Sun Fast 31
Team / Lead Keel

The Sun Fast 31 is an evolution of Sun Light 30 / 31. She uses the same hull with the large transom of 31 but features a 7/8 fractional rigging, giving her a little more speed upwind. The Sun Fast 31 is indeed the racing version Jeanneau offered a cruising version: the Sun Odyssey 31 The silhouette is very close; the coachroof is slightly modified to accommodate a long tinted window. The Harken hardware is neat and well-sized.

As the Sun Light, the Sun Fast 31 is available in 2 accommodations versions: Team or owner and with 3 types of keel: deep draft, shoal draft or lead keel.

See the Sun Fast 31's specifications on

Main Features

ModelSun Fast 31
VersionTeam / Lead Keel
Sailboat typeCruising-racing monohull
DesignerDaniel Andrieu
Building years (first/last)1990 / 1993
Number built130
PredecessorJeanneau Sun Light 30
SuccessorSun Fast 32
Regulation2eme 6/8 pers.
ConstructionFiberglass/polyester, monolithic hull, balsa sandwich deck
Appendage typeFin with bulb
Ballast typeLead
Rudder bladeSingle under hull rudder
RudderSingle tiller
Main dimensions
Length over all30.5 ft
Hull length30.0 ft
Waterline length25.3 ft
Beam over all10.6 ft
Waterline beam8.4 ft
Fore freeboard3.8 ft
Middle freeboard32.8 ft
Draft5.7 ft
Light displacement6834 lbs
Ballast2601 lbs
French customs tonnage8.12 Tx

Rig and sails

Rig typeFractional Sloop (7/8)
Rig materialMast and boom in Aluminum
Number of rows of spreader2
Spreader anglePushing
Spinnaker typeSymmetrical spinnaker
Upwind sailarea546 ft²
Downwind sailarea887 ft²
Mainsail area255 ft²
Genoa area291 ft²
Spinnaker area632 ft²

PMainsail hoist measurement (from tack to head)

36.7 ft

EMainsail foot measurement (from tack to clew)

12.1 ft

IFore triangle height (from mast foot to fore stay attachement)

36.1 ft

JFore triangle base (from mast foot to bottom of forestay)

10.5 ft

LLGenoa hoist measurement (from tack to head)

36.9 ft

LPGenoa perpendicular measurement from clew to luff.

16.0 ft

SLSymmetrical spinnaker hoist measurement (from tack to head)

35.0 ft

SMWSymmetrical spinnaker width

19.2 ft


Wetted surface209 ft²
Transverse section maximum surface11 ft²
Righting moment @ 1°92 lbs/ft
Ballast ratio38.1 %
Upwind sailarea / displacement176.0 ft²/Ton
Downwind sailarea / displacement286.1 ft²/Ton
HN (French rating)18.0

Auxiliary engine

Type1 x 2002
Engine power1 x 18 hp
Fuel capacity12.7 gal
Fuel typeDiesel
Transmission typeShaft-line
Propeller typeTwo-blade folding propeller as an option


Number of cabin2
Number of berth (max./min.)7 / 6
Number of shower room1
Fresh water capacity26.4 gal
Fridge/cooler capacity19.8 gal
Headroom max6.1 ft
Headroom kitchen6.0 ft
Headroom shower room5.8 ft
Headroom6.0 ft
Chart table dimensions3.0 x 2.0 ft
Fore cabin
Headroom5.9 ft
Length of berth6.4 ft
Width of berth*5.0 ft
Aft cabin
Headroom5.8 ft
Length of berth6.6 ft
Width of berth*4.9 ft
Cockpit length6.1 ft
Cockpit width4.9 ft
Catwalk width1.4 ft
*Maximal width : at head

Based on specification1990

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