Fractional Sloop · Centerboard Dinghy · First built 1939
A high-performance Uffa Fox fractional dinghy that has maintained an active racing class since 1939
Designed by Uffa Fox, built by GoodWood Boat Co.
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 1.52 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 163 kg of hull, so roughly 750 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 163 kg of hull, with a keel that raises or a draft shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.Shoal draftDraws 0.23 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 5 — a quick, lively motion that feels every wave.
Comfort ratio 5
CoastalBluewater
At 2.81 she sits above the 2.0 line — beamy for her weight, and happiest coastal.
Capsize screening 2.81
LightHeavy
59 — light for her waterline, so she is easily driven and quick to accelerate.
Displacement / length 59
EasygoingPowered-up
45.9 — a lot of sail for her weight; powered-up and eager, a real performer.
Sail area / displacement 45.9
Light and lively — happiest day-sailing and coastal-hopping in settled weather.
Heavier than ~78% of boats her size on file
Draws more than ~99% of boats her size on file
Compared with 372 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
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
45.9
Displacement / length
58.6
Comfort ratio
4.7
Capsize screening
2.81
Hull speed
5.0 kn
Pounds / inch immersion
250
Hull
Hull type
Centerboard Dinghy
Construction
Wood
Production
Years built
First built 1939
Units built
250
Designer
Uffa Fox
Builder
GoodWood Boat Co
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.
Finn (Monotype)4.50 mSame hull family0.2 m longerA Richard Sarby-designed Olympic single-handed dinghy featuring an unstayed cat rig and a long history of competition
Small Craft Ltd. Wayfarer4.82 mSame hull family0.6 m longerAn Ian Proctor-designed centerboard dinghy with a high sail-to-displacement ratio, built since 1957 in wood and fiberglass
Lido 144.27 mSame hull familyNear-identical lengthA fractional sloop dinghy designed by Barney Lehman, updated in 1995 with a modern mold for improved longevity and safety
MacKay Boats Ltd. 49erfx4.88 mSame hull family0.6 m longerA high-performance skiff utilizing the 49er hull with a downsized rig specifically optimized for lighter crews
LaserPerformance 49er4.88 mSame hull family0.6 m longerAn Olympic-class high-performance skiff featuring a massive sail-area-to-displacement ratio for elite racing
Aubin (Chantier Aubin) Snipe4.72 mSame hull family0.5 m longerA legendary William F. Crosby-designed fractional dinghy that remains one of the world's most active racing classes
