The Bavaria 31 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 27.6′, the Bavaria 31 tops out around 7.0 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √27.6′ LWL = 7.0 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
177s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
SA / Displacement
17.5
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
35.7%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
197
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
20.6
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.96
Below the 2.0 offshore threshold — acceptable for ocean passages.
Pounds/Inch Immersion
7lbs
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
20.6
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
1.96
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 Bavaria 31 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
Bavaria 960
173s/nm
Bavaria 31
177s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
Hunter 31
183s/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° |
2.8 |
3.6 |
4.0 |
4.1 |
| Close Reach60° |
3.4 |
4.3 |
4.8 |
5.0 |
| Beam Reach90° |
4.2 |
5.3 |
5.9 |
6.4 |
| Broad Reach120–135° |
3.9 |
4.9 |
5.4 |
5.9 |
| Run150–180° |
3.1 |
3.9 |
4.4 |
4.5 |
These are simplified estimates based on hull speed (7.0 kts),
SA/D (17.5), 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 Bavaria 31 — 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 Bavaria 31.
|
Bavaria 31 |
Bavaria 960 |
Hunter 31 |
Northshore 310 |
Sun Odyssey 30I Perf Jeanneau |
Sun Odyssey 31 Jeanneau |
| Dimensions |
| LOA |
31.2 |
31.2 |
31.3 |
31.2 |
31.2 |
31.2 |
| LWL |
27.6 |
27.2 |
26.3 |
28.1 |
27.6 |
26.9 |
| Beam |
11.2 |
11.2 |
10.9 |
10.0 |
10.8 |
10.8 |
| Displacement |
9 |
9 |
9 |
7 |
9 |
8 |
| Ballast |
3 |
3 |
4 |
3 |
2 |
3 |
| Sail Area |
484 |
495 |
458 |
502 |
484 |
452 |
| Performance |
| PHRF |
177 |
173 |
183 |
— |
— |
— |
| SA/Disp |
17.5 |
17.4 |
16.2 |
21.7 |
17.3 |
16.9 |
| Bal/Disp |
35.7 |
36.4 |
41.2 |
— |
26.3 |
35.0 |
| Comfort |
20.6 |
21.1 |
22.4 |
17.9 |
— |
20.1 |
| Capsize |
1.96 |
2.09 |
2.05 |
2.07 |
— |
2.10 |
| Hull Speed |
7.0 |
7.0 |
6.9 |
7.1 |
— |
7.0 |