BoatsOyster Sj-27

Oyster Sj-27

Masthead Sloop · Fin keel, spade rudder · First built 1981

A masthead-rigged IOR quarter tonner with a fin keel and spade rudder designed for competitive racing

Designed by Stephen Jones.

LOA
Beam
Draft (max)
Displacement
Hull type
Fin w/spade Rudder

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelySea-kindly

Her light displacement on a beamy beam gives 12 — a quick, lively motion that feels every wave.

Comfort ratio 12
CoastalBluewater

At 2.45 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.45
LightHeavy

123 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 123

Light and lively — happiest day-sailing and coastal-hopping in settled weather.

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
Displacement / length
122.5
Comfort ratio
12.5
Capsize screening
2.45
Hull speed
6.8 kn
Pounds / inch immersion
930
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
First built 1981
Designer
Stephen Jones
Builder
Oyster, Landamores Yacht Builders

Boats like this, on the water

Nobody has filmed this one — but these are close.

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International 8068.06 mSame hull familyNear-identical lengthA Pelle Petterson-designed fractional sloop with a skeg-hung rudder, built for performance since 1974
Extreme conditions during the Oslofjord Race7:33from SEILmagasinet
Pogo 8.508.50 mSame hull family0.3 m longerA high-performance fractional sloop by Pierre Rolland featuring a wide beam and dual rudders for rapid offshore sailing
CYCLONE ALERT - will we lose EVERYTHING? | Ep.5329:26from Sailing NV
J Boats Tillotson Pearson J/808.00 mSame hull family0.2 m shorterA 1992 fractional sloop with a high 26.59 sail area-to-displacement ratio, engineered for rapid, agile performance
129. Fran Palacio. Sardinia Cup 2026.2:53from A Son de Mar
Albin Marine AB Vega 278.25 mSame hull familyNear-identical lengthScandinavia's most popular production yacht of her size, this 8.25-metre masthead sloop defined coastal cruising from 1965 to 1979
3 Tiny Sailboats You Could Actually Live On0:46from Lady K Sailing
Abbott Boats Inc. Soling8.15 mSame hull familyNear-identical lengthA high-performance Olympic class keelboat designed by Jan Herman Linge for tactical three-person racing
Kristian Nergaard used the Hankø Regatta as a warm-up for the 5.5m World Championship0:02from SEILmagasinet
Maxi Yachts Fenix 8.58.50 mSame hull family0.3 m longerA 1980s cruiser with a 1.5-metre bulb keel and spade rudder, designed for a balanced, stable coastal experience
Tone 2.0: Sailing towards the roots in the north for a new start | Bearing on Sailing8:37from SEILmagasinet

The family

Boats like this

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

Oyster Marine Sj-35An IOR 3/4 racer featuring an updated elliptical keel and a high sail-area-to-displacement ratio for competitive speedOyster SJ35Originally launched as the Hustler 35, this fractional sloop offers a high sail-area-to-displacement ratio for speedHustler SJ-27A Stephen Jones-designed IOR quarter tonner with a high sail area-to-displacement ratio built for competitive racing

Keep looking

Nothing filmed of this one yet

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

Search the fleet for boats like thisAsk the fleet about the Oyster Sj-27

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