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Oyster 595 Keel and centerboard is a Offshore cruising sailboat built by Oyster and designed by Humphreys Yacht Design. Her first hull was built in 2019 with an overall lengh of 19.05 m or 62.6 ft long and a Keel stepped mast mast configuration.

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OYSTER 595 KEEL AND CENTERBOARD Sailboat Specifications​


Overall Length (LOA) m / ft19.05 m / 62.6 ft
Builder(s)Oyster Marine Ltd.
Designer(s)Humphreys Yacht Design
VersionKeel and centerboard
categoryOffshore cruising sailboat
CountryUnited Kingdom
Hull TypeMonohull
First Hull Built2019
Last Hull BuiltStill in production
AppendagesCenterboard pivoting centerboard in the keel
HelmTwin helm wheels
RudderTwin spade rudders
CockpitCenter cockpit
Rigging TypeSloop Marconi 9/10
Mast LayoutKeel stepped mast
Number of Head(s)2
Freshwater Tank Capacity lt/gal1140 L / 301.2 gal


Overall Length (LOA) 19.05 m / 62.6 ft
Hull Length18.14 m / 59.6 ft
Waterline Length (LWL)16.81 m / 55.2 ft
Beam (width)5.36 m / 17.7 ft
Draft4.06 m / 13.4 ft
Light Displacement (MLC) 30807 kg / 67918 lb
Maximum Displacement30807 kg / 67918 lb


Critical Hull Speed9.95 knots
Capsize Screening Formula (CSF)1.73
Comfort Ratio40.22
Displacement-Length Ratio (DLR)184
Sail Area to Displacement18.71
Upwind Sail Area to Displacement18.32 m²/T / 197 ft²/T

Above Deck

Mast LayoutKeel stepped mast
Mast Height from DWL27.59 m / 90.6 ft
Rotating SparsNo
Number of Levels of Spreaders2
Spreaders AngleSwept-back
Reported Sail Area180.00 m² / 1937.50 ft²
Upwind Sail Area180 m² / 1938 ft²

Engine Room

Engine(s)1 inboard engine
Engine(s) Power150 HP
Fuel typeDiesel
Fuel Tank Capacity1420 L / 375.1 gal

Below Deck