Detailed sailboat specifications and datasheets since 2015
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Dufour 390 Grand Large Shoal draft

Sailboat specifications

The Dufour 390 Grand Large is a 36’8” (11.19m) cruising sailboat designed by Felci Yachts (Italy). She is built since 2018 by Dufour (France). The Shoal draft version features a shorter keel to grant access to shallow areas.

The Dufour 390 Grand Large is as well listed, on, in Standard version (see all the versions compared).

Find out more about the Dufour 390 Grand Large on Boat-Spec's blog: European Yacht of the Year 2019 nominated sailboats.

Dufour 390 Grand Large's main features

Dufour 390 Grand Large
Shoal draft
Hull type
Cruising sailboat
Sailboat builder
Sailboat designer
Sailboat range
GRP (glass reinforced polyester):
- Hull: Single skin fiberglass polyester
- Deck: Sandwich fiberglass polyester
First built hull
Last built hull
Still in production
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)
148 000

Dufour 390 Grand Large's main dimensions

Overall length
39’ 2”11.94 m
Hull length
36’ 8”11.19 m
Waterline length
34’ 5”10.5 m
Beam (width)
13’ 1”3.99 m
5’ 8”1.75 m
Light displacement (MLC)
16976 lb7700 kg
Ballast weight
4630 lb2100 kg
Ballast type
Cast iron

Dufour 390 Grand Large's rig and sails

Upwind sail area
716 ft²66.5 m²
Mainsail area
394 ft²36.6 m²
Genoa area
322 ft²29.9 m²
Rigging type
Sloop Marconi 7/8
Mast configuration
Deck stepped mast
Rotating spars
Number of levels of spreaders
Spreaders angle
Spars construction
Aluminum spars (carbon fiber spars as an option)
Standing rigging
1x19 strand wire continuous

Dufour 390 Grand Large'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.
184 ft²/T17.05 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.
27 %
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.
7.86 knots

Dufour 390 Grand Large's auxiliary engine

1 inboard engine
Engine(s) power (min./max.)
30 HP / 40 HP
Fuel type
Fuel tank capacity
52.8 gal200 liters

Dufour 390 Grand Large's accommodations and layout

Closing aft cockpit with opening system
Cabin(s) (min./max.)
2 / 3
Berth(s) (min./max.)
4 / 8
Head(s) (min./max.)
2 / 3
Freshwater tank capacity
100.4 gal380 liters
Boiler capacity
10.6 gal40 liters
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