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Southerly 480 is a Offshore deck saloon cruising sailboat built by Discovery Yachts Group and designed by Stephen Jones Yacht Design. Her first hull was built in 2019 with an overall lengh of 14.83 m or 48.8 ft long and a Keel stepped mast mast configuration.

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SOUTHERLY 480 Sailboat Specifications​


Overall Length (LOA) m / ft14.83 m / 48.8 ft
Builder(s)Discovery Yachts Group
Designer(s)Stephen Jones Yacht Design
categoryOffshore deck saloon cruising sailboat
CountryUnited Kingdom
Hull TypeMonohull
First Hull Built2019
Last Hull Built2020
AppendagesLifting keel swing keel
HelmTwin helm wheels
RudderTwin spade rudders
CockpitClosed aft cockpit
Rigging TypeSloop Marconi (in-mast furling mainsail) 9/10
Mast LayoutKeel stepped mast
Number of Cabin(s)3
Number of Head(s)2
Freshwater Tank Capacity lt/gal403 L / 106.5 gal
Ballast Ratio35.47


Overall Length (LOA) 14.83 m / 48.8 ft
Hull Length14.83 m / 48.8 ft
Waterline Length (LWL)13.05 m / 42.10 ft
Beam (width)4.46 m / 14.7 ft
Draft3.12 m / 10.2 ft
Light Displacement (MLC) 17256 kg / 38043 lb
Maximum Displacement17256 kg / 38043 lb
Ballast Weight6120 kg / 13492 lb


Critical Hull Speed8.77 knots
Capsize Screening Formula (CSF)1.74
Comfort Ratio36.91
Displacement-Length Ratio (DLR)220
Ballast Ratio35.47
Sail Area to Displacement15.86
Upwind Sail Area to Displacement19.47 m²/T / 210 ft²/T

Above Deck

Mast LayoutKeel stepped mast
Mast Height from DWL21.83 m / 71.7 ft
Rotating SparsNo
Number of Levels of Spreaders2
Spreaders AngleSwept-back
Spars ConstructionAluminum spars
Reported Sail Area103.70 m² / 1116.22 ft²
Upwind Sail Area130 m² / 1399 ft²
Mainsail Area57.5 m² / 619 ft²
Genoa Area72.5 m² / 780 ft²

Engine Room

Engine(s)1 inboard engine
Engine(s) Power80 HP
Fuel typeDiesel
Fuel Tank Capacity664 L / 175.4 gal

Below Deck