BoatsIrwin Yachts 31 Citation

Irwin Yachts 31 Citation

Masthead Sloop · Fin keel, spade rudder · First built 1983

A 1983 masthead sloop with a 1.83-metre draft and a 36% ballast ratio, designed for performance-oriented sailing

Designed by Ted Irwin.

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.

LivelySea-kindly

Her moderate displacement on a beamy beam gives 21 — a moderate, middle-of-the-road motion.

Comfort ratio 21
CoastalBluewater

2.10 — right around the 2.0 line, the edge between coastal and offshore.

Capsize screening 2.10
LightHeavy

223 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 223
EasygoingPowered-up

17.2 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 17.2
TenderStiff

37% of her weight is ballast — moderately stiff, a middle-of-the-road stability.

Ballast 37%

A balanced, easily-driven cruiser — comfortable and forgiving for coastal work.

  • Draws more than ~76% of boats her size on file

Compared with 2657 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.

Dimensions
Weights
Ballast / displacement
36.6%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.2
Displacement / length
223.1
Comfort ratio
21.1
Capsize screening
2.10
Hull speed
6.9 kn
Pounds / inch immersion
1042
Hull
Hull type
Fin w/spade rudder
Construction
Fiberglass
Production
Years built
First built 1983
Designer
Ted Irwin
Builder
Irwin Yachts

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.

Hunter Marine 319.55 mSame hull familyNear-identical lengthA Cortland Steck design featuring a B&R rig and a fin keel, built for coastal cruising between 1983 and 1987
Maxi Yachts 959.50 mSame hull familyNear-identical lengthA 9.5-metre masthead sloop produced for a decade, featuring a skeg-hung rudder for predictable coastal handling
Hunter Marine 339.96 mSame hull family0.4 m longerA 1977 masthead sloop with a 38% ballast ratio, designed for stability and coastal performance
Nonsuch 309.24 mSame hull family0.3 m shorterA 30-foot cruiser with a 43% ballast ratio, offering a stable and stiff platform for coastal cruising
Granada Yachts 319.39 mSame hull familyNear-identical lengthA masthead sloop with a spade rudder and nearly 46% ballast ratio, designed for stability in a 31-foot hull
Islander 329.91 mSame hull family0.4 m longerA J.H. McGlasson-designed masthead sloop that served as the foundational hull for the later Islander 33 and 34 models

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

Nothing filmed of this one yet

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