Seidelmann Yachts 30-T
Masthead Sloop · Fin keel, spade rudder · First built 1979
A 30-foot masthead sloop with a 1.65-meter draft, optimized for stability with a 40% ballast ratio
Designed by J. Robert Seidelmann.
- LOA
- Beam
- Draft (max)
- Displacement
- Ballast
- Hull type
- Fin w/spade Rudder
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 beamy beam gives 22 — a moderate, middle-of-the-road motion.
2.13 — right around the 2.0 line, the edge between coastal and offshore.
284 — heavy for her waterline, built to carry stores and ride steadily.
16.0 — moderate power for her weight; steady, all-round performance.
41% of her weight is ballast — moderately stiff, a middle-of-the-road stability.
A balanced, easily-driven cruiser — comfortable and forgiving for coastal work.
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
Two ways to keep looking — both search what the fleet has actually recorded.
The newsletter
New boats, new stories, from everywhere.
One email from the fleet — boats newly added, videos newly analyzed. No noise.