Detailed sailboat specifications and datasheets since 2015
MetricSI (m)
Imperial & Metricboth
ImperialIMP (ft)

Dufour 56 Exclusive (Standard) vs Dufour 56 Exclusive (Shoal draft)

Main featuresDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Model
Dufour 56 Exclusive
Dufour 56 Exclusive
Version
Standard
Shoal draft
Hull type
Monohull
Monohull
Category
Offshore fast cruising sailboat
Offshore cruising sailboat
Sailboat builder
Dufour
Dufour
Sailboat designer
Sailboat range
Country
France
France
Construction
GRP (glass reinforced polyester):
Sandwich fiberglass polyester
GRP (glass reinforced polyester):
Sandwich fiberglass polyester
First built hull
2016
2016
Last built hull
Still in production
Still in production
Appendages
Keel : L-shaped keel (with bulb)
Keel : L-shaped keel (with bulb)
Helm
Twin helm wheels
Twin helm wheels
Rudder
Single spade rudder
Single spade rudder
Unsinkable
No
No
Trailerable
No
No
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
A
A
Standard public price ex. VAT (indicative only)
487668 2020
487668 2020
 
Main dimensionsDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Overall length
56’ 4”17.15 m
56’ 4”17.15 m
Hull length
53’ 6”16.3 m
53’ 6”16.3 m
Waterline length
49’ 10”15.17 m
49’ 10”15.17 m
Beam (width)
16’ 7”5.05 m
16’ 7”5.05 m
Draft
8’ 2”2.5 m
7’ 2”2.2 m
Light displacement (MLC)
38856 lb17625 kg
38856 lb17625 kg
Ballast weight
10803 lb4900 kg
10803 lb4900 kg
Ballast type
Cast iron
Cast iron
 
Rig and sailsDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Upwind sail area
1525 ft²141.67 m²
1525 ft²141.67 m²
Mainsail area
782 ft²72.67 m²
782 ft²72.67 m²
Genoa area
743 ft²69 m²
743 ft²69 m²
I
 iFore triangle height (from mast foot to fore stay top attachment)
67’20.43 m
67’20.43 m
J
 iFore triangle base (from mast foot to bottom of forestay)
20’ 4”6.2 m
20’ 4”6.2 m
P
 iMainsail hoist measurement (from tack to head)
65’ 7”20 m
65’ 7”20 m
E
 iMainsail foot measurement (from tack to clew)
20’ 4”6.2 m
20’ 4”6.2 m
Rigging type
Sloop Marconi 9/10
Sloop Marconi 9/10
Mast configuration
Deck stepped mast
Deck stepped mast
Rotating spars
No
No
Number of levels of spreaders
2
2
Spreaders angle
Swept-back
Swept-back
Spars construction
Aluminum spars
Aluminum spars
Standing rigging
1x19 strand wire continuous
1x19 strand wire continuous
 
PerformancesDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
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.
225 ft²/T20.92 m²/T
225 ft²/T20.92 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.
143
143
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.
28 %
28 %
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.
9.45 knots
9.45 knots
 
Auxiliary engineDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Engine(s)
1 inboard engine
1 inboard engine
Engine(s) power (min./max.)
110 HP / 150 HP
110 HP / 150 HP
Fuel type
Diesel
Diesel
 
Accommodations and layoutDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Cockpit
Closing aft cockpit with opening system
Closing aft cockpit with opening system
Freshwater tank capacity
179.6 gal680 liters
179.6 gal680 liters
Fridge/ice-box capacity
51.5 gal195 liters
51.5 gal195 liters
Boiler capacity
13.2 gal50 liters
13.2 gal50 liters
 
SaloonDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Berth length
6’ 11”2.1 m
6’ 11”2.1 m
 
Fore cabinDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Berth length
6’ 7”2 m
6’ 7”2 m
Berth width
5’ 2”1.6 m
5’ 2”1.6 m
 
Aft cabinDufour 56 Exclusive StandardDufour 56 Exclusive Shoal draft
Berth length
6’ 6”1.98 m
6’ 6”1.98 m
Berth width
6’ 5”1.95 m
6’ 5”1.95 m
 
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