BoatsSoutherly Yachts 42/420

Southerly Yachts 42/420

Solent · Swing Keel · First built 2021

A versatile Solent-rigged cruiser featuring a swing keel that allows for deep-water performance and shoal-draft access

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Swing Keel

Is it for you?

Character

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

Shoal draftDraws 0.84 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelySea-kindly

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

Comfort ratio 32
CoastalBluewater

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

Capsize screening 1.81
LightHeavy

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

Displacement / length 230
EasygoingPowered-up

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

Sail area / displacement 15.2
TenderStiff

32% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.

Ballast 32%

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
32.4%
Rig & sail area
Rig
Solent
Ratios
SA / displacement
15.2
Displacement / length
230.5
Comfort ratio
32.1
Capsize screening
1.81
Hull speed
8.1 kn
Pounds / inch immersion
1722
Hull
Hull type
Swing Keel
Construction
Fiberglass
Production
Years built
First built 2021
Builder
Southerly Yachts

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.

Southerly 42012.86 mSame hull family0.4 m shorterA Rob Humphreys-designed fractional sloop featuring a versatile swing keel that later evolved into the Southerly 430
Allures 39.912.65 mSame hull family0.7 m shorterA masthead sloop with a swing keel and 2.75-metre draft, built by Allures since 2013 for offshore versatility
Boreal Yachts 4714.55 mSame hull family1.3 m longerA 14.55-metre aluminum cutter with a 2.48-metre draft, optimized for high-latitude stability and blue-water performance
Ovni 4012.60 mSame hull family0.7 m shorterA 12.6-metre cutter with a high 25.21 sail-area-to-displacement ratio, built for agile performance during her 1984-1987
Garcia Yachts Exploration 4514.88 mSame hull family1.6 m longerA rugged aluminum cutter by Berret-Racoupeau featuring a centerboard and dual rudders for high-latitude exploration
Brewer 4413.41 mSame hull familyNear-identical lengthA stretched evolution of the 12.8 featuring a reverse transom and a versatile keel-centerboard configuration

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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