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Sailboat specifications and datasheets

Dufour 390 Grand Large shoal draft

The Dufour 390 Grand Large, here in "shoal draft" version, is a 36’8” monohull sailboat designed by Umberto Felci. She was built by Dufour (France) and made of single skin fiberglass / polyester. The production started in 2018 .

The Dufour 390 Grand Large belongs to the Grand Large range. The Dufour 390 Grand Large is as well listed, on Boat-Specs.com, in version Standard.

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

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Dufour 390 Grand Large's   Main Features
Model Dufour 390 Grand Large
Version Shoal draft
Type of hull Monohull
Category Cruising sailboat
Shipyard
Designer Umberto Felci
Range Grand Large
Construction Hull:
single skin fiberglass / polyester
Deck:
sandwich fiberglass / polyester
First built hull 2018
Last built hull Still in production
Appendages Keel :
L-shaped keel (with bulb)
Helm 2 wheels
Rudder 1 spade rudder
Cockpit Closing aft cockpit with opening system
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only)
N/A
Dufour 390 Grand Large's   Main dimensions
Length overall 39’ 2”
Hull length 36’ 8”
Waterline length 34’ 5”
Beam (width) 13’ 1”
Draft 5’ 8”
Light displacement 16976 lbs
Ballast weight 4630 lbs
Ballast type Cast iron
Dufour 390 Grand Large's   Rig and sails
Upwind sail area 716 sq.ft
Mainsail area 394 sq.ft
Genoa area 322 sq.ft
Rigging type Sloop Marconi 7/8
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum (carbon fiber as an option)
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 2
Spreaders angle Swept-back
Dufour 390 Grand Large'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.
17.05
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.
188
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.
27 %
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.
7.86 knots
Dufour 390 Grand Large's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 30 HP / 40 HP
Fuel type Diesel
Fuel tank capacity 52.8 gal
Dufour 390 Grand Large's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Head(s) (min/max) 2 / 3
Fresh water tank capacity 100.4 gal
Water heater capacity 10.6 gal

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