Cat (unstayed) · Centerboard Dinghy · First built 1949
A Richard Sarby-designed Olympic single-handed dinghy featuring an unstayed cat rig and a long history of competition
Designed by Richard Sarby, built by Brresen Badebyggeri.
LOA
Beam
Draft (max)
Displacement
Hull type
Centerboard Dinghy
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
TrailerableBeam 1.51 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 145 kg of hull, so roughly 750 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 145 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 0.12 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelyComfort 4Sea-kindly
CoastalCapsize 2.90Bluewater
LightD/L 61Heavy
EasygoingSA/D 37.0Powered-up
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
Rig & sail area
Rig
Cat (unstayed)
Ratios
SA / displacement
37.0
Displacement / length
60.9
Comfort ratio
4.3
Capsize screening
2.90
Hull speed
4.9 kn
Pounds / inch immersion
235
Hull
Hull type
Centerboard Dinghy
Construction
Wood
Production
Years built
First built 1949
Units built
4300
Designer
Richard Sarby
Builder
Brresen Badebyggeri
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.
LaserPerformance 49er4.88 mSame hull family0.4 m longerAn Olympic-class high-performance skiff featuring a massive sail-area-to-displacement ratio for elite racing
Small Craft Ltd. Wayfarer4.82 mSame hull family0.3 m longerAn Ian Proctor-designed centreboard dinghy with a high sail-to-displacement ratio, built since 1957 in wood and fibreglass
Aubin (Chantier Aubin) Snipe4.72 mSame hull family0.2 m longerA legendary William F. Crosby-designed fractional dinghy that remains one of the world's most active racing classes
Topper International Topper3.40 mSame hull family1.1 m shorterAn Ian Proctor-designed polypropylene dinghy featuring an unstayed cat rig and three versatile sail-area configurations