The Dufour 44 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 40.1′, the Dufour 44 tops out around 8.5 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √40.1′ LWL = 8.5 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
21.7
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
27.9%
Light ballast — tends to be tender; reef earlier than the numbers suggest.
Displacement / Length
155
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
23.4
Acceptable coastal comfort — fine for weekends, notice the chop offshore.
Capsize Screening
2.07
Above the 2.0 offshore threshold — best suited for coastal and protected waters.
Pounds/Inch Immersion
2lbs
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
23.4
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
2.07
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
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° |
3.8 |
4.8 |
5.4 |
5.6 |
| Close Reach60° |
4.6 |
5.9 |
6.6 |
6.8 |
| Beam Reach90° |
5.7 |
7.2 |
8.0 |
8.7 |
| Broad Reach120–135° |
5.3 |
6.6 |
7.4 |
8.1 |
| Run150–180° |
4.2 |
5.3 |
5.9 |
6.2 |
These are simplified estimates based on hull speed (8.5 kts),
SA/D (21.7), 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 Dufour 44 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–6 kts
6–16 kts
16–24 kts
24+ kts
Ghosting
0–6 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
6–16 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
16–24 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
24+ 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 Dufour 44.
|
Dufour 44 |
Boreal 44 2 |
Cr 440 Ds 2 |
J/45 |
St Francis 460 |
Swan 45 |
| Dimensions |
| LOA |
45.6 |
45.5 |
45.4 |
45.6 |
45.9 |
45.4 |
| LWL |
40.1 |
41.8 |
43.8 |
39.0 |
45.5 |
39.6 |
| Beam |
14.6 |
14.4 |
11.0 |
14.1 |
26.3 |
12.8 |
| Displacement |
22 |
29 |
28 |
24 |
29 |
21 |
| Ballast |
6 |
8 |
11 |
10 |
— |
8 |
| Sail Area |
1 |
1,076 |
1 |
989 |
— |
— |
| Performance |
| SA/Disp |
21.7 |
18.2 |
19.5 |
17.2 |
— |
— |
| Bal/Disp |
27.9 |
28.7 |
40.8 |
41.7 |
— |
39.7 |
| Comfort |
23.4 |
30.2 |
41.1 |
35.9 |
12.9 |
— |
| Capsize |
2.07 |
1.87 |
1.44 |
1.55 |
3.40 |
— |
| Hull Speed |
8.5 |
8.7 |
8.9 |
10.5 |
9.0 |
— |