BoatsS&s 34

S&s 34

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

A Sparkman & Stephens design #1959 masthead sloop, built globally in multiple configurations and hull variants

Designed by Sparkman & Stephens, built by Winfield.

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

See her sail

The S&s 34, on the water

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

Footage from Untide

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 24 — a moderate, middle-of-the-road motion.

Comfort ratio 24
CoastalBluewater

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

Capsize screening 1.93
LightHeavy

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

Displacement / length 291
EasygoingPowered-up

16.6 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 16.6
TenderStiff

59% of her weight is ballast — very stiff, carrying full sail in a blow.

Ballast 59%

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

What the fleet has seen

The S&s 34, as the fleet has seen it

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

The S&s 34 is a 10.2-meter masthead sloop designed by Sparkman & Stephens, with a fin keel and rudder on skeg, built from 1968 to the present. The design, Sparkman & Stephens #1959, was produced by multiple yards globally, including Aquafibre in the UK and Swarbrick Brothers in Australia, resulting in variants like the Palmer Johnson 34 in the US. The Aquafibre version features a slightly raised doghouse, while the Australian version has an uninterrupted cabin trunk. The S&s 34 has been noted as a capable and affordable vessel for long-distance sailing, with some examples available for $15,000 to $20,000.7:50 While some Sparkman & Stephens designs from the International Offshore Rule (IOR) era prioritized racing handicaps over cruising seaworthiness, the S&s 34 is considered a proven design capable of circumnavigation.

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Basemap © Wikimedia Commons · CC BY-SA 4.0

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
58.7%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
16.6
Displacement / length
290.7
Comfort ratio
24.3
Capsize screening
1.93
Hull speed
6.6 kn
Pounds / inch immersion
871
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1968
Designer
Sparkman, Stephens
Builder
Winfield, Partners, Aquafibre

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.

King's Cruiser 3310.26 mSame hull familyNear-identical lengthA Pelle Pettersson-designed masthead sloop featuring a fin keel and skeg-hung rudder for stable, classic cruising
Cal Boats 3410.13 mSame hull familyNear-identical lengthA masthead sloop with a fin keel and spade rudder, favoured by Jensen Marine founder Jack Jensen for personal cruising
Seidelmann Yachts 3410.36 mSame hull familyNear-identical lengthA 1981 masthead sloop with a 45% ballast ratio, balancing a light-displacement hull with a deep 1.65-metre fin keel
Mirage 3310.21 mSame hull familyNear-identical lengthA Robert Perry-designed masthead sloop offering a balanced, performance-oriented cruiser profile in a 33-foot hull
Dehler Yachts 3410.10 mSame hull familyNear-identical lengthAn IOR 3/4 ton racer-cruiser designed by Van de Stadt, offering a balanced performance pedigree in a comfortable hull
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

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

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The fleet has more to say

Search what's been said about the S&s 34, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

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