | 6.7 | 6.8 | 6.8 | 6.7 |