A raised-deck masthead sloop with a swing keel, offering increased interior volume for trailerable coastal cruising
Designed by Lyle C. Hess.
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 2.16 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 0.53 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 12 — a quick, lively motion that feels every wave.
Comfort ratio 12
CoastalBluewater
2.27 — right around the 2.0 line, the edge between coastal and offshore.
Capsize screening 2.27
LightHeavy
162 — light for her waterline, so she is easily driven and quick to accelerate.
Displacement / length 162
EasygoingPowered-up
19.5 — plenty of sail for her weight; lively and quick to respond.
Sail area / displacement 19.5
TenderStiff
28% of her weight is ballast — on the tender side; she'll heel readily and want a reef sooner.
Ballast 28%
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
28.2%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
19.5
Displacement / length
162.4
Comfort ratio
12.2
Capsize screening
2.27
Hull speed
5.6 kn
Pounds / inch immersion
443
Hull
Hull type
Swing Keel
Construction
Fiberglass
Production
Years built
1972–1981
Designer
Lyle C. Hess
Builder
RK Industries, Coastal Recreation Inc
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.
Dufour Yachts T66.15 mSame hull familyNear-identical lengthA lightweight 800kg fractional sloop with a high sail-area-to-displacement ratio for spirited performance in light air
Marshall Marine Corporation Sanderling5.54 mSame hull family0.6 m shorterA gaff-rigged catboat based on a 1941 design, featuring a shallow-draft keel-centerboard hull for versatile day sailing
Cal Boats 247.43 mSame hull family1.3 m longerThe inaugural Jensen Marine Cal model, this fractional keel-centerboard sloop was built for shoal-water versatility
O'day 23-1 (Lift Top)7.01 mSame hull family0.9 m longerA popular C. Raymond Hunt-designed masthead sloop featuring a unique lift-top coach roof for added cabin headroom
