Masthead Ketch · Fin With Rudder On Skeg · First built 1975
A masthead ketch with a skeg-mounted rudder and over 50% ballast ratio, designed for stable, heavy-weather cruising
See her sail
The fleet's own footage — the truest look at how she really moves.
Footage from Podcast Maré Sonora ®
Is it for you?
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
Her moderate displacement on a narrow beam gives 28 — a moderate, middle-of-the-road motion.
1.83 — just under the 2.0 offshore line; her beam is modest for her weight.
261 — moderately heavy for her waterline, a balanced cruising weight.
14.4 — modest power for her weight; easygoing rather than lively, and happier with a breeze.
57% of her weight is ballast — very stiff, carrying full sail in a blow.
A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.
What the fleet has seen
Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.
The Northern 37K is a masthead ketch sailboat, 11.2 meters LOA, built by Northern Yacht Ltd. since 1975. It features a fin keel with a rudder on skeg, a beam of 3.4 meters, a draft of 1.7 meters, and displaces 6350 kg. The Northern 37K has a comfort ratio of 28.4 and a sail area to displacement ratio of 14.4.
The living fleet
Where the fleet has filmed this boat.
Seen once across one channel of the fleet.
What they go for
Where the fleet has seen this model come up for sale.
A Kiribati 37 was recently bought by someone from China
from Podcast Maré Sonora ® seen October 2024watch
From the fleet's own footage — our observed signal, not broker listings.
The record
The complete reference set — tap any figure to switch between metric and imperial.
Boats like this, on the water
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
The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.
Keep asking
Search what's been said about the Northern 37K, or ask a specific question — the answer comes back written out, with links to the moments it draws on.
The newsletter
One email from the fleet — boats newly added, videos newly analyzed. No noise.
