Island Packet 31
Cutter · Long Keel · 1983–1989
A 10.46-metre cutter with a shallow 1.22-metre draft, engineered for stable, long-distance cruising in shoal waters
Designed by Robert K. Johnson.
- LOA
- Beam
- Draft (max)
- Displacement
- Ballast
- Hull type
- Long Keel
See her sail
The Island Packet 31, on the water
The fleet's own footage — the truest look at how she really moves.
Footage from All About Sailing
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 moderate beam gives 22 — a moderate, middle-of-the-road motion.
2.07 — right around the 2.0 line, the edge between coastal and offshore.
230 — moderately heavy for her waterline, a balanced cruising weight.
17.2 — 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.
- Draws less than ~83% of boats her size on file
- Beamier than ~78% of boats her size on file
Compared with 429 boats of the same type within a quarter of her length.
The living fleet
Sailed by the fleet
Where the fleet has filmed this boat.
On the water
The Island Packet 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
More boats like her, 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
Boats like this
Nearby designs by size, type, and era — worth a look alongside her.
Keep asking
The fleet has more to say
Search what's been said about the Island Packet 31, or ask a specific question — the answer comes back written out, with links to the moments it draws on.
The newsletter
New boats, new stories. Every week, everywhere.
One email from the fleet — boats newly added, videos newly analysed. No noise.






