Dufour 1300
Fin keel

The Dufour 1300 is an extreme Quarter Tonner; she uses the hull lines of the "Inconstant", a boat that made a huge impression during the 1973 Marseille week. A sandwich hull, very light interior layout and rather flush deck, help to keep the boat's weight low. This makes the deep keel even more efficient, along with the 40% ballast ratio. These sporty characteristics contrast with her curved bow and tumble home.

See the Dufour 1300's specifications on

Main Features

ModelDufour 1300
VersionFin keel
Sailboat typeTrailerable monohull
Regatta monohull
ClassQuarter Tonner
DesignerMichel Dufour
Building years (first/last)1974 / 1975
Number built≈60
ConstructionSandwich fiberglass/polyester
Appendage typeTrapezoidal keel
Ballast typeCast iron
Rudder bladeSingle rudder with socket
RudderSingle tiller
Main dimensions
Hull length23.8 ft
Waterline length18.0 ft
Beam over all8.7 ft
Draft4.9 ft
Light displacement2866 lbs
Ballast1257 lbs

Rig and sails

Rig typeMasthead Sloop
MastKeel stepped mast
Rig materialMast and boom in Aluminum
Standing rigging material1x19 strand wire
Number of rows of spreader1
Spreader anglePushing
Spinnaker typeSymmetrical spinnaker
Upwind sailarea316 ft²
Downwind sailarea620 ft²
Mainsail area104 ft²
Genoa area212 ft²
Working jib area168 ft²
Jib area125 ft²
Spinnaker area516 ft²

PMainsail hoist measurement (from tack to head)

24.8 ft

EMainsail foot measurement (from tack to clew)

7.6 ft

LLGenoa hoist measurement (from tack to head)

30.0 ft

LPGenoa perpendicular measurement from clew to luff.

15.4 ft

SLSymmetrical spinnaker hoist measurement (from tack to head)

29.5 ft

SMWSymmetrical spinnaker width

18.4 ft


Ballast ratio43.8 %
Upwind sailarea / displacement242.9 ft²/Ton
Downwind sailarea / displacement476.7 ft²/Ton
HN (French rating)12.0
IOR rating18.0 ft

Auxiliary engine

Power max (optional)8 hp
Fuel typeGas
Transmission typeOutboard


Number of berth2
Headroom max4.3 ft

Based on specification1974

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