BoatsSwarbrick Brothers S&s 34

Swarbrick Brothers S&s 34

Masthead Sloop · Fin With Rudder On Skeg · First built 1968

A Sparkman & Stephens design #1959 masthead sloop, built by Swarbricks as a stiff, seaworthy cruiser with a skeg-hung rudder

Designed by Sparkman & Stephens.

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 34 — a sea-kindly motion in a seaway.

Comfort ratio 34
CoastalBluewater

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

Capsize screening 1.72
LightHeavy

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

Displacement / length 398
EasygoingPowered-up

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

Sail area / displacement 12.5
TenderStiff

42% of her weight is ballast — stiff, standing up well to her sails.

Ballast 42%

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

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
42.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
12.5
Displacement / length
397.6
Comfort ratio
34.3
Capsize screening
1.72
Hull speed
6.6 kn
Pounds / inch immersion
880
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1968
Designer
Sparkman, Stephens
Builder
Swarbrick Brothers

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 family0.3 m longerA William Crealock-designed cutter featuring a skeg-mounted rudder and an optional shallow-draft keel for versatile cruising
Endeavour 329.75 mSame hull family0.3 m shorterEndeavour's debut model, this masthead sloop evolved from the Irwin 32 hull into a stable, shoal-draft cruiser
Westerly Yachts Ltd. Discus 3310.14 mSame hull familyNear-identical lengthAn aft-cockpit evolution of the Westerly 33, featuring a masthead rig and the choice of fin or twin keels
Seidelmann Yachts 3410.36 mSame hull family0.3 m longerA 1981 masthead sloop with a 45% ballast ratio, balancing a light-displacement hull with a deep 1.65-meter fin keel
Contessa 329.75 mSame hull family0.3 m shorterA 1973 London Boat Show winner with a skeg-hung rudder and a ballast-to-displacement ratio of 47 percent
Islander 329.91 mSame hull family0.2 m shorterA J.H. McGlasson-designed masthead sloop that served as the foundational hull for the later Islander 33 and 34 models

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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