The Ct 38 is moderately powered for comfortable coastal cruising, with a gentle bluewater motion, designed for cruising comfort rather than 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 Ct 38 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
162s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
SA / Displacement
15.2
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
31.3%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
382
Heavy displacement — a slow, steady, seakindly hull.
Comfort Ratio
50.3
Very comfortable in a seaway — a genuine bluewater motion.
Capsize Screening
1.53
Below the 2.0 offshore threshold — acceptable for ocean passages.
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
50.3
Very comfortable in a seaway — a genuine bluewater motion.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.53
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 Ct 38 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Cruiser/Racer 90–150
Cruiser 150–210
Heavy Cruiser 210–300
Ericson 381
114s/nm
Tartan 38
114s/nm
Ct 38
162s/nm
Typical cruiser — designed for comfort and ease, not podium finishes.
Alberg 37
162s/nm
Csy 37
186s/nm
Island Trader 38
219s/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 |
4.2 |
| Close Reach60° |
3.5 |
4.4 |
4.9 |
5.1 |
| Beam Reach90° |
4.3 |
5.4 |
6.0 |
6.3 |
| Broad Reach120–135° |
4.0 |
5.0 |
5.6 |
5.8 |
| Run150–180° |
3.2 |
4.0 |
4.5 |
4.7 |
These are simplified estimates based on hull speed (7.6 kts),
SA/D (15.2), 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 Ct 38 — 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 Ct 38.
|
Ct 38 |
Alberg 37 |
Csy 37 |
Ericson 381 |
Island Trader 38 |
Tartan 38 |
| Dimensions |
| LOA |
37.3 |
37.2 |
37.3 |
37.5 |
37.3 |
37.3 |
| LWL |
32.5 |
26.5 |
29.2 |
30.5 |
30.3 |
28.5 |
| Beam |
11.8 |
10.2 |
12.0 |
12.0 |
12.0 |
11.8 |
| Displacement |
29 |
16 |
22 |
14 |
26 |
15 |
| Ballast |
9 |
6 |
8 |
6 |
7 |
7 |
| Sail Area |
900 |
646 |
610 |
678 |
567 |
667 |
| Performance |
| PHRF |
162 |
162 |
186 |
114 |
219 |
114 |
| SA/Disp |
15.2 |
15.8 |
12.5 |
18.4 |
10.3 |
17.5 |
| Bal/Disp |
31.3 |
38.7 |
38.6 |
43.8 |
26.5 |
— |
| Comfort |
50.3 |
39.8 |
39.3 |
24.9 |
46.0 |
28.4 |
| Capsize |
1.53 |
1.59 |
1.72 |
1.98 |
1.62 |
1.90 |
| Hull Speed |
7.6 |
6.9 |
7.2 |
7.4 |
7.4 |
7.2 |