BoatsSeguin 46

Seguin 46

Masthead Sloop · Fin With Rudder On Skeg · First built 1982

Featuring a drawn-out traditional transom, this custom-finished Sparkman & Stephens sloop shares a hull mold with the 44

Designed by Sparkman & Stephens, built by Lyman Morse Boatbuilding.

LOA
Beam
Draft (max)
Displacement
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 narrow beam gives 38 — a sea-kindly motion in a seaway.

Comfort ratio 38
CoastalBluewater

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

Capsize screening 1.71
LightHeavy

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

Displacement / length 324
EasygoingPowered-up

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

Sail area / displacement 15.8

Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.

  • Heavier than ~79% of boats her size on file

Compared with 2248 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
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
15.8
Displacement / length
324.2
Comfort ratio
38.0
Capsize screening
1.71
Hull speed
7.8 kn
Pounds / inch immersion
1538
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1982
Designer
Sparkman, Stephens
Builder
Lyman Morse Boatbuilding, Lyman-Morse

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.

Amel Maramu 4613.80 mSame hull family0.2 m shorterA 13.8-metre ketch produced throughout the 1980s, balancing a moderate displacement with a stable, sea-kindly motion
Cal Boats 2-4613.87 mSame hull familyNear-identical lengthFeaturing a midships engine room and expanded living quarters, this 46-foot cruiser prioritizes interior volume
Amel Santorin 4614.00 mSame hull familyNear-identical lengthA 14-metre blue-water cruiser built from 1989 to 1997 as the successor to the Maramu 46
Hylas Yachts 4614.10 mSame hull familyNear-identical lengthA German Frers-designed masthead sloop built for offshore performance with a high sail area to displacement ratio
Morgan Yachts 461/46214.17 mSame hull family0.2 m longerA Scheel-designed center-cockpit ketch built for The Moorings, offering a stable, high-comfort platform for blue water
Moody 4614.06 mSame hull familyNear-identical lengthA Bill Dixon-designed cutter with a fin keel and spade rudder, built for comfortable, stable blue-water cruising

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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