O'day 31
Masthead Sloop · Fin keel, spade rudder · 1985–1988
A C. Raymond Hunt-designed masthead sloop offering a refined, extended evolution of the Ranger 30 platform
Designed by C. Raymond Hunt Associates, Raymond Hunt (C. R. Hunt & Assoc.).
- 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 moderate displacement on a beamy beam gives 25 — a moderate, middle-of-the-road motion.
1.99 — just under the 2.0 offshore line; her beam is modest for her weight.
269 — moderately heavy for her waterline, a balanced cruising weight.
15.0 — modest power for her weight; easygoing rather than lively, and happier with a breeze.
38% of her weight is ballast — moderately stiff, a middle-of-the-road stability.
A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.
On the water
The O'day 31 on video
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
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