SOUTHERLY 420
Specifications
Hull
| LOA | 42.19 ft |
| LWL | 36.45 ft |
| Beam | 13.22 ft |
| Draft | 8.92 ft/ 2.76 ft min |
| Displacement | 26,014 lb |
| Ballast | 7,782.3 lb |
| Material | 42’ 2”12.86 m |
| Hull speed1.34·√LWL | 8.1 kn |
Accommodation
| Cabins | 2 |
| Berths | 4 |
| Heads | 2 |
| Water | 144 L |
| Fuel | 76.1 L |
| CE category | About459 000€(2017) |
About the SOUTHERLY 420
Later became the Southerly 430
The Southernly 420 is a fractional sloop designed by Rob Humphreys and built by Northshore Yachts Ltd (UK) in 2010. With a displacement of 26014.0 lb and a comfort ratio of 33.83, the vessel offers a balanced blend of performance and stability, though the exact total hulls built remains unspecified in the source data.
- Best for:
- This boat suits coastal cruisers and weekend sailors who prioritize a responsive fractional sloop rig and modern amenities, as evidenced by the prevalence of North sails and Princess galley equipment in owner reports.
- Bluewater capability:
- With a capsize ratio of 1.79 and a D/L ratio of 239.81, the Southernly 420 is designed for coastal and nearshore cruising rather than heavy bluewater passage making, reflecting its moderate displacement and fin keel configuration.
- Comparables:
- Comparable boats include the Beneteau First 42 and the Hallberg-Rassy 42, as they share similar fractional sloop rigs, beam widths around 13 ft, and target the same performance-cruising market segment from the late 2000s to early 2010s.
Direct variant of the SOUTHERLY 420
Near-identical models — same hull, builder and designer, re-badged or lightly changed. Specs and owner-reported issues are typically shared across the group, so a sister model's page may carry detail this one doesn't.
Performance
Estimated Value
Low ConfidenceEstimated Cost of Ownership
Based on 42.19ft LOA. Actual costs vary by condition, usage, and local rates.
Articles & Reviews
Known Issues & Pre-Purchase Inspection
We don't have enough data on the SOUTHERLY 420yet to publish model-specific findings we'd stand behind — but here's a free general inspection checklist, built from our research into what actually goes wrong on boats of this kind.
Drawn from 7,029 documented issues across 2,391 models, ordered so the areas that most often turn up problems come first.
Own a SOUTHERLY 420? Reports from owners are what turn this into a model-specific checklist — and they're the reason the boats above it have one.
Similar Sailboats
Which engine powers your SOUTHERLY 420?
We haven't confirmed the engine for this model yet. If you own or know one, tell us — as owners report in, we build an accurate picture over time.
Brands sometimes mentioned for this model: Yanmar — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the SOUTHERLY 420
Checking eBay for sails sized to this boat's rig…