BoatsOyster Marine 43

Oyster Marine 43

Fractional Sloop · Fin keel, spade rudder · 1983–1986

A fractional sloop with a high sail-area-to-displacement ratio, optimized for performance in the IOR 1-ton class

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 21 — a moderate, middle-of-the-road motion.

Comfort ratio 21
CoastalBluewater

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

Capsize screening 2.21
LightHeavy

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

Displacement / length 189
EasygoingPowered-up

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

Sail area / displacement 19.7

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

  • Draws more than ~85% of boats her size on file
  • Beamier than ~86% of boats her size on file

Compared with 2542 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
19.7
Displacement / length
188.6
Comfort ratio
20.6
Capsize screening
2.21
Hull speed
7.8 kn
Pounds / inch immersion
1711
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1983–1986
Designer
Stephen Jones
Builder
Oyster Marine Ltd

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 42 CC13.23 mSame hull familyNear-identical lengthA cutter-rigged cruiser produced from 2003 to 2007, widely utilised in the charter trade for its accessible layout
Beneteau Oceanis 42 CC13.23 mSame hull familyNear-identical lengthA center-cockpit cutter designed by Groupe Finot, featuring a wing keel for shoal draft and a stable, comfortable motion
J J/4013.21 mSame hull familyNear-identical lengthA 2024 Alan Johnstone fractional sloop featuring a high-performance fin keel and spade rudder configuration
Spirit Yachts 44 CR (E)13.40 mSame hull family0.2 m longerA 13.4-metre electric-drive cruiser featuring a high 23.9 sail-area-to-displacement ratio for spirited performance
Ct-44 (Pilot House)13.16 mSame hull familyNear-identical lengthA Tanton-designed pilot house cutter featuring a fin keel and skeg-mounted rudder for offshore stability
Sweden Yachts 4213.25 mSame hull familyNear-identical lengthA 13.25-metre fractional sloop featuring a 2.1-metre bulb keel and a 40% ballast ratio for balanced offshore 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

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