Idylle 11.50
Fin keel

The Idylle 11.50 is the first sailboat in the Idylle range from Bénéteau which proposes to open a "third way". The positioning is indeed quite unique because this sailboat is between a cruising-racing monohull and a motorsailer. The hull by Jean Berret is very close to that of the First 35, it guarantees good performance even if the keel loses aspect ratio. The powerful diesel takes over as soon as the wind drops.

Inside, instead of multiplying the cabins the shipyard choses the comfort for a small crew with two nice double cabins at the front and back with real clearance and storage space. The headroom is everywhere good, the Idylle 11.50 not giving in fashion of sloped coach-roof.

See the Idylle 11.50's specifications on

Main Features

ModelIdylle 11.50
VersionFin keel
Sailboat typeCruising monohull
DesignerJean Berret
Building years (first/last)1983 / 1988
PredecessorEvasion 37
SuccessorOcéanis 390
ConstructionFiberglass/polyester, monolithic hull, balsa sandwich deck
Appendage typeTrapezoidal keel
Ballast typeCast iron
Rudder bladeSingle rudder with socket
RudderSingle helm wheel
Main dimensions
Length over all37.7 ft
Hull length36.4 ft
Waterline length28.9 ft
Beam over all12.1 ft
Draft4.4 ft
Light displacement11464 lbs
Ballast5512 lbs

Rig and sails

Rig typeMasthead Sloop
MastDeck stepped mast
Rig materialMast and boom in Aluminum
Standing rigging material1x19 strand wire
Number of rows of spreader2
Spreader angleNeutral (0°)
Spinnaker typeSymmetrical spinnaker
Upwind sailarea750 ft²
Downwind sailarea1299 ft²
Mainsail area287 ft²
Genoa area463 ft²
Working jib area301 ft²
Stormsail area75 ft²
Spinnaker area1012 ft²

PMainsail hoist measurement (from tack to head)

35.8 ft

EMainsail foot measurement (from tack to clew)

11.5 ft

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

41.7 ft

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

12.0 ft

LLGenoa hoist measurement (from tack to head)

42.3 ft

LPGenoa perpendicular measurement from clew to luff.

18.0 ft

SLSymmetrical spinnaker hoist measurement (from tack to head)

41.1 ft

SMWSymmetrical spinnaker width

21.4 ft


Ballast ratio48.1 %
Upwind sailarea / displacement144.2 ft²/Ton
Downwind sailarea / displacement249.8 ft²/Ton
HN (French rating)15.0

Auxiliary engine

Type1 x 4-108
Engine power1 x 50 hp
Fuel capacity21.1 gal
Fuel typeDiesel
Transmission typeShaft-line
Propeller typeThree-blade propeller


Number of cabin2
Number of berth7
Number of shower room1
Fresh water capacity105.7 gal
Fridge/cooler capacity23.8 gal
Headroom max6.5 ft
Headroom shower room6.1 ft
Headroom6.3 ft
Table dimensions3.5 x 3.1 ft
Fore cabin
Headroom6.1 ft
Aft cabin
Headroom6.1 ft

Based on specification1983

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