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Sailboat Specifications

Dufour 40

Fractional Sloop · Fin W/Bulb & Spade Rudder

Designed by Umberto Felci · Built by Dufour Yachts · First built 2005

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LOA 40.42 ft  ·  Beam 12.80 ft  ·  Displacement 17,196.00 lb  ·  Sail Area 866.41 ft²  ·  Fractional Sloop  ·  Fin W/Bulb & Spade Rudder
About the Dufour 40 Sailboat

French shipyard Dufour's 40-foot offering represents a well-balanced approach to cruising sailboat design, embodying the builder's decades of experience in creating boats that blend performance with comfort. This mid-sized cruiser falls into that sweet spot where sailing enthusiasts find a boat capable of both spirited coastal adventures and comfortable extended passages. Built with Dufour's characteristic attention to interior volume optimization, the boat maximizes living space without sacrificing sailing characteristics. The design philosophy emphasizes ease of handling, making it accessible to couples or small crews who want to venture beyond protected waters without requiring a large sailing team. The hull design strikes a thoughtful balance between stability and performance, allowing the boat to handle a variety of conditions with confidence. While not specifically designed as a racing machine, it possesses enough sailing ability to satisfy those who enjoy spirited passages and the occasional club race. Interior accommodations typically reflect Dufour's reputation for creating livable spaces that work well for both short coastal hops and longer cruising adventures. The boat's size and configuration make it particularly well-suited for sailors transitioning from smaller boats or those seeking a capable platform for regional cruising with occasional offshore passages.

Dimensions & Specifications
LOA (Length Overall) 40.42 ft / 12.32 m
LWL (Waterline Length) 35.24 ft / 10.74 m
Beam 12.80 ft / 3.90 m
Max Draft 5.41 ft / 1.65 m
Displacement 17,196.00 lb / 7,800 kg
Ballast 6,206.00 lb / 2,815 kg
Sail Area (Reported) 866.41 ft² / 80.49 m²
Design & Construction
Hull Type Fin w/bulb & spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Umberto Felci
Builder Dufour Yachts
First Built 2005
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Engine & Accommodations
Horsepower 40
Fuel Capacity 42
Water Capacity 87
Frequently Asked Questions

What is the Dufour 40's sail area to displacement ratio?

The Dufour 40 has a Sail Area to Displacement ratio (SA/D) of 20.89. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Dufour 40's comfort ratio?

The Dufour 40 has a Ted Brewer Comfort Ratio of 24.22. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Dufour 40 safe for offshore sailing?

The Dufour 40 has a Capsize Screening Formula value of 1.99. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Dufour 40?

The theoretical hull speed of the Dufour 40 is 7.95 knots, calculated from its waterline length.

How much does a Dufour 40 weigh?

The Dufour 40 has a displacement of 17,196.00 lb and a length overall (LOA) of 40.42 ft.

Who designed the Dufour 40?

The Dufour 40 was designed by Umberto Felci, first built in 2005.