BoatsJ/34 C

J/34 C

Masthead Sloop · Wing Keel · 1986–1990

A Rodney Johnstone design featuring a unique hybrid wing-bulb keel for performance in shallow water

Designed by Rodney S. Johnstone & Rod Johnstone, built by J Boats Tillotson Pearson.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Wing 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 moderate displacement on a moderate beam gives 24 — a moderate, middle-of-the-road motion.

Comfort ratio 24
CoastalBluewater

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

Capsize screening 1.94
LightHeavy

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

Displacement / length 198
EasygoingPowered-up

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

Sail area / displacement 18.8
TenderStiff

38% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 38%

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

  • Draws less than ~78% of boats her size on file

Compared with 2977 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
37.5%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
18.8
Displacement / length
198.4
Comfort ratio
24.0
Capsize screening
1.94
Hull speed
7.3 kn
Pounds / inch immersion
1190
Hull
Hull type
Wing Keel
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1986–1990
Units built
36
Designer
Rodney S. Johnstone, Rod Johnstone
Builder
J Boats Tillotson Pearson

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.

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
Beneteau Oceanis 35110.62 mSame hull familyNear-identical lengthA shallow-draft masthead sloop with a 1.22-metre keel, designed for accessible cruising and coastal exploration
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
Bavaria Yachts Match 3510.52 mSame hull familyNear-identical lengthA World Match Racing Tour veteran featuring a high 26.21 sail area-to-displacement ratio for competitive speed
Com-Pac Yachts 3310.59 mSame hull familyNear-identical lengthA shoal-draft masthead sloop designed by Charles Morgan Jr., featuring a stiff hull and a high ballast ratio for stable cruising
Moody 34610.52 mSame hull familyNear-identical lengthA 10.5-metre masthead sloop with a 40% ballast ratio, offering a stable and comfortable platform for coastal cruising

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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