BoatsIslander 33

Islander 33

Masthead Sloop · Fin Keel · 1964–1971

A raised-deck masthead sloop with a 1.37-metre draft, built between 1964 and 1971 for coastal cruising

Designed by J. H. McGlasson & Joseph McGlasson, built by Wayfarer Yacht Corp.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin Keel

Is it for you?

Character

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

LivelySea-kindly

Her heavy displacement on a moderate beam gives 27 — a moderate, middle-of-the-road motion.

Comfort ratio 27
CoastalBluewater

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

Capsize screening 1.89
LightHeavy

323 — heavy for her waterline, built to carry stores and ride steadily.

Displacement / length 323
EasygoingPowered-up

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

Sail area / displacement 15.5
TenderStiff

33% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 33%

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

  • Draws less than ~84% of boats her size on file

Compared with 2853 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
33.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
15.5
Displacement / length
322.9
Comfort ratio
26.5
Capsize screening
1.89
Hull speed
6.6 kn
Pounds / inch immersion
871
Hull
Hull type
Fin Keel
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1964–1971
Designer
J. H. McGlasson, Joseph McGlasson
Builder
Wayfarer Yacht Corp, Islander, 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.

Beneteau Oceanis 319.66 mSame hull family0.3 m shorterA Finot-Conq designed fractional sloop balancing a modern hull form with a stable 1.8-meter bulb keel
Contessa 329.75 mSame hull family0.2 m shorterA 1973 London Boat Show winner with a skeg-hung rudder and a ballast-to-displacement ratio of 47 per cent
Endeavour 329.75 mSame hull family0.2 m shorterEndeavour's debut model, this masthead sloop evolved from the Irwin 32 hull into a stable, shoal-draft cruiser
Islander 329.91 mSame hull familyNear-identical lengthA J.H. McGlasson-designed masthead sloop that served as the foundational hull for the later Islander 33 and 34 models
Cal Boats 3410.13 mSame hull family0.2 m longerA masthead sloop with a fin keel and spade rudder, favoured by Jensen Marine founder Jack Jensen for personal cruising
Hunter Marine 339.96 mSame hull familyNear-identical lengthA 1977 masthead sloop with a 38% ballast ratio, designed for stability and coastal performance

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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