BoatsOffshore 34 (Anderson)

Offshore 34 (Anderson)

Masthead Sloop · Fin With Rudder On Skeg · First built 1973

An IOR 3/4 tonner designed by Ian Anderson, featuring a skeg-mounted rudder and a heavy, stable displacement

Designed by Ian L. Anderson.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin With Rudder On Skeg

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 35 — a sea-kindly motion in a seaway.

Comfort ratio 35
CoastalBluewater

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

Capsize screening 1.74
LightHeavy

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

Displacement / length 356
EasygoingPowered-up

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

Sail area / displacement 12.6
TenderStiff

42% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 42%

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

  • Heavier than ~80% of boats her size on file

Compared with 2954 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
41.7%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
12.6
Displacement / length
355.8
Comfort ratio
34.9
Capsize screening
1.74
Hull speed
7.0 kn
Pounds / inch immersion
1071
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1973
Designer
Ian L. Anderson
Builder
Offshore Yachts Ltd

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.

Pacific Seacraft 3410.39 mSame hull familyNear-identical lengthA William Crealock-designed cutter featuring a skeg-mounted rudder and an optional shallow-draft keel for versatile cruising
Westerly Yachts Ltd. Discus 3310.14 mSame hull family0.2 m shorterAn aft-cockpit evolution of the Westerly 33, featuring a masthead rig and the choice of fin or twin keels
Rival 3410.36 mSame hull familyNear-identical lengthA 1972 masthead sloop with a 39% ballast ratio, designed for offshore stability and a steady 6.68-knot hull speed
Westerly 3310.14 mSame hull family0.2 m shorterA center-cockpit masthead sloop offered with fin or bilge keels, designed for stable cruising and long-range comfort
Moody 3510.52 mSame hull family0.2 m longerA Bill Dixon-designed masthead sloop with twin keels, optimized for shoal-draft cruising and stability
Victoria Marine 3410.44 mSame hull familyNear-identical lengthA versatile cruiser available as a masthead sloop or cutter, featuring a shallow 1.47m draft and a skeg-hung rudder

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

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