The Ocean 33 Westerly is with acceptable motion comfort for coastal passages.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
7.1 kts
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 28.3′, the Ocean 33 Westerly tops out around 7.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √28.3′ LWL = 7.1 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
Comfort Ratio
23.0
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.01
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Hull Speed
7.1kts
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
23.0
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
2.01
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 Ocean 33 Westerly sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cs 34
Island Packet 320
How It Compares
Side-by-side with the boats most often cross-shopped against the Ocean 33 Westerly.
| Ocean 33 Westerly | Cs 34 | Hunter 333 | Island Packet 320 | Parker 335 | Regatta 330 Westerly | |
|---|---|---|---|---|---|---|
| Dimensions | ||||||
| LOA | 33.3 | 33.5 | 33.3 | 33.3 | 33.5 | 33.2 |
| LWL | 28.3 | 27.7 | 28.8 | 27.0 | 28.6 | 30.0 |
| Beam | 11.2 | 11.3 | 11.5 | 11.8 | 10.6 | 11.2 |
| Displacement | 11 | 10 | 11 | 13 | 9 | 11 |
| Ballast | 4 | — | 4 | 6 | 2 | 4 |
| Sail Area | — | 533 | 520 | 556 | 570 | 520 |
| Performance | ||||||
| PHRF | — | 132 | — | 204 | — | — |
| SA/Disp | — | 17.9 | 16.8 | 15.8 | 20.4 | 16.6 |
| Bal/Disp | — | — | 40.0 | 44.4 | — | 37.2 |
| Comfort | 23.0 | 22.0 | 21.7 | 27.2 | 21.0 | 22.6 |
| Capsize | 2.01 | 2.06 | 2.07 | 1.98 | 2.01 | 2.00 |
| Hull Speed | 7.1 | 7.1 | 7.2 | 7.0 | 7.2 | 7.3 |