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Sailboat Specifications

Southerly 135

Swing Keel

Designed by Rob Humphreys · Built by Northshore Yachts · First built 1984

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LOA 44.00 ft  ·  Beam 13.25 ft  ·  Displacement 23,100 lb  ·  Swing Keel
About the Southerly 135 Sailboat

Designed by the renowned British boatbuilder Southerly, the 135 is a lifting keel cruising yacht built for sailors who refuse to let shallow water limit their adventures. Like others in the Southerly range, the 135 is engineered with a distinctive swing or lifting keel system, allowing it to dry out upright on the seabed and access tidal harbours, rivers, and anchorages that would be off-limits to conventional fin-keeled boats. This makes it particularly well-suited to coastal cruising around the UK and Europe, where tidal conditions and shallow estuaries are a constant consideration. Southerly's reputation for quality construction and thoughtful interior design carries through to the 135, which strikes a balance between comfortable liveaboard cruising and practical short-handed sailing. The lifting keel system does not compromise upwind performance to the degree one might expect, and owners consistently praise the versatility the design affords. While not a bluewater offshore passage-maker in the traditional sense, the 135 is a capable and confidence-inspiring cruiser for coastal voyagers seeking both comfort and genuine flexibility in where they can go.

Dimensions & Specifications
LOA (Length Overall) 44.00 ft / 13.41 m
Beam 13.25 ft / 4.04 m
Max Draft 9.50 ft / 2.90 m
Displacement 23,100 lb / 10,478 kg
Design & Construction
Hull Type Swing Keel
Construction FG
Designer Rob Humphreys
Builder Northshore Yachts
First Built 1984
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Frequently Asked Questions

What is the hull speed of the Southerly 135?

The theoretical hull speed of the Southerly 135 is 8.19 kn knots, calculated from its waterline length.

How much does a Southerly 135 weigh?

The Southerly 135 has a displacement of 23,100 lb and a length overall (LOA) of 44.00 ft.

Who designed the Southerly 135?

The Southerly 135 was designed by Rob Humphreys, first built in 1984.