The Corsair 36 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 30.4′, the Corsair 36 Westerly tops out around 7.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √30.4′ 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
17.1
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
42.6%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
246
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
25.9
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.
Pounds/Inch Immersion
8lbs
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
25.9
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 Corsair 36 Westerly sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
J/35
72s/nm
Ericson 36
111s/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° |
3.0 |
3.7 |
4.2 |
4.3 |
| Close Reach60° |
3.6 |
4.5 |
5.0 |
5.3 |
| Beam Reach90° |
4.4 |
5.5 |
6.2 |
6.4 |
| Broad Reach120–135° |
4.0 |
5.1 |
5.7 |
6.0 |
| Run150–180° |
3.2 |
4.1 |
4.6 |
4.8 |
These are simplified estimates based on hull speed (7.4 kts),
SA/D (17.1), 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 Corsair 36 Westerly — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–7 kts
7–22 kts
22–32 kts
32+ kts
Ghosting
0–7 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
7–22 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
22–32 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
32+ 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 Corsair 36 Westerly.
|
Corsair 36 Westerly |
Centurion 36 |
Ericson 36 |
Galway 36 Westerly |
J/35 |
Solway 36 Westerly |
| Dimensions |
| LOA |
35.7 |
35.7 |
35.6 |
35.8 |
35.5 |
35.8 |
| LWL |
30.4 |
28.8 |
29.0 |
30.3 |
30.0 |
30.3 |
| Beam |
12.5 |
12.3 |
11.8 |
11.2 |
12.0 |
11.2 |
| Displacement |
15 |
16 |
11 |
17 |
10 |
17 |
| Ballast |
6 |
5 |
5 |
8 |
4 |
8 |
| Sail Area |
662 |
902 |
599 |
616 |
590 |
500 |
| Performance |
| PHRF |
— |
— |
111 |
— |
72 |
— |
| SA/Disp |
17.1 |
22.7 |
18.8 |
14.8 |
19.9 |
12.0 |
| Bal/Disp |
42.6 |
33.6 |
45.1 |
47.8 |
40.0 |
— |
| Comfort |
25.9 |
28.4 |
21.6 |
33.9 |
27.5 |
33.8 |
| Capsize |
2.01 |
1.96 |
2.09 |
1.73 |
1.68 |
1.73 |
| Hull Speed |
7.4 |
7.2 |
7.2 |
7.4 |
8.5 |
7.4 |