Southerly 470 Information, Review, Specs

Make
Southerly
Model
470
Builder
Southerly Yachts
Designer
Stephen Jones
Number Built
Production Year(s)
2013 - ??

The Southerly 470 stands as a significant evolution in the lineage of variable-draft blue-water cruisers. Designed by the renowned Stephen Jones and built by Northshore Shipyard in the United Kingdom, this model was developed to provide a larger, more performance-oriented alternative to the traditional cruising market. The 470 is essentially a refined iteration of the earlier Southerly 47, utilizing the same high-volume hull but often incorporating modern interior finishes and upgraded deck hardware to suit long-distance liveaboard requirements. The hallmark of the design is its massive cast-iron grounding plate and a high-aspect-ratio lead swing keel, a configuration that allows the vessel to transition from a deep-draft ocean performer to a shallow-draft coastal explorer capable of drying out completely on its own bottom.

Sailing Performance & Handling

At the heart of the Southerly 470's performance is the Stephen Jones-designed hull, which features a fine entry and a powerful stern section. Unlike many variable-draft boats that compromise sailing ability for shallow-water access, the 470 maintains a deep 10' 3" (3.12m) draft when the keel is fully lowered. This provides a high righting moment and exceptional lift, allowing the boat to point as high as many fixed-keel performance cruisers. According to technical assessments from Southerly Yachts, the ballast ratio is heavily concentrated in the grounding plate and the keel itself, ensuring a stiff, stable ride in heavy weather.

The handling characteristics are defined by a twin-rudder configuration. Because the boat is designed to sit on its hull, the rudders are shorter than on a standard deep-keel boat, but the dual setup ensures that at least one blade remains deeply immersed and effective even when the boat is significantly heeled. Owners often report that the boat feels balanced and tracks well, particularly when reaching. The sail plan is typically configured with a self-tacking jib for ease of handling and an optional large reacher or "Code 0" for light-air performance. When the keel is raised to its minimum draft of just 3' 3" (1.0m), the boat remains surprisingly maneuverable under power, though lateral slip increases significantly if trying to sail upwind without the keel deployed.

Interior Comfort & Variations

The interior of the Southerly 470 is defined by the manufacturer’s signature "deck salon" layout, which places the main seating area and navigation station on a raised platform. This design provides 360-degree visibility from the cabin, a feature highly valued by watch-keepers in inclement weather. The joinery is typically finished in high-quality teak or American cherry, reflecting the British craftsmanship of the Northshore yard.

The standard configuration usually features a three-cabin layout. The master stateroom is located aft, taking advantage of the full beam of the boat to offer a centerline island berth and an en-suite head with a separate shower stall. Forward, there is a secondary VIP cabin and a smaller bunk cabin or utility room, depending on the original owner’s specifications. A notable sibling variation is the Southerly 47, which shares the same hull molds but may feature a different cockpit arrangement or an older style of interior cabinetry. The 470 specifically focuses on maximizing natural light through large hull ports and multiple deck hatches, creating an airy atmosphere that belies its robust, heavy-displacement nature.

Known Issues & Buyer’s Checklist

Prospective buyers of a Southerly 470 should focus their inspection on the mechanical systems that define the brand. While the swing keel is engineered for longevity, it requires specific maintenance that can be overlooked.

  • Keel Pennants and Hydraulics: The keel is raised and lowered via a hydraulic ram and high-strength pennants. Inspect the condition of these cables and the hydraulic pump for signs of leakage or fraying. Northshore recommends regular replacement intervals for the pennants to prevent catastrophic failure.
  • Grounding Plate Integrity: Because this model is designed to dry out, the cast-iron grounding plate often shows signs of surface rust or impact. While usually cosmetic, heavy pitting or loose mounting bolts should be professionally surveyed to ensure the structural grid remains sound.
  • Rudder Bearings: The twin-rudder system places unique stresses on the bearings, especially if the boat has been frequently grounded. Check for excessive play in the steering linkage.
  • Deck Core and Teak: Many 470s were commissioned with laid teak decks. Buyers should use a moisture meter to check for core saturation around deck fittings, as any ingress can lead to costly delamination in the balsa-cored sandwich construction.

Community & Resources

Owners of the 470 benefit from a dedicated and technically proficient community. The Southerly Owners Association is an active group that maintains a repository of technical manuals and hosting rallies. This organization is the primary resource for troubleshooting the specific nuances of the Northshore-built swing keel systems and sourcing replacement parts for the bespoke hardware found on these vessels.

The Verdict

The Southerly 470 is a rare breed of yacht that successfully bridges the gap between a high-performance blue-water voyager and a versatile coastal cruiser. It is an ideal choice for sailors who refuse to be limited by water depth but demand a boat that can handle a North Atlantic crossing with confidence.

Pros

  • Exceptional Versatility: The 3' 3" minimum draft allows access to shallow anchorages and inland waterways closed to other boats of this size.
  • High Build Quality: Traditional British craftsmanship with robust scantlings and high-end interior finishes.
  • True Performance: Unlike many lifting-keel boats, the deep 10' 3" draft provides excellent upwind capability.

Cons

  • Mechanical Complexity: The swing keel and hydraulic systems require more diligent maintenance than a fixed-keel equivalent.
  • Weight: As a heavy-displacement cruiser, it requires significant breeze or large specialized sails to move efficiently in light air.
  • Price Point: Due to the complexity of the build, these vessels command a premium on the secondary market.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Wing
Rudder
1x —
Ballast
13492 lbs
Displacement
38043 lbs
Water Capacity
129 gal
Fuel Capacity
174 gal

Dimensions

Length Overall (LOA)
47.08 ft
Waterline Length (LWL)
42.81 ft
Beam
14.63 ft
Draft
10.24 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
1035 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
14.64
Ballast / Displacement Ratio
35.47
Displacement / Length Ratio (D/L) Ratio
216.47
Comfort Ratio
37.43
Capsize Screening Formula
1.74
Hull Speed
8.77 kn