A swing-keel variant of the Montego 20, this fractional sloop offers a lively sail area-to-displacement ratio of 19.99
Designed by Johannes "Jopie" Helsen, built by Universal Marine.
LOA
Beam
Draft (max)
Displacement
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 2.19 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 703 kg of hull, so roughly 1,300 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 703 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 0.37 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 2.48 she sits above the 2.0 line — beamy for her weight, and happiest coastal.
Capsize screening 2.48
LightHeavy
124 — light for her waterline, so she is easily driven and quick to accelerate.
Displacement / length 124
EasygoingPowered-up
20.0 — plenty of sail for her weight; lively and quick to respond.
Sail area / displacement 20.0
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
Fractional Sloop
Ratios
SA / displacement
20.0
Displacement / length
123.7
Comfort ratio
9.5
Capsize screening
2.48
Hull speed
5.7 kn
Pounds / inch immersion
455
Hull
Hull type
Swing Keel
Construction
Fiberglass
Ballast type
Iron
Production
Years built
1976–1985
Designer
Johannes "Jopie" Helsen
Builder
Universal Marine
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.
Microtonner 195.50 mSame hull family0.4 m shorterA high-performance fractional sloop designed by Nestor Volker to the International Micro Class rule for competitive racing
Dufour Yachts T66.15 mSame hull family0.2 m longerA lightweight 800kg fractional sloop with a high sail-area-to-displacement ratio for spirited performance in light air
Melges 247.32 mSame hull family1.4 m longerA 7.32-metre sportboat with a lifting keel and a 32.09 sail-area-to-displacement ratio built for rapid planing
Marshall Marine Corporation Sanderling5.54 mSame hull family0.4 m shorterA gaff-rigged catboat based on a 1941 design, featuring a shallow-draft keel-centerboard hull for versatile day sailing
