The Gambler 38 is aggressively canvassed for its weight, 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 28.0′, the Gambler 38 tops out around 7.1 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √28.0′ LWL = 7.1 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
23.6
Performance-oriented — carries a lot of canvas for its weight.
Ballast / Displacement
47.5%
Race-oriented ballast ratio — very stiff and powerful.
Displacement / Length
240
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
21.6
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.10
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
SA/Disp (Calculated)
22.9
Computed from measured I/J/P/E rather than reported sail area.
Pounds/Inch Immersion
7lbs
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
21.6
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
2.10
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 Gambler 38 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Tripp 38
65s/nm
Gambler 37
87s/nm
C&C 38
111s/nm
Tartan 3800
114s/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° |
3.3 |
4.2 |
4.7 |
4.9 |
| Close Reach60° |
4.0 |
5.1 |
5.7 |
5.9 |
| Beam Reach90° |
5.0 |
6.3 |
7.0 |
7.1 |
| Broad Reach120–135° |
4.6 |
5.8 |
6.5 |
6.7 |
| Run150–180° |
3.7 |
4.6 |
5.2 |
5.4 |
These are simplified estimates based on hull speed (7.1 kts),
SA/D (23.6), 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 Gambler 38 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–5 kts
5–18 kts
18–28 kts
28+ kts
Ghosting
0–5 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
5–18 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
18–28 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 Gambler 38.
|
Gambler 38 |
C&C 38 |
Gambler 37 |
Imx 38 |
Tartan 3800 |
Tripp 38 |
| Dimensions |
| LOA |
38.0 |
38.0 |
38.0 |
— |
38.0 |
38.0 |
| LWL |
28.0 |
— |
28.0 |
31.2 |
31.0 |
32.3 |
| Beam |
11.9 |
— |
11.9 |
12.1 |
12.4 |
12.3 |
| Displacement |
11 |
— |
11 |
11 |
16 |
10 |
| Ballast |
5 |
— |
5 |
6 |
7 |
5 |
| Sail Area |
760 |
— |
747 |
910 |
665 |
672 |
| Performance |
| PHRF |
— |
111 |
87 |
— |
114 |
65 |
| SA/Disp |
23.6 |
— |
23.2 |
28.2 |
16.8 |
22.5 |
| Bal/Disp |
47.5 |
— |
47.5 |
52.3 |
43.8 |
55.2 |
| Comfort |
21.6 |
— |
21.6 |
— |
26.1 |
16.8 |
| Capsize |
2.10 |
— |
2.10 |
2.13 |
1.98 |
2.26 |
| Hull Speed |
7.1 |
— |
7.1 |
7.5 |
7.5 |
7.6 |