| Main features | Dufour 390 Grand Large Standard | Dufour 390 Grand Large Shoal draft |
Model | Dufour 390 Grand Large | Dufour 390 Grand Large |
Version | Standard | Shoal draft |
Hull type | Monohull | Monohull |
Category | Cruising sailboat | Cruising sailboat |
Sailboat builder | Dufour | Dufour |
Sailboat designer | ||
Sailboat range | ||
Country | France | France |
Construction | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich fiberglass polyester | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich fiberglass polyester |
First built hull | 2018 | 2018 |
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) | 177631 2020 | 177631 2020 |
| Main dimensions | Dufour 390 Grand Large Standard | Dufour 390 Grand Large Shoal draft |
Overall length | 39’ 2”11.94 m | 39’ 2”11.94 m |
Hull length | 36’ 8”11.19 m | 36’ 8”11.19 m |
Waterline length | 34’ 5”10.5 m | 34’ 5”10.5 m |
Beam (width) | 13’ 1”3.99 m | 13’ 1”3.99 m |
Draft | 6’ 5”1.95 m | 5’ 8”1.75 m |
Light displacement (MLC) | 16976 lb7700 kg | 16976 lb7700 kg |
Ballast weight | 4630 lb2100 kg | 4630 lb2100 kg |
Ballast type | Cast iron | Cast iron |
| Rig and sails | Dufour 390 Grand Large Standard | Dufour 390 Grand Large Shoal draft |
Upwind sail area | 716 ft²66.5 m² | 716 ft²66.5 m² |
Mainsail area | 394 ft²36.6 m² | 394 ft²36.6 m² |
Genoa area | 322 ft²29.9 m² | 322 ft²29.9 m² |
Rigging type | Sloop Marconi 7/8 | Sloop Marconi 7/8 |
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 (carbon fiber spars as an option) | Aluminum spars (carbon fiber spars as an option) |
Standing rigging | 1x19 strand wire continuous | 1x19 strand wire continuous |
| Performances | Dufour 390 Grand Large Standard | Dufour 390 Grand Large 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. | 184 ft²/T17.05 m²/T | 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. | 188 | 188 |
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 % | 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 | 7.86 knots |
| Auxiliary engine | Dufour 390 Grand Large Standard | Dufour 390 Grand Large Shoal draft |
Engine(s) | 1 inboard engine | 1 inboard engine |
Engine(s) power (min./max.) | 30 HP / 40 HP | 30 HP / 40 HP |
Fuel type | Diesel | Diesel |
Fuel tank capacity | 52.8 gal200 liters | 52.8 gal200 liters |
| Accommodations and layout | Dufour 390 Grand Large Standard | Dufour 390 Grand Large Shoal draft |
Cockpit | Closing aft cockpit with opening system | Closing aft cockpit with opening system |
Cabin(s) (min./max.) | 2 / 3 | 2 / 3 |
Berth(s) (min./max.) | 4 / 8 | 4 / 8 |
Head(s) (min./max.) | 2 / 3 | 2 / 3 |
Freshwater tank capacity | 100.4 gal380 liters | 100.4 gal380 liters |
Boiler capacity | 10.6 gal40 liters | 10.6 gal40 liters |