The Regatta 330 Westerly 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 30.0′, the Regatta 330 Westerly tops out around 7.3 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √30.0′ LWL = 7.3 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
16.6
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
37.2%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
187
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
22.6
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.00
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
22.6
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
2.00
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 Regatta 330 Westerly sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
J/33
84s/nm
Frers 33
108s/nm
Dehler 34
132s/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° |
2.9 |
3.6 |
4.1 |
4.3 |
| Close Reach60° |
3.5 |
4.4 |
4.9 |
5.1 |
| Beam Reach90° |
4.3 |
5.4 |
6.0 |
6.6 |
| Broad Reach120–135° |
4.0 |
5.0 |
5.6 |
6.1 |
| Run150–180° |
3.2 |
4.0 |
4.5 |
4.7 |
These are simplified estimates based on hull speed (7.3 kts),
SA/D (16.6), 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 Regatta 330 Westerly — 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 Regatta 330 Westerly.
|
Regatta 330 Westerly |
Dehler 34 |
Frers 33 |
Hunter 333 |
J/33 |
Sun Odyssey 33 Jeanneau |
| Dimensions |
| LOA |
33.2 |
33.1 |
33.3 |
33.3 |
33.3 |
33.1 |
| LWL |
30.0 |
27.2 |
26.5 |
28.8 |
27.9 |
28.9 |
| Beam |
11.2 |
11.2 |
11.3 |
11.5 |
11.4 |
11.5 |
| Displacement |
11 |
8 |
9 |
11 |
9 |
9 |
| Ballast |
4 |
3 |
4 |
4 |
3 |
3 |
| Sail Area |
520 |
492 |
557 |
520 |
530 |
538 |
| Performance |
| PHRF |
— |
132 |
108 |
— |
84 |
— |
| SA/Disp |
16.6 |
18.5 |
20.7 |
16.8 |
20.7 |
19.0 |
| Bal/Disp |
37.2 |
45.0 |
44.4 |
40.0 |
41.1 |
41.4 |
| Comfort |
22.6 |
18.9 |
19.4 |
21.7 |
26.2 |
18.9 |
| Capsize |
2.00 |
2.16 |
2.17 |
2.07 |
1.67 |
2.16 |
| Hull Speed |
7.3 |
7.0 |
6.9 |
7.2 |
8.1 |
7.2 |