BoatsEricson Yachts 31 Independence

Ericson Yachts 31 Independence

Masthead Sloop · Fin w/transom Hung Rudder · 1977–1981

A Bruce King-designed masthead sloop, also marketed as the Liberty 31, featuring a fin keel and optional cutter rig

Designed by Bruce King.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/transom Hung 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 heavy displacement on a moderate beam gives 30 — a moderate, middle-of-the-road motion.

Comfort ratio 30
CoastalBluewater

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

Capsize screening 1.86
LightHeavy

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

Displacement / length 372
EasygoingPowered-up

14.5 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 14.5
TenderStiff

39% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 39%

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

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
39.5%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
14.5
Displacement / length
371.9
Comfort ratio
29.9
Capsize screening
1.86
Hull speed
6.5 kn
Pounds / inch immersion
891
Hull
Hull type
Fin w/transom hung rudder
Construction
Fiberglass
Production
Years built
1977–1981
Units built
70
Designer
Bruce King
Builder
Ericson 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.

Endeavour 329.75 mSame hull family0.3 m longerEndeavour's debut model, this masthead sloop evolved from the Irwin 32 hull into a stable, shoal-draft cruiser
Spirit 329.48 mSame hull familyNear-identical lengthA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Dufour Yachts 319.40 mSame hull familyNear-identical lengthA 1973 masthead sloop featuring a skeg-mounted rudder and a comfortable, stable design for coastal cruising
Catalina Yachts 309.12 mSame hull family0.3 m shorterOne of the most successful production yachts in history, with over 6,000 hulls built during a 32-year run
Contessa 329.75 mSame hull family0.3 m longerA 1973 London Boat Show winner with a skeg-hung rudder and a ballast-to-displacement ratio of 47 percent
Cal Boats 309.14 mSame hull family0.3 m shorterOffered with an optional tall rig, this masthead sloop served as the predecessor to the 2-30 series

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

Keep looking

Nothing filmed of this one yet

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