BoatsFifty 33

Fifty 33

Masthead Sloop · Fin With Rudder On Skeg · First built 1978

A 9.5-meter motorsailer featuring twin-station steering and a fin keel for balanced performance in a pilothouse layout

Designed by Michel Joubert & Joubert-Nivelt, built by Kirie.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin With Rudder On Skeg

Is it for you?

Character

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

LivelySea-kindly

Her heavy displacement on a beamy beam gives 32 — a sea-kindly motion in a seaway.

Comfort ratio 32
CoastalBluewater

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

Capsize screening 1.84
LightHeavy

318 — heavy for her waterline, built to carry stores and ride steadily.

Displacement / length 318
EasygoingPowered-up

14.8 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 14.8
TenderStiff

30% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 30%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Heavier than ~86% of boats her size on file

Compared with 2657 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
30.3%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
14.8
Displacement / length
318.2
Comfort ratio
31.6
Capsize screening
1.84
Hull speed
7.0 kn
Pounds / inch immersion
1093
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1978
Designer
Michel Joubert, Joubert-Nivelt
Builder
Kirie

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.

Endeavour 329.75 mSame hull family0.2 m longerEndeavour's debut model, this masthead sloop evolved from the Irwin 32 hull into a stable, shoal-draft cruiser
Spirit 329.48 mSame hull familyNear-identical lengthA Jacques De Ridder-designed IOR 23-footer built for nearly two decades as a stiff, masthead-rigged fin-keel sloop
Contessa 329.75 mSame hull family0.2 m longerA 1973 London Boat Show winner with a skeg-hung rudder and a ballast-to-displacement ratio of 47 percent
Contest 319.50 mSame hull familyNear-identical lengthA U. van Essen-designed masthead sloop with a high ballast ratio, built for stability and comfort in a compact hull
Dufour Yachts 319.40 mSame hull familyNear-identical lengthA 1973 masthead sloop featuring a skeg-mounted rudder and a comfortable, stable design for coastal cruising
Islander 329.91 mSame hull family0.4 m longerA J.H. McGlasson-designed masthead sloop that served as the foundational hull for the later Islander 33 and 34 models

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.

The newsletter

New boats, new stories, from everywhere.

One email from the fleet — boats newly added, videos newly analyzed. No noise.

Report an issue