BoatsSwift 40

Swift 40

Masthead Ketch · Fin With Rudder On Skeg · 1979–1984

A Sparkman & Stephens masthead ketch built on a versatile hull shared by several international production models

Designed by Sparkman & Stephens, built by Kang Nam Shipbuilders (Korea).

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.

LivelySea-kindly

Her heavy displacement on a moderate beam gives 36 — a sea-kindly motion in a seaway.

Comfort ratio 36
CoastalBluewater

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

Capsize screening 1.84
LightHeavy

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

Displacement / length 364
EasygoingPowered-up

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

Sail area / displacement 15.1
TenderStiff

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

Ballast 37%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Heavier than ~88% of boats her size on file
  • Draws less than ~81% of boats her size on file
  • Beamier than ~85% of boats her size on file

Compared with 2909 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
36.8%
Rig & sail area
Rig
Masthead Ketch
Ratios
SA / displacement
15.1
Displacement / length
364.1
Comfort ratio
35.7
Capsize screening
1.84
Hull speed
7.5 kn
Pounds / inch immersion
1477
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Ballast type
Lead
Production
Years built
1979–1984
Designer
Sparkman, Stephens
Builder
Kang Nam Shipbuilders (KOREA)

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.

Hallberg-Rassy 3911.85 mSame hull familyNear-identical lengthProduced in two versions over twelve years, this cruiser evolved from the 1991 MK I to the extended MK II with a bathing platform
Nautor 3911.95 mSame hull familyNear-identical lengthA Sparkman & Stephens masthead ketch built by Nautor, designed for heavy-displacement comfort and offshore stability
Cavalier 3911.89 mSame hull familyNear-identical lengthA Bob Salthouse-designed masthead sloop with a skeg-hung rudder, built for offshore stability between 1973 and 1979
C&C Yachts 3911.96 mSame hull familyNear-identical lengthA 1971-1974 production masthead sloop with a moderate displacement-to-length ratio, balanced for coastal cruising
Cal Boats 4011.99 mSame hull familyNear-identical lengthA legendary offshore racer with 160 built, featuring a light displacement and a high sail-area-to-displacement ratio
Dufour Yachts 39 CC11.99 mSame hull familyNear-identical lengthA Mortain & Mavrikios-designed center cockpit cruiser balancing a stable 1.88m draft with a nimble 7,080kg displacement

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

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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