The Pearson 31 2 is moderately powered for comfortable coastal cruising, with acceptable motion comfort for coastal passages, designed for cruising comfort rather than racing.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 25.4′, the Pearson 31 2 tops out around 6.8 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √25.4′ LWL = 6.8 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
PHRF Rating
180s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
SA / Displacement
17.1
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
38.0%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
272
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
24.5
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.98
Below the 2.0 offshore threshold — acceptable for ocean passages.
Pounds/Inch Immersion
969lbs
Weight needed to sink the hull one inch — loading sensitivity.
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.
Comfort Ratio
24.5
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.98
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 Pearson 31 2 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
Tanzer 31
165s/nm
Catalina 309
167s/nm
Newport 31
177s/nm
Pearson 31 2
180s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
Estimated Speed by Wind
Rough boat speed estimates at different true wind speeds and points of sail — derived from hull speed, SA/D, and displacement, not measured polars.
| Point of Sail |
6 kts TWS |
10 kts TWS |
15 kts TWS |
20 kts TWS |
| Close-hauled40–50° |
2.7 |
3.4 |
3.8 |
4.0 |
| Close Reach60° |
3.3 |
4.1 |
4.6 |
4.8 |
| Beam Reach90° |
4.0 |
5.1 |
5.6 |
5.9 |
| Broad Reach120–135° |
3.7 |
4.7 |
5.2 |
5.4 |
| Run150–180° |
3.0 |
3.7 |
4.2 |
4.4 |
These are simplified estimates based on hull speed (6.8 kts),
SA/D (17.1), and empirical efficiency curves — not instrument-measured
polars. Real-world speed varies with sea state, bottom condition, sail trim, and current.
Speeds in gold approach hull speed;
bold gold means near or at hull speed.
Wind Range & Comfort Envelope
Estimated wind ranges for comfortable sailing on the Pearson 31 2 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–7 kts
7–20 kts
20–28 kts
28+ kts
Ghosting
0–7 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
7–20 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
20–28 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
28+ 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 Pearson 31 2.
|
Pearson 31 2 |
Catalina 309 |
Newport 31 |
Sabre 30 3 |
Tanzer 31 |
Tempest 31 Westerly |
| Dimensions |
| LOA |
30.7 |
32.8 |
30.7 |
30.6 |
30.6 |
30.6 |
| LWL |
25.4 |
26.5 |
27.0 |
25.5 |
25.0 |
24.5 |
| Beam |
10.7 |
11.5 |
10.5 |
10.5 |
10.5 |
10.8 |
| Displacement |
10 |
9,800 |
8 |
9 |
8 |
9 |
| Ballast |
3 |
4,000 |
2 |
3 |
3 |
2 |
| Sail Area |
493 |
452 |
447 |
461 |
468 |
400 |
| Performance |
| PHRF |
180 |
167 |
177 |
— |
165 |
— |
| SA/Disp |
17.1 |
16.4 |
17.2 |
16.6 |
18.3 |
14.8 |
| Bal/Disp |
38.0 |
40.8 |
— |
— |
39.8 |
29.8 |
| Comfort |
24.5 |
20.5 |
20.4 |
23.5 |
21.0 |
22.2 |
| Capsize |
1.98 |
2.15 |
2.06 |
1.99 |
2.08 |
2.08 |
| Hull Speed |
6.8 |
6.9 |
7.0 |
6.8 |
6.7 |
6.6 |