BoatsSignet Marine 20

Signet Marine 20

Masthead Sloop · Fin With Rudder On Skeg · First built 1960

A Ray Kaufmann-designed masthead sloop built in both the US and UK, featuring versatile keel and rudder configurations

Designed by Ray Kaufmann.

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.

TrailerableBeam 2.03 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 973 kg of hull, so roughly 1,550 kg on a trailer: check that against your own towing rating.Shoal draftDraws 0.91 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 15 — a quick, lively motion that feels every wave.

Comfort ratio 15
CoastalBluewater

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

Capsize screening 2.07
LightHeavy

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

Displacement / length 234
EasygoingPowered-up

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

Sail area / displacement 16.3
TenderStiff

37% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 37%

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

  • Narrower than ~87% of boats her size on file

Compared with 525 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
37.3%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
16.3
Displacement / length
233.9
Comfort ratio
15.4
Capsize screening
2.07
Hull speed
5.4 kn
Pounds / inch immersion
381
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 1960
Designer
Ray Kaufmann
Builder
Signet Marine, Ltd. Hurley Marine Ltd, Hurley Marine 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.

Marieholm Boats S-206.00 mSame hull familyNear-identical lengthA short-run 1970s fractional sloop with a fin keel and transom-hung rudder, designed for coastal agility
Bavaria Yachts 6066.50 mSame hull family0.5 m longerA lightweight 6.5-meter fractional sloop with a high sail-area-to-displacement ratio for spirited coastal sailing
Halcyon 236.93 mSame hull family0.9 m longerA triple-keeled masthead sloop by Alan H. Buchanan, offering shallow-draft versatility based on the earlier Crystal 23
Borge Bringsvaerd Bb116.18 mSame hull familyNear-identical lengthA Norwegian-built classic with an active class association that has raced continuously since the 1960s
J Boats Tillotson Pearson J/247.32 mSame hull family1.3 m longerThe world's most popular one-design keelboat, featuring a light 1406kg displacement for responsive, agile handling
J J/77.04 mSame hull family1.0 m longerA 2024 fractional sloop with a shallow 1.16m draft and a high 23.55 sail-area-to-displacement ratio for responsive daysailing

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.

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