The Beneteau First 30 JK 2010 vs Beneteau First 305 1984 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 - Beneteau First 30 JK 2010 at 32,2 ft versus Beneteau First 305 1984 at 32,2 ft. Weight tells a clearer story for trailering families: the Beneteau First 305 1984 tips the scales at 9 259 lbs - 992 lbs less than the Beneteau First 30 JK 2010 at 8 267 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling - 20 hp for the Beneteau First 30 JK 2010 and 18 hp for the Beneteau First 305 1984. 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 - 8 gal and 7 gal - so range won't be a tiebreaker here.
Both boats are rated for 9 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Both boats sit in a similar displacement bracket - 8 267 lbs for the Beneteau First 30 JK 2010 and 9 259 lbs for the Beneteau First 305 1984. 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 - 6,2 ft and 5,8 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Beneteau First 30 JK 2010 uses Sloop rigging. Helm style differs too: the Beneteau First 30 JK 2010 uses a 1 tiller (helm wheel in option) versus a 1 tiller on the Beneteau First 305 1984. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones.
Hull speed is rated at 7,0 knots for the Beneteau First 30 JK 2010 and 6,9 knots for the Beneteau First 305 1984. For extended cruising, water capacity matters: the Beneteau First 30 JK 2010 carries 42 gallons versus 26 gallons on the Beneteau First 305 1984 - a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The Beneteau First 30 JK 2010 and Beneteau First 305 1984 are closely matched on paper. A sea trial on both in representative conditions is the only reliable way to find which one suits your sailing style, home port, and intended cruising ground.