BoatsCooper 508

Cooper 508

Masthead Sloop · Fin With Rudder On Skeg · First built 1981

A rare 15-meter masthead sloop with a short production run following a design-related legal dispute

Designed by Stan Huntingford.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin With Rudder On Skeg

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 35 — a sea-kindly motion in a seaway.

Comfort ratio 35
CoastalBluewater

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

Capsize screening 1.78
LightHeavy

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

Displacement / length 201
EasygoingPowered-up

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

Sail area / displacement 17.5
TenderStiff

43% of her weight is ballast — stiff, standing up well to her sails.

Ballast 43%

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

  • Heavier than ~88% of boats her size on file
  • Draws more than ~86% of boats her size on file
  • Beamier than ~84% of boats her size on file

Compared with 1632 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
43.0%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
17.5
Displacement / length
201.0
Comfort ratio
35.0
Capsize screening
1.78
Hull speed
8.9 kn
Pounds / inch immersion
2358
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1981
Units built
5
Designer
Stan Huntingford
Builder
Cooper Yachts Ltd

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.

Kraken Yachts 50 (Dibley)15.24 mSame hull family0.2 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 family0.2 m longerThe inaugural German Frers design for Swan, this masthead sloop balances a powerful 17.85 SA/D ratio with offshore comfort
Baltic Yachts 5115.52 mSame hull familyNear-identical lengthA 15.5-metre cruiser produced through the 1980s, offering a powerful sail-area-to-displacement ratio for its size
Bavaria Yachts 5115.60 mSame hull family0.2 m longerA 15.6-metre masthead sloop with a 2.4-metre draft, designed for high-volume cruising and steady offshore speed
Dufour Yachts 4815.29 mSame hull family0.2 m shorterA 15.29-metre performance cruiser with a 4.85-metre beam and a 2.35-metre draft for offshore stability
Dufour Yachts 500 Grand Large15.10 mSame hull family0.3 m shorterA 15.1-meter fractional sloop with a 2.3-meter bulb keel, produced from 2011 to 2015 before the 512 update

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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