The Cal 43 is well-powered with enough sail area to move in light air, with a steady, comfortable ride offshore, 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 32.5′, the Cal 43 tops out around 7.6 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √32.5′ LWL = 7.6 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
108s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
SA / Displacement
18.1
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
40.0%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
260
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
33.6
Good offshore comfort — steady enough for multi-day passages.
Capsize Screening
1.70
Below the 2.0 offshore threshold — acceptable for ocean passages.
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
33.6
Good offshore comfort — steady enough for multi-day passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.70
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 Cal 43 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
J/42
78s/nm
Swan 43 Ss
102s/nm
Cal 43
108s/nm
Cruiser/racer — competitive in club racing, comfortable cruising.
Pearson 43
135s/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° |
3.1 |
4.0 |
4.4 |
4.6 |
| Close Reach60° |
3.8 |
4.8 |
5.4 |
5.6 |
| Beam Reach90° |
4.7 |
5.9 |
6.6 |
6.9 |
| Broad Reach120–135° |
4.3 |
5.4 |
6.1 |
6.3 |
| Run150–180° |
3.4 |
4.4 |
4.9 |
5.1 |
These are simplified estimates based on hull speed (7.6 kts),
SA/D (18.1), 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 Cal 43 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–6 kts
6–20 kts
20–30 kts
30+ kts
Ghosting
0–6 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
6–20 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
20–30 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
30+ 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 Cal 43.
|
Cal 43 |
Catalina 425 |
Cc 42 Custom |
J/42 |
Pearson 43 |
Swan 43 Ss |
| Dimensions |
| LOA |
42.7 |
42.5 |
42.5 |
42.5 |
42.8 |
42.8 |
| LWL |
32.5 |
37.0 |
34.3 |
36.0 |
31.3 |
31.0 |
| Beam |
11.5 |
13.8 |
12.9 |
13.5 |
11.8 |
11.7 |
| Displacement |
20 |
21 |
20 |
19 |
21 |
19 |
| Ballast |
8 |
8 |
— |
8 |
9 |
10 |
| Sail Area |
832 |
870 |
835 |
840 |
797 |
825 |
| Performance |
| PHRF |
108 |
— |
— |
78 |
135 |
102 |
| SA/Disp |
18.1 |
18.3 |
18.2 |
17.0 |
16.4 |
18.1 |
| Bal/Disp |
40.0 |
40.0 |
— |
42.1 |
42.0 |
— |
| Comfort |
33.6 |
25.4 |
27.9 |
34.1 |
36.5 |
33.7 |
| Capsize |
1.70 |
2.00 |
1.91 |
1.59 |
1.69 |
1.73 |
| Hull Speed |
7.6 |
8.2 |
7.8 |
9.8 |
7.5 |
7.5 |