The Sun Odyssey 350 Jeanneau is moderately powered for comfortable coastal cruising, 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 30.8′, the Sun Odyssey 350 Jeanneau tops out around 7.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √30.8′ LWL = 7.4 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
17.7
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
27.9%
Light ballast — tends to be tender; reef earlier than the numbers suggest.
Displacement / Length
191
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
22.7
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.04
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
22.7
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
2.04
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 Sun Odyssey 350 Jeanneau sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
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° |
3.0 |
3.8 |
4.3 |
4.4 |
| Close Reach60° |
3.6 |
4.6 |
5.2 |
5.4 |
| Beam Reach90° |
4.5 |
5.7 |
6.3 |
6.9 |
| Broad Reach120–135° |
4.1 |
5.2 |
5.8 |
6.3 |
| Run150–180° |
3.3 |
4.2 |
4.7 |
4.9 |
These are simplified estimates based on hull speed (7.4 kts),
SA/D (17.7), 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 Sun Odyssey 350 Jeanneau — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–7 kts
7–18 kts
18–26 kts
26+ kts
Ghosting
0–7 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
7–18 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
18–26 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
26+ 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 Sun Odyssey 350 Jeanneau.
|
Sun Odyssey 350 Jeanneau |
Arcona 340 |
Elan 34 |
J/34 |
Sun Odyssey 34 Jeanneau |
Sweden Yachts 340 |
| Dimensions |
| LOA |
34.1 |
34.1 |
34.1 |
34.1 |
34.1 |
34.0 |
| LWL |
30.8 |
32.2 |
27.8 |
28.5 |
29.9 |
27.9 |
| Beam |
11.8 |
11.3 |
10.8 |
11.4 |
11.8 |
11.5 |
| Displacement |
12 |
11 |
9 |
9 |
11 |
12 |
| Ballast |
3 |
4 |
3 |
3 |
3 |
5 |
| Sail Area |
592 |
723 |
— |
525 |
570 |
598 |
| Performance |
| PHRF |
— |
— |
— |
120 |
— |
— |
| SA/Disp |
17.7 |
22.8 |
— |
20.1 |
18.4 |
17.7 |
| Bal/Disp |
27.9 |
36.5 |
35.4 |
41.3 |
34.0 |
41.1 |
| Comfort |
22.7 |
21.4 |
19.7 |
26.2 |
20.3 |
25.3 |
| Capsize |
2.04 |
2.01 |
2.08 |
1.71 |
2.13 |
1.98 |
| Hull Speed |
7.4 |
7.6 |
7.1 |
8.2 |
7.3 |
7.1 |