BoatsCSY 51

CSY 51

Masthead Sloop · Wing Keel · First built 1985

A heavy-displacement masthead sloop designed by Johan Valentijn, featuring a wing keel for shoal-draft cruising

Designed by Johan Valentijen, built by Endeavour Yacht Corp.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Wing Keel

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelySea-kindly

Her moderate displacement on a narrow beam gives 33 — a sea-kindly motion in a seaway.

Comfort ratio 33
CoastalBluewater

1.84 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.84
LightHeavy

207 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 207
EasygoingPowered-up

16.2 — moderate power for her weight; steady, all-round performance.

Sail area / displacement 16.2
TenderStiff

47% of her weight is ballast — stiff, standing up well to her sails.

Ballast 47%

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Heavier than ~82% of boats her size on file
  • Draws less than ~92% of boats her size on file
  • Beamier than ~83% of boats her size on file

Compared with 1592 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
46.6%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
16.2
Displacement / length
207.2
Comfort ratio
32.7
Capsize screening
1.84
Hull speed
8.7 kn
Pounds / inch immersion
2264
Hull
Hull type
Wing Keel
Construction
Fiberglass
Production
Years built
First built 1985
Designer
Johan Valentijen
Builder
Endeavour Yacht 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.

Dufour Yachts 4815.29 mSame hull family0.3 m shorterA 15.29-metre performance cruiser with a 4.85-metre beam and a 2.35-metre draft for offshore stability
Bavaria Yachts 5115.60 mSame hull familyNear-identical lengthA 15.6-metre masthead sloop with a 2.4-metre draft, designed for high-volume cruising and steady offshore speed
Kraken Yachts 50 (Dibley)15.24 mSame hull family0.3 m shorterA 15.24-metre offshore cruiser with a 19.77 sail area-to-displacement ratio for balanced performance in varied conditions
Swan 5115.62 mSame hull familyNear-identical lengthThe inaugural German Frers design for Swan, this masthead sloop balances a powerful 17.85 SA/D ratio with offshore comfort
Beneteau First 53f515.90 mSame hull family0.4 m longerA Bruce Farr performance cruiser styled by Pininfarina, featuring multiple cabin layouts and an optional shoal wing keel
Bavaria Yachts C5015.55 mSame hull familyNear-identical lengthA 15.55-metre cruiser with a 2.3-metre bulb keel and a balanced sail-area-to-displacement ratio for modern cruising

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

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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