BoatsWesterly Yachts Ltd. Sealord 39

Westerly Yachts Ltd. Sealord 39

Masthead Sloop · Fin keel, spade rudder · 1983–1987

A 39-foot masthead sloop with a 43% ballast ratio, designed for offshore stability and steady passage-making

Designed by Ed Dubois.

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

Comfort ratio 27
CoastalBluewater

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

Capsize screening 2.00
LightHeavy

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

Displacement / length 241
EasygoingPowered-up

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

Sail area / displacement 16.1
TenderStiff

43% of her weight is ballast — stiff, standing up well to her sails.

Ballast 43%

A balanced, easily-driven cruiser — comfortable and forgiving for coastal work.

  • Beamier than ~84% of boats her size on file

Compared with 2914 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
43.2%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
16.1
Displacement / length
240.6
Comfort ratio
26.9
Capsize screening
2.00
Hull speed
7.6 kn
Pounds / inch immersion
1529
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
1983–1987
Units built
42
Designer
Ed Dubois
Builder
Westerly Yachts Ltd

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.

RM Yachts 118011.80 mSame hull familyNear-identical lengthA Marc Lombard-designed performance cruiser featuring a wide beam, dual rudders, and a powerful cutter rig
Sabre Yachts 38 MKII11.79 mSame hull familyNear-identical lengthA 1988-1995 production cruiser with a 1.98m draft and a skeg-mounted rudder for offshore stability
Sadler Yachts 3811.79 mSame hull familyNear-identical lengthA Stephen Jones-designed masthead sloop with a fin keel and spade rudder, built for performance cruising.
Warrior 3811.58 mSame hull family0.2 m shorterA short-run 1980s cruiser featuring a shallow 1.52m draft and a heavy ballast-to-displacement ratio for steady offshore work
Morgan Yachts 38211.68 mSame hull familyNear-identical lengthA Ted Brewer-designed masthead sloop built for offshore stability, featuring a skeg-hung rudder and a stiff displacement
Aragosa Yachts 3811.61 mSame hull familyNear-identical lengthA 1988 masthead sloop with a 35% ballast ratio, designed by Ted Brewer for balanced offshore performance

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

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