BoatsHallberg-Rassy 312

Hallberg-Rassy 312

Masthead Sloop · Fin With Rudder On Skeg · 1979–1993

A robust masthead sloop with a skeg-hung rudder, designed by Enderlein for offshore stability and cruising comfort

Designed by Christoph Rassy & Olle Enderlein.

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 moderate beam gives 28 — a moderate, middle-of-the-road motion.

Comfort ratio 28
CoastalBluewater

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

Capsize screening 1.83
LightHeavy

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

Displacement / length 299
EasygoingPowered-up

15.6 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 15.6
TenderStiff

45% of her weight is ballast — stiff, standing up well to her sails.

Ballast 45%

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

The record

Full specifications

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

Dimensions
Weights
Ballast / displacement
44.9%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
15.6
Displacement / length
299.2
Comfort ratio
28.5
Capsize screening
1.83
Hull speed
6.7 kn
Pounds / inch immersion
912
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Ballast type
Iron
Production
Years built
1979–1993
Units built
690
Designer
Christoph Rassy, Olle Enderlein
Builder
Hallberg-Rassy

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 309.12 mSame hull family0.3 m shorterOne of the most successful production yachts in history, with over 6,000 hulls built during a 32-year run
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
Contessa 329.75 mSame hull family0.3 m longerA 1973 London Boat Show winner with a skeg-hung rudder and a ballast-to-displacement ratio of 47 percent
Endeavour 329.75 mSame hull family0.3 m longerEndeavour's debut model, this masthead sloop evolved from the Irwin 32 hull into a stable, shoal-draft cruiser
Islander 329.91 mSame hull family0.5 m longerA J.H. McGlasson-designed masthead sloop that served as the foundational hull for the later Islander 33 and 34 models
Hunter Marine 309.27 mSame hull family0.2 m shorterA John Cherubini-designed masthead sloop offered in multiple keel configurations and as an unfinished kit version

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.

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Nothing filmed of this one yet

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