An Andrew Stewart-designed IOR mini-tonner featuring a swing keel and lifting rudder for versatile performance
Designed by Andrew Stewart, built by Zygal Boats.
LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Swing Keel
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
TrailerableBeam 2.49 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 885 kg of hull, so roughly 1,500 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 885 kg of hull, with a keel that raises or a draught shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.Shoal draughtDraws 0.69 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelySea-kindly
Her light displacement on a beamy beam gives 10 — a quick, lively motion that feels every wave.
Comfort ratio 10
CoastalBluewater
At 2.62 she sits above the 2.0 line — beamy for her weight, and happiest coastal.
Capsize screening 2.62
LightHeavy
177 — light for her waterline, so she is easily driven and quick to accelerate.
Displacement / length 177
EasygoingPowered-up
18.1 — plenty of sail for her weight; lively and quick to respond.
Sail area / displacement 18.1
TenderStiff
44% of her weight is ballast — stiff, standing up well to her sails.
Ballast 44%
Light and lively — happiest day-sailing and coastal-hopping in settled weather.
The record
Full specifications
The complete reference set — tap any figure to switch between metric and imperial.
Dimensions
Weights
Ballast / displacement
43.6%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
18.1
Displacement / length
177.2
Comfort ratio
9.9
Capsize screening
2.62
Hull speed
5.5 kn
Pounds / inch immersion
496
Hull
Hull type
Swing Keel
Construction
Fiberglass
Ballast type
Iron
Production
Years built
1975–1985
Units built
130
Designer
Andrew Stewart
Builder
Zygal Boats
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.
Marshall Marine Corporation Sanderling5.54 mSame hull family1.2 m shorterA gaff-rigged catboat based on a 1941 design, featuring a shallow-draft keel-centerboard hull for versatile day sailing
Dufour Yachts T66.15 mSame hull family0.6 m shorterA lightweight 800kg fractional sloop with a high sail-area-to-displacement ratio for spirited performance in light air
O'day 226.61 mSame hull family0.2 m shorterA prolific production success with over 3,000 hulls built, offering a nimble fractional rig for coastal daysailing
O'day 23-1 (Lift Top)7.01 mSame hull family0.2 m longerA popular C. Raymond Hunt-designed masthead sloop featuring a unique lift-top coach roof for added cabin headroom
