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.

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.

Islander 329.91 mSame hull family0.3 m shorterA J.H. McGlasson-designed masthead sloop that served as the foundational hull for the later Islander 33 and 34 models
Cal Boats 3410.13 mSame hull familyNear-identical lengthA masthead sloop with a fin keel and spade rudder, favored 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-meter 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
Hunter Marine 339.96 mSame hull family0.3 m shorterA 1977 masthead sloop with a 38% ballast ratio, designed for stability and coastal performance
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

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 asking

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.

The newsletter

New boats, new stories, from everywhere.

One email from the fleet — boats newly added, videos newly analyzed. No noise.

Report an issue