BoatsGulfstream 30 (S&S)

Gulfstream 30 (S&S)

Masthead Sloop · Fin Keel · First built 1955

A Sparkman & Stephens design from 1955, this narrow-beamed masthead sloop offers classic lines and a stiff, stable hull

Designed by Sparkman & Stephens, built by Robert Derecktor.

LOA
Beam
Draft (max)
Displacement
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 30 — a sea-kindly motion in a seaway.

Comfort ratio 30
CoastalBluewater

At 1.63 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.63
LightHeavy

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

Displacement / length 312
EasygoingPowered-up

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

Sail area / displacement 17.4

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

  • Narrower than ~90% of boats her size on file

Compared with 2569 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
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.4
Displacement / length
312.1
Comfort ratio
30.1
Capsize screening
1.63
Hull speed
6.3 kn
Pounds / inch immersion
638
Hull
Hull type
Fin Keel
Construction
Wood
Ballast type
Lead
Production
Years built
First built 1955
Designer
Sparkman, Stephens
Builder
Robert Derecktor

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.

Dufour Arpege 309.14 mSame hull familyNear-identical lengthA record-breaking production of over 1500 units, this MORC-compliant racer-cruiser defined a new standard for the 30-foot class
Islander Yachts 309.02 mSame hull family0.2 m shorterA raised-deck masthead sloop with a shallow 1.12-metre draft, produced briefly as a distinct variant of the Islander 29
Spirit 329.48 mSame hull family0.2 m longerA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Granada Yachts 319.39 mSame hull family0.2 m longerA masthead sloop with a spade rudder and nearly 46% ballast ratio, designed for stability in a 31-foot hull
Tartan Marine 309.12 mSame hull familyNear-identical lengthA Sparkman & Stephens masthead sloop offering versatile interior configurations and a choice of standard or tall rigs
Cal Boats 309.14 mSame hull familyNear-identical lengthOffered with an optional tall rig, this masthead sloop served as the predecessor to the 2-30 series

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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