The Southwell Sovereign 51 is a 2019 custom aluminium sailing yacht built by Nebe Boatbuilders South Africa. At just over 50 feet with a 14.76-foot beam, she combines substantial cruising capability with refined interior finishing. The hull is fully insulated with fire-retardant foam and finished throughout with marine-grade materials. Power comes from a 100-horsepower Yanmar diesel engine with 110 hours recorded as of March 2025, driving a 23-inch three-bladed prop and paired with a KM4 gearbox. Fuel capacity totals 1000 litres across three integrated aluminium tanks.
The rigging is comprehensive and modern: a Sparcraft aluminium mast and boom with twin Profurl roller-furling units, stainless cable rigging, and a foldaway bowsprit. Four Ullman sails—main with lazy-jacks, roller-furling genoa, gennaker, and staysail—are managed by nine winches from Anderson and Lewmar, including self-tailing primaries and secondaries. Steering is hydraulic via Lewmar Whitlock Cobra wheel with a bow thruster and B&G P-3C autopilot.
Below deck, three cabins sleep six across two doubles and four singles, with an additional double berth formed by a folding saloon table. Two heads, two showers, and teak-and-holly flooring throughout create a spacious, well-appointed interior with excellent headroom. The galley features a three-burner Smev stove, oven, microwave, fridge, and freezer. Water capacity is 1300 litres in integrated tanks; pressurised hot and cold systems are fed by a calorifier, with nine bilge pumps for safety.
Electronics are extensive: dual VHF radios, SSB, three Garmin GPS plotters, Garmin radar, Raymarine instruments, and a Victron inverter-charger paired with a Honda generator and four solar panels. The boat carries a full complement of safety gear including an eight-person life raft, electric windlass with chain counter, and dual anchors. A 2.5-metre GRP tender with davits, transom shower, high-pressure deck-wash, full cockpit enclosure, and a gas BBQ complete the inventory.
Length
50.85 FT
Beam
14.76 FT
Material
Aluminum
Shape
Displacement
Cabins
3
Heads
2
Engines
1
Engine Make
Yanmar
Engine Model
4JH3
Power
NaN HP
Hours
110 HRS
Fuel
Diesel
Cruising Speed
8.00 KTS
Max Speed
10.00 KTS
Range
1000.00 NM
Fuel
264.17 GAL
Water
343.42 GAL