Cumulant Yachts 40
Masthead Sloop · Lifting Keel · First built 1993
A Van de Stadt-designed masthead sloop featuring a lifting keel for versatile access to shallow anchorages
Designed by E. G. Van de Stadt, built by Hjb Cumulant Yachts.
- LOA
- Beam
- Draft (max)
- Displacement
- Ballast
- Hull type
- Lifting Keel
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
Shoal draughtDraws 1.20 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelyComfort 40Sea-kindly
CoastalCapsize 1.68Bluewater
LightD/L 334Heavy
EasygoingSA/D 16.9Powered-up
TenderBallast 25%Stiff
Built heavy and sea-kindly — a boat made to cross oceans and forgive a rough night.
- Heavier than ~78% of boats her size on file
Compared with 269 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
Ballast / displacement
25.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
16.9
Displacement / length
334.4
Comfort ratio
40.2
Capsize screening
1.68
Hull speed
7.7 kn
Pounds / inch immersion
1462
Hull
Hull type
Lifting Keel
Construction
Steel or Alu
Ballast type
Lead
Production
Years built
First built 1993
Designer
E. G. Van de Stadt
Builder
HJB Cumulant Yachts, Cumulant Yachts
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.
Brewer 4413.41 mSame hull family0.9 m longerA stretched evolution of the 12.8 featuring a reverse transom and a versatile keel-centerboard configuration
Little Harbor 4413.51 mSame hull family1.0 m longerA 13.5-metre cruiser with a 39.72 comfort ratio, built since 1983 for stable, heavy-displacement passage making
Southerly 42012.86 mSame hull family0.4 m longerA Rob Humphreys-designed fractional sloop featuring a versatile swing keel that later evolved into the Southerly 430
Bristol Yachts 45.513.79 mSame hull family1.3 m longerA Ted Hood-designed cruiser featuring a versatile keel-centerboard hull available in both aft and center cockpit layouts
Henry R. Hinckley Bermuda 40-112.42 mSame hull familyNear-identical lengthA long-running production classic with 203 hulls built between 1959 and 1991, featuring a versatile keel-centerboard.
Ovni 45013.98 mSame hull family1.5 m longerA Marc Lombard-designed lifting keel cruiser with dual rudders, built for versatility and shoal-water exploration
The family
Boats like this
Nearby designs by size, type, and era — worth a look alongside her.
Hutting Yachts 40A heavy-displacement, long-keeled cutter by Dick Koopmans Sr. built for serious offshore stability and comfortC-Yacht 1040A Frans Maas-designed fractional sloop built for comfortable cruising with a stable 40% ballast ratioC&C Yachts 40-2 ACA performance-oriented masthead sloop from 1977 featuring a fin keel and spade rudder for responsive handlingStadtship 56A high-performance aluminium fractional sloop featuring a lifting keel for versatile access to deep and shallow waters
Keep looking
Nothing filmed of this one yet
Two ways to keep looking — both search what the fleet has actually recorded.
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