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Southerly 590 is a Offshore cruising sailboat built by Discovery Yachts Group and designed by Dubois Naval Architects. Her first hull was built in 2017 with an overall lengh of 17.73 m or 58.2 ft long and a Keel stepped mast mast configuration.

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SOUTHERLY 590 Sailboat Specifications​


Overall Length (LOA) m / ft17.73 m / 58.2 ft
Builder(s)Discovery Yachts Group
Designer(s)Dubois Naval Architects
categoryOffshore cruising sailboat
CountryUnited Kingdom
Hull TypeMonohull
First Hull Built2017
Last Hull Built2019
AppendagesLifting keel swing keel
HelmTwin helm wheels
RudderTwin spade rudders
CockpitClosed aft cockpit
Ballast TypeCast iron
Rigging TypeSloop Marconi 9/10
Mast LayoutKeel stepped mast
Freshwater Tank Capacity lt/gal1040 L / 274.7 gal
Ballast Ratio31.33


Overall Length (LOA) 17.73 m / 58.2 ft
Hull Length17.48 m / 57.4 ft
Waterline Length (LWL)16 m / 52.6 ft
Beam (width)5.2 m / 17.1 ft
Draft3.27 m / 10.8 ft
Light Displacement (MLC) 26651 kg / 58755 lb
Maximum Displacement34763 kg / 76639 lb
Ballast Weight8350 kg / 18409 lb


Critical Hull Speed9.71 knots
Capsize Screening Formula (CSF)1.76
Comfort Ratio38.33
Displacement-Length Ratio (DLR)184
Ballast Ratio31.33
Sail Area to Displacement17.27
Upwind Sail Area to Displacement21.97 m²/T / 236 ft²/T
Downwind Sail Area to Displacement31.38 m²/T / 338 ft²/T

Above Deck

Mast LayoutKeel stepped mast
Mast Height from DWL25.62 m / 84.1 ft
Rotating SparsNo
Number of Levels of Spreaders3
Spreaders AngleSwept-back
Spars ConstructionAluminum spars
Reported Sail Area150.87 m² / 1624.00 ft²
Upwind Sail Area196 m² / 2110 ft²
Downwind Sail Area280 m² / 3014 ft²
Mainsail Area92 m² / 990 ft²
Genoa Area104 m² / 1119 ft²

Engine Room

Engine(s)1 inboard engine
Engine(s) Power146 HP
Fuel typeDiesel
Fuel Tank Capacity1392 L / 367.7 gal

Below Deck

Fridge Capacity332 L / 87.7 gal