BoatsJeanneau Sun Fast 1/2 Ton

Jeanneau Sun Fast 1/2 Ton

Fractional Sloop · Fin keel, spade rudder · 1984–1986

A limited-edition Tony Castro-designed IOR half-ton racer that served as the prototype for later Jeanneau production models

Designed by Tony Castro.

LOA
Beam
Draft (max)
Displacement
Ballast
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 19 — a quick, lively motion that feels every wave.

Comfort ratio 19
CoastalBluewater

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

Capsize screening 2.12
LightHeavy

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

Displacement / length 218
EasygoingPowered-up

23.9 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 23.9
TenderStiff

33% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 33%

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

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Ballast / displacement
33.3%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
23.9
Displacement / length
217.9
Comfort ratio
19.4
Capsize screening
2.12
Hull speed
6.7 kn
Pounds / inch immersion
900
Hull
Hull type
Fin w/spade rudder
Construction
FG w/carbon & kev.
Ballast type
Lead
Production
Years built
1984–1986
Units built
10
Designer
Tony Castro
Builder
Jeanneau

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.

C&C Yachts 30-29.12 mSame hull familyNear-identical lengthA performance-oriented masthead sloop with a fin keel and spade rudder, designed by C&C for balanced club racing
Granada Yachts 319.39 mSame hull family0.3 m longerA masthead sloop with a spade rudder and nearly 46% ballast ratio, designed for stability in a 31-foot hull
Spirit 329.48 mSame hull family0.4 m longerA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Jeanneau Rush 319.13 mSame hull familyNear-identical lengthA Ron Holland-designed IOR half-tonner that served as the official boat for the Tour de France à la Voile
San Juan 288.74 mSame hull family0.4 m shorterA 1977 masthead sloop with a 50% ballast ratio and fin keel, designed for balanced performance in a compact 28-foot hull
First 30 E (Beneteau - Berret)9.30 mSame hull family0.2 m longerA 1981 International 1/2 Ton Cup winner based on the King One design, built as a masthead sloop for competitive racing

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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