Sailboat specifications and datasheets

Dufour 45 standard

The Dufour 45, here in "standard" version, is a 44’7” monohull sailboat designed by Umberto Felci. She was built by Dufour (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 2008 and 2010.

The Dufour 45 is as well listed, on, in version Deep draft.

Dufour 45 Dufour 45 sailplanDufour 45 layoutDufour 45 layoutDufour 45 cockpitDufour 45 accommodationsDufour 45 accommodationsDufour 45 accommodations
Dufour 45's   Main Features
Model Dufour 45
Version Standard
Type of hull Monohull
Category Offshore fast cruising sailboat
Designer Umberto Felci
Construction Hull:
monolithic fiberglass / polyester
sandwich foam / fiberglass / polyester
First built hull 2008
Last built hull 2010
Appendages Keel :
L-shaped keel (with bulb)
Helm 2 wheels
Rudder 1 spade rudder
Cockpit Open aft cockpit with closing system
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) About
190 000
Dufour 45's   Main dimensions
Hull length 44’ 7”
Waterline length 39’ 11”
Beam (width) 14’ 1”
Draft 6’ 5”
Light displacement 23964 lbs
Ballast weight 7275 lbs
Dufour 45's   Rig and sails
Upwind sail area 1216 sq.ft
Mainsail area 581 sq.ft
Genoa area 635 sq.ft
Rigging type Sloop Marconi 19/20
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Number of levels of spreaders 3
Spreaders angle Swept-back
Dufour 45's   Performances
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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 ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
30 %
Hull speediAs 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
Engine(s) 1
Engine type Inboard engine
Engine 55 HP
Fuel type Diesel
Fuel tank capacity 66 gal
Dufour 45's   Accommodation
Cabin(s) (min/max) 3 / 4
Berth(s) (min/max) 6 / 10
Head(s) 2
Fresh water tank capacity 137.4 gal
Maximum headroom 6’ 8”
Dufour 45's   Saloon
Maximum headroom 6’ 5”
Saloon table length 4’
Saloon table width 3’ 7”
Dufour 45's   Fore cabin
Maximum headroom 6’ 4”
Berth length 6’ 7”
Berth width 5’ 7”
Dufour 45's   Aft cabin
Maximum headroom 6’ 8”
Berth length 6’ 6”
Berth width 4’ 4”

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