The Stern 37 is aggressively canvassed for its weight, with acceptable motion comfort for coastal passages.
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 33.3′, the Stern 37 tops out around 7.7 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √33.3′ LWL = 7.7 kts
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
22.1
Performance-oriented — carries a lot of canvas for its weight.
Comfort Ratio
22.3
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.03
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Pounds/Inch Immersion
1lbs
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
22.3
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
2.03
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
PHRF Fleet Position
Where the Stern 37 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Hanse 385
89s/nm
Malo 36
144s/nm
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° |
3.5 |
4.5 |
5.0 |
5.2 |
| Close Reach60° |
4.3 |
5.4 |
6.0 |
6.3 |
| Beam Reach90° |
5.2 |
6.6 |
7.4 |
7.7 |
| Broad Reach120–135° |
4.8 |
6.1 |
6.8 |
7.1 |
| Run150–180° |
3.9 |
4.9 |
5.5 |
5.7 |
These are simplified estimates based on hull speed (7.7 kts),
SA/D (22.1), 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 Stern 37 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–5 kts
5–16 kts
16–24 kts
24+ kts
Ghosting
0–5 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
5–16 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
16–24 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
24+ 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 Stern 37.
|
Stern 37 |
Bavaria 370 |
First 375 Beneteau |
Hanse 385 |
Hanse 388 |
Malo 36 |
| Dimensions |
| LOA |
37.2 |
37.4 |
37.1 |
37.4 |
37.4 |
37.2 |
| LWL |
33.3 |
32.5 |
33.2 |
34.1 |
34.1 |
31.0 |
| Beam |
12.2 |
12.5 |
12.3 |
12.7 |
12.8 |
11.4 |
| Displacement |
13 |
16 |
15 |
16 |
18 |
16 |
| Ballast |
— |
5 |
5 |
4 |
5 |
6 |
| Sail Area |
796 |
699 |
648 |
724 |
775 |
785 |
| Performance |
| PHRF |
— |
— |
— |
89 |
— |
144 |
| SA/Disp |
22.1 |
17.5 |
16.8 |
17.8 |
18.0 |
19.1 |
| Bal/Disp |
— |
35.6 |
34.3 |
29.0 |
28.9 |
— |
| Comfort |
22.3 |
25.2 |
24.5 |
24.9 |
26.9 |
31.1 |
| Capsize |
2.03 |
1.98 |
1.98 |
1.99 |
1.95 |
1.78 |
| Hull Speed |
7.7 |
7.6 |
7.7 |
7.8 |
7.8 |
7.5 |