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Centaur Ketch is a Cruising sailboat built by Westerly and designed by John Laurent Giles. Her first hull was built in 1969 with an overall lengh of 8.5 m or 27.11 ft long and a Deck stepped mast mast configuration.

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CENTAUR KETCH Sailboat Specifications​


Overall Length (LOA) m / ft8.5 m / 27.11 ft
Designer(s)John Laurent Giles
categoryCruising sailboat
CountryUnited Kingdom
Hull TypeMonohull
Number of Hulls Built2444
First Hull Built1969
Last Hull Built1980
AppendagesTwin keel fin without bulb
HelmSingle tiller
RudderSingle spade rudder
CockpitClosed aft cockpit
Ballast TypeCast iron
Rigging TypeSloop Marconi masthead
Mast LayoutDeck stepped mast
Number of Cabin(s)1
Number of Head(s)1
Freshwater Tank Capacity lt/gal67 L / 17.7 gal
Ballast Ratio0.42


Overall Length (LOA) 8.5 m / 27.11 ft
Hull Length7.9 m / 25.11 ft
Waterline Length (LWL)6.6 m / 21.8 ft
Beam (width)2.6 m / 8.6 ft
Draft0.9 m / 3 ft
Light Displacement (MLC) 3040 kg / 6702 lb
Ballast Weight1270 kg / 2800 lb


Critical Hull Speed6.24 knots
Displacement-Length Ratio (DLR)299
Ballast Ratio0.42
Upwind Sail Area to Displacement16.99 m²/T / 183 ft²/T

Above Deck

Mast LayoutDeck stepped mast
Mast Height from DWL9.9 m / 32.6 ft
Rotating SparsNo
Number of Levels of Spreaders1
Spreaders Angle0 °
Spars ConstructionAluminum spars
Standing Rigging1x19 strand wire continuous
Upwind Sail Area35.65 m² / 384 ft²
Mainsail Area10.2 m² / 110 ft²
Genoa Area22 m² / 237 ft²

Engine Room

Engine(s)1 inboard engine
Fuel typeDiesel
Fuel Tank Capacity45 L / 11.9 gal

Below Deck

Maximum Headroom6 ft * 1.83 m
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