BoatsIslander Yachts 40

Islander Yachts 40

Masthead Sloop · Fin keel, spade rudder · First built 1979

A Doug Peterson-designed masthead sloop built for performance with a deep fin keel and a balanced spade rudder

Designed by Doug Peterson.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/spade Rudder

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelySea-kindly

Her moderate displacement on a narrow beam gives 29 — a moderate, middle-of-the-road motion.

Comfort ratio 29
CoastalBluewater

1.84 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.84
LightHeavy

259 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 259
EasygoingPowered-up

17.8 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 17.8
TenderStiff

45% of her weight is ballast — stiff, standing up well to her sails.

Ballast 45%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Draws more than ~87% of boats her size on file

Compared with 2866 boats of the same type within a quarter of her length.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Ballast / displacement
45.3%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.8
Displacement / length
259.0
Comfort ratio
29.3
Capsize screening
1.84
Hull speed
7.4 kn
Pounds / inch immersion
1303
Hull
Hull type
Fin w/spade rudder
Construction
FG w/divinycell deck
Ballast type
Lead
Production
Years built
First built 1979
Designer
Doug Peterson
Builder
Islander Yachts, Tradewind Yachts

Boats like this, on the water

Nobody has filmed this one — but these are close.

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

C&C Yachts 3911.96 mSame hull familyNear-identical lengthA 1971-1974 production masthead sloop with a moderate displacement-to-length ratio, balanced for coastal cruising
Puma 38-K12.00 mSame hull familyNear-identical lengthA masthead ketch featuring a fin keel and spade rudder, offering a spirited sail area-to-displacement ratio
Warrior 4012.00 mSame hull familyNear-identical lengthA cutter-rigged cruiser with a skeg-hung rudder and a 1.52m draft, built for steady offshore passages
Cal Boats 4011.99 mSame hull familyNear-identical lengthA legendary offshore racer with 160 built, featuring a light displacement and a high sail-area-to-displacement ratio
Valiant Yachts 40-212.16 mSame hull familyNear-identical lengthA Robert Perry-designed cutter built for offshore passage-making, featuring a skeg-hung rudder and a stiff, heavy hull
Beneteau 4012.14 mSame hull familyNear-identical lengthA 2007 Berret-Racoupeau design with a 1.9m draft, also marketed internationally as the Oceanis 40 and Moorings 41.3

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

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