The Jouet 37 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 30.0′, the Jouet 37 tops out around 7.3 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √30.0′ LWL = 7.3 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
14.1
Moderate sail power — a capable coastal cruiser, not overpowered.
Ballast / Displacement
37.8%
Typical cruising ballast — balanced stability and motion underway.
Displacement / Length
288
Moderate-heavy — carries provisions well, deliberate in light air.
Comfort Ratio
29.0
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
1.95
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
29.0
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
1.95
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 Jouet 37 sits on the PHRF handicap spectrum — lower numbers mean faster boats.
Racer 0–90
Cruiser/Racer 90–150
Cruiser 150–210
Yamaha 36
117s/nm
Hunter 36
132s/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° |
2.7 |
3.4 |
3.8 |
3.9 |
| Close Reach60° |
3.2 |
4.1 |
4.6 |
4.8 |
| Beam Reach90° |
4.0 |
5.0 |
5.6 |
5.9 |
| Broad Reach120–135° |
3.7 |
4.6 |
5.2 |
5.4 |
| Run150–180° |
2.9 |
3.7 |
4.2 |
4.3 |
These are simplified estimates based on hull speed (7.3 kts),
SA/D (14.1), 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 Jouet 37 — 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 Jouet 37.
|
Jouet 37 |
Hunter 36 |
J36 Classic |
S2 110 C |
Sigma 36 Thomas |
Yamaha 36 |
| Dimensions |
| LOA |
36.0 |
35.9 |
36.0 |
36.0 |
36.0 |
35.9 |
| LWL |
30.0 |
29.5 |
30.5 |
28.3 |
28.8 |
29.1 |
| Beam |
12.6 |
11.1 |
11.8 |
11.9 |
11.5 |
11.8 |
| Displacement |
17 |
13 |
10 |
16 |
12 |
12 |
| Ballast |
6 |
6 |
4 |
6 |
— |
5 |
| Sail Area |
591 |
604 |
662 |
625 |
605 |
643 |
| Performance |
| PHRF |
— |
132 |
— |
— |
— |
117 |
| SA/Disp |
14.1 |
17.1 |
22.1 |
15.8 |
18.2 |
19.1 |
| Bal/Disp |
37.8 |
44.4 |
— |
— |
— |
44.7 |
| Comfort |
29.0 |
27.0 |
19.1 |
29.8 |
23.9 |
23.2 |
| Capsize |
1.95 |
1.86 |
2.15 |
1.90 |
1.99 |
2.04 |
| Hull Speed |
7.3 |
7.3 |
7.4 |
7.1 |
7.2 |
7.2 |