The Southerly 420 2020 vs Southerly 430 2017 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

On paper these two are close siblings in the size department — Southerly 420 2020 at 42,7 ft versus Southerly 430 2017 at 42,2 ft. At 25 003 lbs and 25 003 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

Both boats share a closely matched power ceiling — 57 hp for the Southerly 420 2020 and 57 hp for the Southerly 430 2017. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 82 gal and 79 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Southerly 420 2020 is rated for 13 passengers, while the Southerly 430 2017 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Southerly 420 2020 could be the deciding factor.

Both boats sit in a similar displacement bracket — 25 003 lbs for the Southerly 420 2020 and 25 003 lbs for the Southerly 430 2017. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.

Both boats draw a similar depth — 8,1 ft and 8,1 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.

The Southerly 420 2020 uses fractional_rig_sloop rigging.

Hull speed is rated at 8,1 knots for the Southerly 430 2017 and 8,1 knots for the Southerly 420 2020. For extended cruising, water capacity matters: the Southerly 420 2020 carries 86 gallons versus 71 gallons on the Southerly 430 2017 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.