BoatsHerreshoff Manufacturing Co. S-Class

Herreshoff Manufacturing Co. S-Class

Fractional Sloop · Fin Keel · 1919–1941

A durable one-design racer with over 70 hulls still active, built for the Seawanhaka Corinthian YC from 1919 to 1941

Designed by N. Herreshoff & Nathanael G. Herreshoff.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin 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 33 — a sea-kindly motion in a seaway.

Comfort ratio 33
CoastalBluewater

At 1.52 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.52
LightHeavy

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

Displacement / length 350
EasygoingPowered-up

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

Sail area / displacement 19.4
TenderStiff

50% of her weight is ballast — stiff, standing up well to her sails.

Ballast 50%

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

  • Narrower than ~96% of boats her size on file

Compared with 2026 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
49.6%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
19.4
Displacement / length
349.8
Comfort ratio
33.5
Capsize screening
1.52
Hull speed
6.1 kn
Pounds / inch immersion
525
Hull
Hull type
Fin Keel
Construction
Wood
Ballast type
Lead
Production
Years built
1919–1941
Units built
95
Designer
N. Herreshoff, Nathanael G. Herreshoff
Builder
Herreshoff Manufacturing Co

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.

Catalina Yachts 278.18 mSame hull family0.2 m shorterA masthead sloop with 6,662 hulls produced over two decades, serving as a staple of coastal cruising since 1971
Ericson Yachts 298.71 mSame hull family0.3 m longerA 1970s masthead sloop with a 1.32-meter draft and a 45% ballast ratio, balancing coastal stability with shoal access
Cascade Yachts 278.23 mSame hull family0.2 m shorterA masthead sloop with a fin keel and spade rudder, designed by Robert A. Smith for balanced coastal cruising
Shannon Yachts 288.53 mSame hull familyNear-identical lengthA fin-keeled cutter with a transom-hung rudder, built for coastal cruising with a stiff 38% ballast ratio
Ranger Yachts 29 (Mull)8.71 mSame hull family0.3 m longerA 1970s masthead sloop with a skeg-hung rudder, offering a balanced 1.98 capsize screening for coastal cruising
Islander Yachts 288.51 mSame hull familyNear-identical lengthA Robert Perry-designed masthead sloop with over 400 built, favored by the designer himself for her balanced performance

The family

Boats like this

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

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

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