BoatsIslander 55

Islander 55

Masthead Sloop · Keel/centreboard · First built 1968

A rare Bruce King-designed masthead sloop with a deep-draft keel and centreboard, later produced as the Tradewinds 55

Designed by Bruce King, built by Wayfarer Yacht Corp.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Keel/Cbrd.

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 narrow beam gives 42 — a heavy, notably soft motion offshore.

Comfort ratio 42
CoastalBluewater

At 1.67 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.67
LightHeavy

364 — very heavy for her waterline, a serious load-carrying cruiser.

Displacement / length 364
EasygoingPowered-up

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

Sail area / displacement 16.8
TenderStiff

16% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 16%

Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.

  • Draws more than ~79% of boats her size on file

Compared with 152 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
15.8%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
16.8
Displacement / length
363.6
Comfort ratio
42.0
Capsize screening
1.67
Hull speed
8.0 kn
Pounds / inch immersion
1801
Hull
Hull type
Keel/Cbrd.
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 1968
Designer
Bruce King
Builder
Wayfarer Yacht Corp, Tradewinds Yachts, 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.

Bristol Yachts 45.513.79 mSame hull family2.9 m shorterA heavy-displacement masthead sloop with a 3.35-metre keel-centerboard draft, built for deep-water cruising performance
Alden Yachts 5416.48 mSame hull family0.2 m shorterAn extended-stern evolution of the 50-foot series, available in both center and aft cockpit layouts as well as cutter or ketch
Brewer 4413.41 mSame hull family3.3 m shorterA stretched evolution of the 12.8 featuring a reverse transom and a versatile keel-centerboard configuration
Bristol Yachts 41.112.54 mSame hull family4.1 m shorterA masthead sloop with a deep 3.05-metre keel-centreboard draft, bridging the gap between the 411 and 43.3 models
Morgan Yachts Out Island 5115.70 mSame hull family1.0 m shorterA heavy-displacement staysail ketch with a keel-centerboard configuration designed for comfortable long-range cruising
Irwin Yachts 5416.46 mSame hull family0.2 m shorterA 16.46-metre staysail ketch with a 39.9 comfort ratio, built since 1988 for stable, long-range cruising

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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