BoatsEricson Yachts 381

Ericson Yachts 381

Masthead Sloop · Fin keel, spade rudder · 1982–1986

An evolution of the Ericson 38, this 11.4-meter masthead sloop features a 1.98-meter draft and a fin-keel hull

Designed by Bruce King.

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

See her sail

The Ericson Yachts 381, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Christian Williams

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 moderate beam gives 25 — a moderate, middle-of-the-road motion.

Comfort ratio 25
CoastalBluewater

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

Capsize screening 1.98
LightHeavy

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

Displacement / length 227
EasygoingPowered-up

18.4 — plenty of sail for her weight; lively and quick to respond.

Sail area / displacement 18.4
TenderStiff

44% of her weight is ballast — stiff, standing up well to her sails.

Ballast 44%

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

What the fleet has seen

The Ericson Yachts 381, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Ericson Yachts 381 is a 1982–1986 masthead sloop designed by Bruce King, an updated version of the Ericson 38, with an LOA of 11.4 meters, a beam of 3.7 meters, a draft of 2.0 meters, and a displacement of 6531 kg. Aboard *Christian Williams*, a 1984 Ericson 381 named *Thelonious* undergoes a four-year maintenance cycle in Southern California, including bottom paint renewal, barrier coat inspection, and replacement of the propeller shaft and cutlass bearing.1:09 The boat features four cockpit drains, two propane locker drains, and a bow thruster.3:41 The dripless shaft seal requires disconnection from the transmission coupling for servicing.2:18 Williams adjusts the lazy jacks on the mast to improve sail handling and demonstrates tacking the vessel through 140 degrees using 14 wheel pilot increments in light winds and southerly swells.6:57 A diver performs monthly hand-scrubbing to maintain the hull between four-year haul-outs.2:02 Williams, at 82, continues to sail his Ericson 381 despite a back injury, contrasting its demands with a Laser dinghy's low boom.0:07

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen 2 times across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

On the water

The Ericson Yachts 381 on video

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
43.8%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
18.4
Displacement / length
226.6
Comfort ratio
24.9
Capsize screening
1.98
Hull speed
7.4 kn
Pounds / inch immersion
1308
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
1982–1986
Units built
39
Designer
Bruce King
Builder
Ericson Yachts

Boats like this, on the water

More boats like her, on the water

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.

Ericson Yachts 3811.48 mSame hull familyNear-identical lengthA Bruce King-designed masthead sloop with a high sail area-to-displacement ratio for spirited performance
Sabre Yachts 3811.53 mSame hull familyNear-identical lengthA masthead sloop designed for performance, featuring a fin keel and spade rudder for responsive handling
Tartan Marine 37211.34 mSame hull familyNear-identical lengthA 1988-1993 masthead sloop featuring a deep 2.08-meter fin keel and a spade rudder for performance-oriented cruising
Hunter Marine 38011.35 mSame hull familyNear-identical lengthOffered with a deep 1.98m keel option, this high-volume cruiser features a spade rudder and a B&R rig
Hunter Marine 37611.35 mSame hull familyNear-identical lengthA spacious cruiser featuring a B&R rig and wing keel, sharing a proven hull design with the later 380 and 386 models
Jeanneau Sun Odyssey 3711.41 mSame hull familyNear-identical lengthA versatile charter-proven hull from 1998 that served as the foundation for multiple Jeanneau model variations

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.

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