Seaforth 36
Masthead Ketch · Twin keels · First built 1980
A twin-keeled masthead ketch designed by C.S.J. Roy for shoal-draft cruising with a stable, comfortable motion
Designed by C. S. J. Roy, built by Trident Marine.
- LOA
- Beam
- Draft (max)
- Displacement
- Ballast
- Hull type
- Twin Keel
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
Her moderate displacement on a moderate beam gives 27 — a moderate, middle-of-the-road motion.
1.88 — just under the 2.0 offshore line; her beam is modest for her weight.
246 — moderately heavy for her waterline, a balanced cruising weight.
12.1 — modest power for her weight; easygoing rather than lively, and happier with a breeze.
33% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.
A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.
- Draws less than ~98% of boats her size on file
Compared with 2968 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.
Boats like this, on the water
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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.
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