Seidelmann 30
Masthead Sloop · Centerboard (Trunk) · First built 1977
A maxi MORC centreboard design from 1977 featuring a spacious 3.66-metre beam and a custom interior by Stott Carleton
Designed by J. Robert Seidelmann, built by Dickerson.
- LOA
- Beam
- Draft (max)
- Displacement
- Ballast
- Hull type
- Centerboard (Trunk)
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 beamy beam gives 20 — a moderate, middle-of-the-road motion.
2.28 — right around the 2.0 line, the edge between coastal and offshore.
269 — moderately heavy for her waterline, a balanced cruising weight.
17.2 — moderate power for her weight; steady, all-round performance.
48% of her weight is ballast — stiff, standing up well to her sails.
A balanced, easily-driven cruiser — comfortable and forgiving for coastal work.
- Heavier than ~84% of boats her size on file
- Draws more than ~82% of boats her size on file
- Beamier than ~98% of boats her size on file
Compared with 461 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
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.