BoatsFinngulf Yachts 31

Finngulf Yachts 31

Fractional Sloop · Fin keel, spade rudder · First built 1982

Also marketed as the Inferno 31, this fractional sloop features a 47% ballast ratio for a stiff, stable ride

Designed by Hakan Sodergren.

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

Comfort ratio 23
CoastalBluewater

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

Capsize screening 1.94
LightHeavy

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

Displacement / length 232
EasygoingPowered-up

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

Sail area / displacement 19.9
TenderStiff

47% of her weight is ballast — stiff, standing up well to her sails.

Ballast 47%

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
47.4%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
19.9
Displacement / length
232.1
Comfort ratio
22.9
Capsize screening
1.94
Hull speed
6.7 kn
Pounds / inch immersion
885
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
First built 1982
Designer
Hakan Sodergren
Builder
Finngulf

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.

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
Granada Yachts 309.18 mSame hull family0.3 m shorterA 30-foot fractional sloop with a 1.65-meter draft, designed for balanced, performance-oriented cruising
Hunter Marine 319.55 mSame hull familyNear-identical lengthA Cortland Steck design featuring a B&R rig and a fin keel, built for coastal cruising between 1983 and 1987
Maxi Yachts 959.50 mSame hull familyNear-identical lengthA 9.5-metre masthead sloop produced for a decade, featuring a skeg-hung rudder for predictable coastal handling
Beneteau Oceanis 319.66 mSame hull family0.2 m longerA Finot-Conq designed fractional sloop balancing a modern hull form with a stable 1.8-meter bulb keel
Cal Boats 309.14 mSame hull family0.3 m shorterOffered with an optional tall rig, this masthead sloop served as the predecessor to the 2-30 series

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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