BoatsArietta 31

Arietta 31

Masthead Sloop · Long Keel · 1964–1978

An Olle Enderlein-designed masthead sloop with a long keel, built by Malo Yachts for offshore stability

Designed by Olle Enderlein, built by Borgs Plast AB.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Long 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 narrow beam gives 26 — a moderate, middle-of-the-road motion.

Comfort ratio 26
CoastalBluewater

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

Capsize screening 1.81
LightHeavy

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

Displacement / length 315
EasygoingPowered-up

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

Sail area / displacement 18.0
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.

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
18.0
Displacement / length
315.1
Comfort ratio
25.7
Capsize screening
1.81
Hull speed
6.3 kn
Pounds / inch immersion
696
Hull
Hull type
Long Keel
Construction
Wood
Production
Years built
1964–1978
Units built
250
Designer
Olle Enderlein
Builder
Borgs plast AB, Malo Yachts, Comfortbatar AB

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.

Pearson Yachts-USA Triton8.63 mSame hull family0.8 m shorterA Carl Alberg-designed long-keel fractional sloop that pioneered fiberglass cruising and saw international production.
Vindo 328.95 mSame hull family0.5 m shorterA classic Carl Andersson-designed masthead sloop featuring a long keel and traditional build for stable, comfortable cruising
Bayfield 30/329.75 mSame hull family0.4 m longerA rare 32C variant featuring a tall rig, built in a limited run of five hulls for increased sail area
Alberg 309.22 mSame hull family0.2 m shorterA 25-year production classic with a heavy displacement-to-length ratio that remains a capable choice for offshore passages
Cape Dory 30C9.21 mSame hull family0.2 m shorterA cutter-rigged cruiser with a full keel and a 1.27-metre draft, built for steady performance between 1976 and 1987
Pacific Seacraft Orion 279.42 mSame hull familyNear-identical lengthA heavy-displacement cutter designed by Henry Mohrschladt for offshore stability and traditional long-keel handling

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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