The Dufour 380 Sailboat
The Dufour 380, a fractional sloop, was designed by Umberto Felci & Patrick Roséo and built in France by Dufour Yachts.
A Dufour 380
Published Specification for the Dufour 380
Underwater Profile: Bulb fin keel & spade rudder
Hull Material: GRP (Fiberglass)
Length Overall: 39'0" (11.9m)
Waterline Length: 32'5" (9.9m)
Beam: 12'9" (3.9m)
Draft: 6'3" (1.9m)
Rig Type: Fractional sloop
Displacement: 15,564lb (7,060kg)
Designer: Umberto Felci & Patrick Roséo
Builder: Dufour (France)
Year First Built: 2011
Owners Association: Dufour Owners Association
Published Design Ratios for the Dufour 380
1. Sail Area/Displacement Ratio: 14.7
- Less than 16 would be considered under-powered;
- 16 to 20 would indicate reasonably good performance;
- Over 20 suggests relatively high performance.
2. Ballast/Displacement Ratio: 27.6
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 203
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 23.9
- Under 20 indicates a lightweight racing boat
- 20 to 30 indicates a coastal cruiser
- 30 to 40 indicates a moderate offshore cruising boat
- 40 to 50 indicates a heavy offshore boat
- Over 50 indicates an extremely heavy offshore boat
5. Capsize Screening Formula: 2.0
- Under 2.0 (the lower the better): Better suited for ocean passages
- Over 2.0: Less suited for ocean passages
read more about these all-revealing numbers...
Summary Analysis of the Design Ratios for the Dufour 380
1. A Sail Area/Displacement Ratio of just 14.7 suggests that the Dufour 380 will need a stiff breeze to get her going. In light conditions, unless you've got plenty of time on your hands, motor-sailing may be the way to go.
2. A Ballast/Displacement Ratio of 27.6 means that a sailboat like the Dufour 380 (which doesn't have a stiffness-enhancing bulb keel), is likely to benefit from being reefed early to keep her sailing upright in a moderate breeze.
3. A Displacement/Length Ratio of 203, tells us the Dufour 380 is a moderate displacement cruiser, which means she'll carry all your cruising gear without it having a dramatic effect on her performance. Most of today's sailboats intended for offshore cruising fall into this displacement category.
4. Ted Brewer's Comfort Ratio of 23.9 suggests that crew comfort of a Dufour 380 in a seaway is similar to what you would associate with the motion of a coastal cruiser with moderate stability, which is not encouraging news for anyone prone to seasickness.
5. The Capsize Screening Formula (CSF) of 2.0 indicates that a Dufour 380 would not be the wisest choice of sailboat for ocean passage-making owing to the lower resistance to capsize in strong winds and heavy seas that is associated with sailboats with a CSF of 2.0 and above.
Other sailboats in the Dufour range include:
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