Seawanhaka One-Design (S&S)
Fractional Sloop · Fin Keel · First built 1939
Commissioned in 1939 for the Seawanhaka Corinthian Yacht Club, this narrow-beamed fractional sloop raced as a class into the late
Designed by Sparkman & Stephens, built by Henry B. Nevins.
- 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.
Her heavy displacement on a narrow beam gives 37 — a sea-kindly motion in a seaway.
At 1.38 she sits well under the 2.0 line — a solidly ocean-capable hull for her size.
337 — heavy for her waterline, built to carry stores and ride steadily.
16.6 — moderate power for her weight; steady, all-round performance.
41% of her weight is ballast — moderately stiff, a middle-of-the-road stability.
Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.
- Draws less than ~78% of boats her size on file
- Narrower than ~99% of boats her size on file
Compared with 2631 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
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.
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
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