The Southerly 430 is a well-regarded cruising sailboat, designed by Rob Humphreys (also referred to as Robert Humphreys) and built by Northshore Yachts in the UK. Introduced in 2010, this monohull is celebrated for its innovative swing keel, allowing for exceptional versatility in draft, ranging from a mere 2.76 feet (0.84 meters) to a deep 8.92 feet (2.72 meters). This feature, a hallmark of the Southerly range, enables owners to explore shallow anchorages and even "beach" the yacht, a significant advantage for adventurous cruisers. The 430, sometimes marketed as the Southerly 42 RST, embodies Northshore's commitment to robust, adaptable yachts that blend comfortable cruising with the ability to access diverse waterways.
Southerly 430 Information, Review, Specs
- Make
- Southerly
- Model
- 430
- Number Built
- Production Year(s)
- 2010 - ??
The Southerly 430 began production in 2010 under Northshore Yachts Ltd. It was designed by the renowned British naval architect Rob Humphreys (Humphreys Yacht Design). Humphreys' design philosophy for the Southerly range aimed to combine the significant advantages of a lifting keel with performance-oriented hull forms. The Southerly 430 specifically showcases this by offering impressive sail performance alongside the unparalleled shallow-draft capability that defines the brand. Northshore Yachts, originating as Fairways Marine in the early 1970s, established a reputation for building versatile cruising vessels from GRP (Glass Reinforced Plastic), and the Southerly 430 continued this legacy of robust construction. The company's unique swing keel technology became its defining characteristic, allowing for exploration of cruising grounds inaccessible to most fixed-keel yachts. The Southerly 430 was produced until at least 2020, with the Southerly brand later acquired by the Discovery Yachts Group in 2017, which aimed to continue the legacy of these innovative designs. There is mention of the Southerly 430 also being marketed as the Southerly 42 RST, indicating potential variations or alternative naming conventions during its production run.
Sailing Performance and Handling
The Southerly 430, with a length overall of 42.19 feet and a waterline length of 36.45 feet, is designed for comfortable and capable cruising. Its reported sail area of 792.45 sq ft provides a sail area to displacement ratio (SA/D) of approximately 14.83, suggesting moderate performance. This indicates a boat that will sail competently in various conditions, prioritizing comfort and stability over extreme light-air speed, aligning with its cruising ethos.
With a displacement of 25,003 pounds and a ballast of 8,091 pounds, the Southerly 430 has a ballast to displacement ratio (B/D) of approximately 32.36%. While this is a moderate figure, the innovative swing keel design inherently contributes to stability, allowing the boat to stand up to a good breeze when the keel is fully deployed to its maximum draft of 8.92 feet. The displacement to length ratio (D/L) of approximately 231.1 places the Southerly 430 firmly in the moderate to heavy cruiser category. This implies a comfortable motion in a seaway, making it well-suited for extended voyages. The Southerly 430 features a fractional sloop rig and twin rudders, enhancing its control and maneuverability, particularly when navigating in challenging conditions or shallow waters. Owners often describe Southerly yachts as being easy to sail, offering powerful windward performance, and having a sociable cockpit layout with twin helm positions.
Accommodations and Layout
The interior of the Southerly 430 is designed for comfortable cruising, emphasizing living space and practicality. While specific headroom details are not provided in the structured data, Southerly yachts are generally known for their spacious interiors, a benefit often derived from their hull forms and deck designs. Online reviews and descriptions typically highlight a well-appointed layout that includes a forward V-berth cabin, a saloon with comfortable seating, a functional galley, and aft cabins. The use of high-quality materials, often featuring wood trim alongside modern finishes, contributes to a warm and inviting atmosphere below deck. Storage is ample, designed to accommodate the needs of long-term cruisers, and good ventilation is usually a priority in these designs to ensure comfort in various climates. The deck styling and a sociable cockpit layout with twin helm positions are noted features that contribute to the overall comfort and ease of use of this blue water cruiser.
Owner's Perspectives
Owners consistently praise the Southerly 430, and the Southerly range in general, for its solid construction and, most notably, its unique swing keel system. This feature is frequently cited as a primary advantage, offering unparalleled access to shallow anchorages and the ability to reduce draft significantly, expanding cruising grounds considerably. Owners often highlight the comfort of the motion in a seaway and the general ease of handling, even with its substantial size. The twin rudders are appreciated for enhancing control and maneuverability. While Southerly yachts are built in smaller numbers and are considered a significant investment, owners tend to keep them, speaking to their enduring appeal and satisfaction. The strong community of Southerly owners worldwide is a testament to the unique and enduring appeal of these shallow-draft specialists.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Solid)
- Hull Type
- Monohull Sailboat
- Keel Type
- Wing
- Rudder
- 2x —
- Ballast
- 8091 lbs
- Displacement
- 25003 lbs
- Water Capacity
- 71 gal
- Fuel Capacity
- 79 gal
Engine
- Engine Make
- Yanmar
- Engine Model
- —
- Engine Type
- —
- Engine HP
- 57
- Engine Count
- 1
- Drive Type
- —
- Fuel Type
- Diesel
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Main Sail Area
- -
- Foretriangle Sail Area
- -
- Total Sail Area (Reported)
- 792.45 sqft
- Total Sail Area (Calc)
- -
Dimensions
- LOA
- 42.19 ft
- LWL
- 36.45 ft
- Beam
- 13.22 ft
- Draft
- 8.92 ft
- Max Headroom
- -
- Air Draft
- 61.45 ft
Calculations
- Hull Speed
- 8.09 kn
- Pounds per Inch Immersion
- 1