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Masthead Sloop · Keel/Cbrd. · 1968–present
The Irwin 31 was offered as a tall-rig sloop and also as a yawl, with a displacement of 9600 lbs.
Is it for you?
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
A balanced, easily-driven cruiser — comfortable and forgiving for coastal work.
The record
The complete reference set — tap any figure to switch between metric and imperial.
The family
Nearby designs by size, type, and era — worth a look alongside her.