BoatsTartan Marine 40 Offshore

Tartan Marine 40 Offshore

Masthead Ketch · Fin With Rudder On Skeg · First built 1976

A Sparkman & Stephens masthead ketch designed for offshore cruising, featuring a skeg-mounted rudder and shoal draft

Designed by Sparkman & Stephens.

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 moderate displacement on a moderate beam gives 34 — a sea-kindly motion in a seaway.

Comfort ratio 34
CoastalBluewater

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

Capsize screening 1.80
LightHeavy

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

Displacement / length 249
EasygoingPowered-up

14.4 — modest power for her weight; easygoing rather than lively, and happier with a breeze.

Sail area / displacement 14.4
TenderStiff

38% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 38%

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

  • Heavier than ~89% of boats her size on file
  • Draws less than ~93% of boats her size on file
  • Beamier than ~82% of boats her size on file

Compared with 2742 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
38.5%
Rig & sail area
Rig
Masthead Ketch
Ratios
SA / displacement
14.4
Displacement / length
248.8
Comfort ratio
34.3
Capsize screening
1.80
Hull speed
8.0 kn
Pounds / inch immersion
1715
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1976
Units built
30
Designer
Sparkman, Stephens
Builder
Tartan Marine

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.

Valiant Yachts 40-212.16 mSame hull familyNear-identical lengthA Robert Perry-designed cutter built for offshore passage-making, featuring a skeg-hung rudder and a stiff, heavy hull
Moody 40 (Dixon)12.24 mSame hull familyNear-identical lengthA short-run 1990s cruiser featuring a fin keel and spade rudder, optimized for a balance of coastal performance
Hans Christian Christina 4012.14 mSame hull familyNear-identical lengthA Scott Sprague-designed cutter with a skeg-hung rudder, built for steady, comfortable blue-water passages
Colvic Craft Victor 4012.19 mSame hull familyNear-identical lengthA John A. Bennett-designed masthead ketch also known as the Blackwater 40, built for steady, comfortable passage-making
Dufour Yachts 405 Grand Large12.17 mSame hull familyNear-identical lengthA 12-metre cruiser featuring a 2.03m fin keel and a balanced displacement-to-ballast ratio for stable coastal passages
Hunter Marine 40.5 Legend12.24 mSame hull familyNear-identical lengthA B&R rigged cruiser featuring a shoal-draft wing keel designed for stable, comfortable coastal passage making

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.

The newsletter

New boats, new stories. Every week, everywhere.

One email from the fleet — boats newly added, videos newly analysed. No noise.

Report an issue