Detailed sailboat specifications and datasheets since 2015
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Dufour 45 Deep draft

Sailboat specifications

The Dufour 45 is a 44’7” (13.6m) fast cruising sailboat designed by Felci Yachts (Italy). She was built between 2008 and 2010 by Dufour (France). The Deep draft version offers a deeper L-shaped keel bringing extra performance especially upwind.

The Dufour 45 is as well listed, on, in Standard version (see all the versions compared).

Dufour 45's main features

Dufour 45
Deep draft
Hull type
Offshore fast cruising sailboat
Sailboat builder
Sailboat designer
GRP (glass reinforced polyester):
- Hull: Single skin fiberglass polyester
- Deck: Sandwich foam fiberglass polyester
First built hull
Last built hull
Keel : L-shaped keel (with bulb)
Twin helm wheels
Single spade rudder
EC design category
 iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)

A: Wind < force 9, Waves < 10m
B: Wind < force 8, Waves < 8m
C: Wind < force 6, Waves < 4m
D: Wind < force 4, Waves < 0,5m
Standard public price ex. VAT (indicative only)
190 000

Dufour 45's main dimensions

Hull length
44’ 7”13.6 m
Waterline length
39’ 11”12.16 m
Beam (width)
14’ 1”4.3 m
7’ 6”2.3 m
Light displacement (MLC)
23457 lb10640 kg
Ballast weight
6834 lb3100 kg

Dufour 45's rig and sails

Upwind sail area
1216 ft²113 m²
Mainsail area
581 ft²54 m²
Genoa area
635 ft²59 m²
Rigging type
Sloop Marconi 19/20
Mast configuration
Keel stepped mast
Rotating spars
Number of levels of spreaders
Spreaders angle
Spars construction
Aluminum spars

Dufour 45's performances

Upwind sail area to displacement
 iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.

The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.

Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat.
251 ft²/T23.36 m²/T
Displacement-length ratio (DLR)
 iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).
The DLR can be used to compare the relative mass of different sailboats no matter what their length:

a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.
Ballast ratio
 iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.

The higher the ballast ratio is, the greater is the stability.
29 %
Critical hull speed
 iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".
The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34.
8.46 knots

Dufour 45's auxiliary engine

1 inboard engine
Engine(s) power
55 HP
Fuel type
Fuel tank capacity
66 gal250 liters

Dufour 45's accommodations and layout

Closing aft cockpit with opening system
Cabin(s) (min./max.)
3 / 4
Berth(s) (min./max.)
6 / 10
Freshwater tank capacity
137.4 gal520 liters
Maximum headroom
6’ 8”2.05 m

Dufour 45's saloon

Maximum headroom
6’ 5”1.95 m
Saloon table length
4’1.22 m
Saloon table width
3’ 7”1.09 m

Dufour 45's fore cabin

Maximum headroom
6’ 4”1.91 m
Berth length
6’ 7”2 m
Berth width
5’ 7”1.7 m

Dufour 45's aft cabin

Maximum headroom
6’ 8”2.05 m
Berth length
6’ 6”1.99 m
Berth width
4’ 4”1.3 m
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