BoatsS&s 24

S&s 24

Masthead Sloop · Fin Keel · 1968–1973

A Sparkman & Stephens keel-version of the Dolphin 24, this masthead sloop offers a stable, classic design from 1968

Designed by Sparkman & Stephens, built by Sea Nymph.

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 moderate beam gives 23 — a moderate, middle-of-the-road motion.

Comfort ratio 23
CoastalBluewater

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

Capsize screening 1.84
LightHeavy

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

Displacement / length 302
EasygoingPowered-up

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

Sail area / displacement 18.6
TenderStiff

36% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 36%

Powered-up and quick to accelerate — this one likes to sail.

  • Narrower than ~84% of boats her size on file

Compared with 1397 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
36.2%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
18.6
Displacement / length
302.0
Comfort ratio
23.1
Capsize screening
1.84
Hull speed
5.8 kn
Pounds / inch immersion
521
Hull
Hull type
Fin Keel
Construction
Fiberglass
Production
Years built
1968–1973
Units built
20
Designer
Sparkman, Stephens
Builder
Sea Nymph

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.

Puma 268.00 mSame hull family0.6 m longerA masthead sloop derived from an IOR Half Ton prototype, designed by Holman and Pye for competitive performance
Puma 277.95 mSame hull family0.6 m longerA Ron Holland-designed masthead sloop with a fin keel and spade rudder, built for performance-oriented coastal cruising
Jeanneau Sun Odyssey 267.47 mSame hull familyNear-identical lengthA Philippe Briand-designed fractional sloop built for coastal cruising with a stiff, stable hull form
Cal 257.62 mSame hull family0.3 m longerA flush-deck masthead sloop featuring a pop-top companionway that became one of the most popular models in the fleet
Martinique 257.70 mSame hull family0.3 m longerA Brazilian-built masthead sloop with a 44% ballast ratio, offering a stiff and stable platform for coastal cruising
Comet 7707.70 mSame hull family0.3 m longerA Jean-Marie Finot-designed IOR quarter-tonner with a high sail-area-to-displacement ratio for spirited club racing

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

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

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