BoatsOyster Marine Sj-35

Oyster Marine Sj-35

Fractional Sloop · Fin keel, spade rudder · 1982–1985

An IOR 3/4 racer featuring an updated elliptical keel and a high sail-area-to-displacement ratio for competitive speed

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 moderate displacement on a moderate beam gives 18 — a quick, lively motion that feels every wave.

Comfort ratio 18
CoastalBluewater

2.23 — right around the 2.0 line, the edge between coastal and offshore.

Capsize screening 2.23
LightHeavy

190 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 190
EasygoingPowered-up

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

Sail area / displacement 21.6

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

  • Draws more than ~84% of boats her size on file

Compared with 2964 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
Fractional Sloop
Ratios
SA / displacement
21.6
Displacement / length
189.7
Comfort ratio
17.6
Capsize screening
2.23
Hull speed
7.0 kn
Pounds / inch immersion
1112
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
1982–1985
Units built
27
Designer
Stephen Jones
Builder
Oyster Marine, Windboats Marine Ltd, Landamores Yacht Builders

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.

Beneteau First 3510.72 mSame hull familyNear-identical lengthAn IOR 3/4 ton racer with a masthead rig, built for offshore speed and later marketed in the US as the R/C 35
X-Yachts X-3510.61 mSame hull familyNear-identical lengthA 10.6-metre racer with a 25.18 sail area-to-displacement ratio, built for high-speed, competitive one-design sailing
Tartan Marine 34-210.49 mSame hull familyNear-identical lengthA Sparkman & Stephens masthead sloop featuring an extended stern and refined interior based on the Tartan 33R
X-362 Sport10.70 mSame hull familyNear-identical lengthA performance-oriented fractional sloop with a 2.03-metre draft and a high 21.06 sail area-to-displacement ratio
J Boats Tillotson Pearson J/10910.74 mSame hull family0.2 m longerA 10.74-metre fractional sloop offering a shoal draft keel option and powered by a reliable Volvo D1-30 diesel engine
Catalina Yachts 3410.52 mSame hull familyNear-identical lengthA high-volume production cruiser with 1,438 hulls built, featuring a fin keel and spade rudder for coastal 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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