A 3.15-meter lateen-rigged dinghy produced from 1964 to 1972, serving as the base model for the larger Super Swift
LOA
Beam
Draft (max)
Displacement
Hull type
Daggerboard
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
TrailerableBeam 0.96 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 36 kg of hull, so roughly 650 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 36 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 0.08 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 moderate beam gives 3 — a quick, lively motion that feels every wave.
Comfort ratio 3
CoastalBluewater
At 2.93 she sits above the 2.0 line — beamy for her weight, and happiest coastal.
Capsize screening 2.93
LightHeavy
49 — light for her waterline, so she is easily driven and quick to accelerate.
Displacement / length 49
EasygoingPowered-up
37.9 — a lot of sail for her weight; powered-up and eager, a real performer.
Sail area / displacement 37.9
Light and lively — happiest day-sailing and coastal-hopping in settled weather.
Lighter than ~93% of boats her size on file
Narrower than ~99% of boats her size on file
Compared with 159 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
Lateen
Ratios
SA / displacement
37.9
Displacement / length
49.0
Comfort ratio
2.8
Capsize screening
2.93
Hull speed
4.0 kn
Pounds / inch immersion
102
Hull
Hull type
Daggerboard
Construction
Fiberglass
Production
Years built
1964–1972
Units built
1750
Builder
O'Day Corp
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.
Alcort Sailfish3.54 mSame hull family0.4 m longerThe original 1945 plywood kit boat that launched Alcort and sparked a recreational sailing boom
RS Tera2.87 mSame hull family0.3 m shorterA Paul Handley-designed cat-rigged dinghy featuring a lightweight 39kg hull and high power-to-weight ratio for youth racing
Topper International Topper3.40 mSame hull family0.3 m longerAn Ian Proctor-designed polypropylene dinghy featuring an unstayed cat rig and three versatile sail-area configurations
McDougall Waszp3.35 mSame hull family0.2 m longerA one-design foiling dinghy featuring wings and an unstayed rig, built in the thousands for high-performance racing
Byte Boats Inc. Byte3.66 mSame hull family0.5 m longerAn Ian Bruce-designed unstayed cat-rigged dinghy that weighs just 45 kilograms for rapid acceleration and easy handling
