| Main features | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Model | Dufour 30 Classic | Dufour 30 Classic |
Version | Deep draft | Shoal draft |
Hull type | Monohull | Monohull |
Category | Cruising sailboat | Cruising sailboat |
Sailboat builder | Dufour | Dufour |
Sailboat designer | ||
Country | France | France |
Construction | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich balsa fiberglass polyester | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich balsa fiberglass polyester |
Number of hulls built | 479 | 479 |
First built hull | 1996 | 1996 |
Last built hull | 2003 | 2003 |
Appendages | Keel : L-shaped keel (with bulb) | Keel : L-shaped keel (with bulb) |
Helm | Single tiller | Single tiller |
Rudder | Single spade rudder | Single spade rudder |
Unsinkable | No | No |
Trailerable | No | No |
Former French navigation category | 2 | 2 |
| Main dimensions | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Hull length | 29’ 5”8.95 m | 29’ 5”8.95 m |
Waterline length | 26’ 4”8.03 m | 26’ 4”8.03 m |
Beam (width) | 9’ 10”2.99 m | 9’ 10”2.99 m |
Draft | 4’ 11”1.48 m | 3’ 11”1.18 m |
Mast height from DWL | 41’12.5 m | 41’12.5 m |
Light displacement (MLC) | 6504 lb2950 kg | 6504 lb2950 kg |
Ballast weight | 2094 lb950 kg | 2094 lb950 kg |
Ballast type | Cast iron | Cast iron |
French customs tonnage | 7.93 Tx | 7.93 Tx |
| Rig and sails | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Upwind sail area | 436 ft²40.5 m² | 436 ft²40.5 m² |
Downwind sail area | 747 ft²69.4 m² | 747 ft²69.4 m² |
Mainsail area | 230 ft²21.4 m² | 230 ft²21.4 m² |
Genoa area | 206 ft²19.1 m² | 206 ft²19.1 m² |
Symmetric spinnaker area | 517 ft²48 m² | 517 ft²48 m² |
I iFore triangle height (from mast foot to fore stay top attachment) | 36’ 6”11.14 m | 36’ 6”11.14 m |
J iFore triangle base (from mast foot to bottom of forestay) | 11’ 7”3.55 m | 11’ 7”3.55 m |
P iMainsail hoist measurement (from tack to head) | 33’10.05 m | 33’10.05 m |
E iMainsail foot measurement (from tack to clew) | 12’ 4”3.75 m | 12’ 4”3.75 m |
Rigging type | Sloop Marconi masthead | Sloop Marconi masthead |
Mast configuration | Deck stepped mast | Deck stepped mast |
Rotating spars | No | No |
Number of levels of spreaders | 1 | 1 |
Spreaders angle | Swept-back | Swept-back |
Spars construction | Aluminum spars | Aluminum spars |
Standing rigging | 1x19 strand wire continuous | 1x19 strand wire continuous |
| Performances | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
HN (French rating) iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats. | 16.5 | 16.5 |
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. | 212 ft²/T19.69 m²/T | 212 ft²/T19.69 m²/T |
Downwind 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. | 363 ft²/T33.74 m²/T | 363 ft²/T33.74 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. | 161 | 161 |
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. | 32 % | 32 % |
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. | 6.88 knots | 6.88 knots |
| Auxiliary engine | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Engine(s) | 1 inboard engine | 1 inboard engine |
Engine(s) power (min./max.) | 10 HP / 20 HP | 10 HP / 20 HP |
Fuel type | Diesel | Diesel |
Fuel tank capacity | 21.1 gal80 liters | 21.1 gal80 liters |
| Accommodations and layout | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Cockpit | Closed aft cockpit | Closed aft cockpit |
Cabin(s) | 1 | 1 |
Berth(s) (min./max.) | 4 / 6 | 4 / 6 |
Head(s) | 1 | 1 |
Freshwater tank capacity | 44.9 gal170 liters | 44.9 gal170 liters |
Fridge/ice-box capacity | 15.9 gal60 liters | 15.9 gal60 liters |
Maximum headroom | 5’ 8”1.75 m | 5’ 8”1.75 m |
Galley headroom | 5’ 8”1.75 m | 5’ 8”1.75 m |
Head headroom | 5’ 7”1.7 m | 5’ 7”1.7 m |
| Saloon | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Maximum headroom | 5’ 8”1.75 m | 5’ 8”1.75 m |
Saloon table length | 3’ 11”1.2 m | 3’ 11”1.2 m |
Saloon table width | 2’ 4”0.7 m | 2’ 4”0.7 m |
Berth length | 6’ 7”2 m | 6’ 7”2 m |
Berth width (head/feet) | 1’ 11”0.58 m / 1’ 11”0.58 m | 1’ 11”0.58 m / 1’ 11”0.58 m |
| Fore cabin | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Maximum headroom | 2’ 5”0.74 m | 2’ 5”0.74 m |
Berth length | 5’ 5”1.65 m | 5’ 5”1.65 m |
Berth width (head/feet) | 4’ 11”1.5 m / 1’ 4”0.4 m | 4’ 11”1.5 m / 1’ 4”0.4 m |
| Aft cabin | Dufour 30 Classic Deep draft | Dufour 30 Classic Shoal draft |
Maximum headroom | 5’ 7”1.7 m | 5’ 7”1.7 m |
Berth length | 6’ 10”2.07 m | 6’ 10”2.07 m |
Berth width (head/feet) | 4’ 11”1.5 m / 3’ 5”1.03 m | 4’ 11”1.5 m / 3’ 5”1.03 m |