Southerly 49 Information, Review, Specs

Southerly 49 Drawing
Make
Southerly
Model
49
Builder
Northshore Yachts
Designer
Rob Humphreys
Number Built
Production Year(s)
2009 - 2013

The Southerly 49 represents a pinnacle of the "go-anywhere" philosophy established by Northshore Yachts. Designed by the renowned studio of Humphreys Yacht Design, this model was conceived to bridge the gap between a high-performance ocean voyager and a shallow-draft coastal explorer. Unlike many yachts of this size that are restricted by a deep fixed keel, the 49 utilizes the trademark Southerly swing-keel system, allowing it to transition from a deep-water draft of 3.12 meters (10’3”) to a mere 0.84 meters (2’9”). This capability allows a nearly 50-foot yacht to navigate the same intra-coastal waterways and shallow anchorages as a small daysailer, while still maintaining the righting moment and stability required for Category A ocean crossings.

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Sailing Performance & Handling

The sailing characteristics of the Southerly 49 are defined by its variable geometry. With the keel fully lowered to over 10 feet, the boat exhibits exceptional upwind tracking and a high degree of stiffness, outperforming most fixed-keel production cruisers of similar displacement. The design features a twin-rudder configuration, which is essential for a hull that can be "beached." These rudders provide exceptional grip when the boat is heeled, ensuring that the helm remains light and responsive even in gusty conditions.

The sail area-to-displacement ratio is balanced for long-distance passage making. While the heavy grounding plate—a massive cast-iron assembly that protects the hull and houses the keel—adds significant weight low in the hull, it contributes to a comfortable, dampened motion in a seaway. According to technical assessments from the designer, the hull form was optimized for modern cruising speeds, utilizing a long waterline to maximize hull speed during offshore legs. When sailing downwind or in light airs, the ability to partially retract the keel reduces drag, a trick often reserved for racing multihulls or dinghies but successfully integrated here into a luxury cruising platform.

Interior Comfort & Variations

The Southerly 49 is a true deck saloon yacht, characterized by a raised seating area that offers 270-degree panoramic views of the horizon. This design choice is not merely aesthetic; it allows the watch-keeper to monitor the surroundings from the warmth of the cabin. The interior joinery is typically finished in high-quality veneers like American Cherry or Light Oak, reflecting the premium positioning of the Northshore shipyard.

Standard configurations usually feature a three-cabin layout. The master suite, located aft, spans the full beam of the vessel and includes a centerline queen berth and an en-suite head with a separate shower stall. The forward VIP cabin and a secondary guest cabin (often configured with bunk beds) share a second head. This model shares its DNA closely with its siblings, the Southerly 47 and the later Southerly 48. While the 47 was the precursor, the 49 provided an extended stern and more sophisticated hydraulic systems. The later 48, produced under the Discovery Yachts era, refined the interior ergonomics further but retained the core Humphreys hull lines found in the 49.

The Southerly range has been a frequent subject of editorial praise in major British maritime publications. The 49, specifically, was highlighted by Yachting Monthly (in reviews comparing it to the 47) as a masterclass in engineering complexity. The brand gained significant cultural traction through the "Distant Shores" sailing series, where cruisers Paul and Sheryl Shard documented their global travels aboard various Southerly models, demonstrating the practical reality of using a lifting keel to explore remote Caribbean and European shallows.

Known Issues & Buyer’s Checklist

Prospective owners of a Southerly 49 must prioritize the inspection of the lifting keel mechanism, as it is the vessel's most critical and complex system.

  • Keel Hydraulics and Pennants: The keel is operated via a heavy-duty hydraulic ram. Inspectors should check for fluid leaks, the age of the hydraulic hoses, and the condition of the stainless steel pennants or pins that secure the keel in the up or down positions.
  • Grounding Plate Corrosion: The cast-iron grounding plate is exposed to the elements. While robust, any breakdown in the epoxy coating can lead to "blooming" or significant rust scaling, which may require sandblasting and recoating.
  • Twin Rudder Bearings: Because the twin rudders are relatively exposed, they can experience lateral stress. Check for play in the rudder stocks and ensure the steering linkage is synchronized correctly.
  • Deck Saloon Windows: The large acrylic or glass panels in the saloon are subject to significant UV exposure and thermal expansion. Check for signs of crazing or seal failure, which can lead to leaks into the main living area.

Community & Resources

The primary hub for technical support and owner camaraderie is the Southerly Owners Association (SOA). This organization maintains an extensive technical library and a database of modifications specific to the Northshore-built models. They are the definitive source for sourcing legacy parts or advice on the unique maintenance requirements of the swing-keel system.

The Verdict

The Southerly 49 is a specialized tool for the sailor who refuses to choose between deep-sea performance and coastal intimacy. It is a complex machine that requires more maintenance than a standard fin-keel boat, but it rewards the owner with a cruising range that is geographically unmatched in the 50-foot monohull market.

Pros:

  • Unrivaled draft flexibility (under 3 feet with keel up).
  • Superior upwind performance due to a 10-foot-plus deep keel.
  • High-quality "Deck Saloon" visibility and interior light.
  • Strong secondary market value due to brand prestige.

Cons:

  • Complexity of the hydraulic keel system requires specialist knowledge.
  • Higher maintenance costs for the grounding plate and twin-rudder setup.
  • Heavier displacement may feel less "sparky" in very light winds compared to pure performance cruisers.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Wing
Rudder
2x —
Ballast
11530 lbs
Displacement
33951 lbs
Water Capacity
144 gal
Fuel Capacity
108 gal

Dimensions

Length Overall (LOA)
49.57 ft
Waterline Length (LWL)
44.98 ft
Beam
13.78 ft
Draft
10.33 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Solent
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
1399 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
21.34
Ballast / Displacement Ratio
33.96
Displacement / Length Ratio (D/L) Ratio
166.55
Comfort Ratio
34.41
Capsize Screening Formula
1.7
Hull Speed
8.99 kn