BoatsSailmaster 45

Sailmaster 45

Masthead Sloop · Fin Keel · First built 1963

A Sparkman & Stephens masthead sloop designed as a 13.7-metre fin-keel cruiser, known as design #1618.2

Designed by Sparkman & Stephens, built by N. V. Werf Gusto.

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

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 51 — a heavy, notably soft motion offshore.

Comfort ratio 51
CoastalBluewater

At 1.45 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.

Capsize screening 1.45
LightHeavy

448 — very heavy for her waterline, a serious load-carrying cruiser.

Displacement / length 448
EasygoingPowered-up

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

Sail area / displacement 16.4
TenderStiff

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

Ballast 32%

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

  • Heavier than ~82% of boats her size on file
  • Narrower than ~89% of boats her size on file

Compared with 2329 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
32.1%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
16.4
Displacement / length
448.0
Comfort ratio
51.1
Capsize screening
1.45
Hull speed
7.4 kn
Pounds / inch immersion
1192
Hull
Hull type
Fin Keel
Construction
Fiberglass
Ballast type
Lead
Production
Years built
First built 1963
Units built
3
Designer
Sparkman, Stephens
Builder
N. V. Werf Gusto

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 familyNear-identical lengthA 13.8-metre ketch produced throughout the 1980s, balancing a moderate displacement with a stable, sea-kindly motion
Gulfstar Yachts 4413.62 mSame hull familyNear-identical lengthA masthead sloop designed by Richard C. Lazzara, featuring a fin keel with a skeg-mounted rudder for offshore stability
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
Hallberg-Rassy 43 MKI13.57 mSame hull family0.2 m shorterA masthead-rigged blue water cruiser featuring a skeg-hung rudder and a stable, heavy-displacement hull
Outbound Yachts 44/4613.64 mSame hull familyNear-identical lengthA Carl Schumacher-designed masthead sloop built for offshore performance with a stiff, comfortable motion
Morgan Yachts 45213.72 mSame hull familyNear-identical lengthA masthead ketch with a fin keel and skeg-mounted rudder, engineered for offshore stability and steady passage-making

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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