The Cc 37 is well-powered with enough sail area to move in light air, 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 28.8′, the Cc 37 tops out around 7.2 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √28.8′ LWL = 7.2 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
18.3
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
42.0%
Stiff enough to carry a big genoa comfortably into moderate breeze.
Displacement / Length
269
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
26.7
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.93
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
26.7
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
1.93
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 Cc 37 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Ericson 381
114s/nm
Ericson 38
126s/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 |
4.4 |
| Close Reach60° |
3.6 |
4.5 |
5.1 |
5.3 |
| Beam Reach90° |
4.4 |
5.6 |
6.2 |
6.5 |
| Broad Reach120–135° |
4.1 |
5.1 |
5.7 |
6.0 |
| Run150–180° |
3.2 |
4.1 |
4.6 |
4.8 |
These are simplified estimates based on hull speed (7.2 kts),
SA/D (18.3), 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 Cc 37 — 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 Cc 37.
|
Cc 37 |
Cc 38 3 |
Ericson 38 |
Ericson 381 |
Farr 37 128 |
Landfall 38 Cc |
| Dimensions |
| LOA |
37.6 |
37.6 |
37.7 |
37.5 |
37.5 |
37.6 |
| LWL |
28.8 |
31.0 |
30.5 |
30.5 |
29.1 |
30.2 |
| Beam |
11.7 |
12.8 |
12.0 |
12.0 |
12.2 |
12.0 |
| Displacement |
14 |
14 |
14 |
14 |
12 |
16 |
| Ballast |
6 |
6 |
5 |
6 |
5 |
6 |
| Sail Area |
670 |
— |
709 |
678 |
662 |
648 |
| Performance |
| PHRF |
— |
— |
126 |
114 |
— |
— |
| SA/Disp |
18.3 |
— |
19.6 |
18.4 |
20.1 |
15.9 |
| Bal/Disp |
42.0 |
43.8 |
— |
43.8 |
46.3 |
38.9 |
| Comfort |
26.7 |
— |
24.2 |
24.9 |
21.4 |
29.1 |
| Capsize |
1.93 |
— |
2.00 |
1.98 |
2.12 |
1.88 |
| Hull Speed |
7.2 |
— |
7.4 |
7.4 |
7.2 |
7.4 |