The Yamaha 33 is moderately powered for comfortable coastal cruising, with acceptable motion comfort for coastal passages, and respectable in club 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 26.9′, the Yamaha 33 tops out around 7.0 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √26.9′ LWL = 6.9 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
144s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
SA / Displacement
17.4
Moderate sail power — a capable coastal cruiser, not overpowered.
Comfort Ratio
21.3
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.07
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
21.3
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
2.07
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 Yamaha 33 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
Cs 34
132s/nm
Ericson 33
134s/nm
Yamaha 33
144s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
Hunter 336
162s/nm
Cal 34
174s/nm
Westerly 33
210s/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 |
3.5 |
3.9 |
4.1 |
| Close Reach60° |
3.4 |
4.3 |
4.8 |
5.0 |
| Beam Reach90° |
4.1 |
5.2 |
5.9 |
6.1 |
| Broad Reach120–135° |
3.8 |
4.8 |
5.4 |
5.6 |
| Run150–180° |
3.1 |
3.9 |
4.3 |
4.5 |
These are simplified estimates based on hull speed (7.0 kts),
SA/D (17.4), 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 Yamaha 33 — 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 Yamaha 33.
|
Yamaha 33 |
Cal 34 |
Cs 34 |
Ericson 33 |
Hunter 336 |
Westerly 33 |
| Dimensions |
| LOA |
33.4 |
33.2 |
33.5 |
33.5 |
33.5 |
33.3 |
| LWL |
26.9 |
26.0 |
27.7 |
26.8 |
28.6 |
28.5 |
| Beam |
11.0 |
10.0 |
11.3 |
11.2 |
11.7 |
11.2 |
| Displacement |
9 |
9 |
10 |
9 |
11 |
14 |
| Ballast |
4 |
3 |
— |
3 |
4 |
6 |
| Sail Area |
492 |
503 |
533 |
573 |
573 |
526 |
| Performance |
| PHRF |
144 |
174 |
132 |
134 |
162 |
210 |
| SA/Disp |
17.4 |
18.0 |
17.9 |
20.5 |
18.6 |
14.3 |
| Bal/Disp |
— |
39.5 |
— |
41.6 |
37.2 |
— |
| Comfort |
21.3 |
24.3 |
22.0 |
20.5 |
21.5 |
29.8 |
| Capsize |
2.07 |
1.89 |
2.06 |
2.11 |
2.10 |
1.84 |
| Hull Speed |
7.0 |
6.8 |
7.1 |
6.9 |
7.2 |
7.2 |