The Beneteau First 345 1983 vs Beneteau Idylle 11.50 Fin keel 1983 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 345 1983 at 36,1 ft versus Beneteau Idylle 11.50 Fin keel 1983 at 37,8 ft. Weight tells a clearer story for trailering families: the Beneteau Idylle 11.50 Fin keel 1983 tips the scales at 11 464 lbs — 220 lbs less than the Beneteau First 345 1983 at 11 244 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.

The power gap is worth calling out. Rated to 50 hp, the Beneteau Idylle 11.50 Fin keel 1983 has a 32-hp advantage over the Beneteau First 345 1983's 18-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 23 gal and 21 gal — so range won't be a tiebreaker here.

Both boats are rated for 11 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 — 11 244 lbs for the Beneteau First 345 1983 and 11 464 lbs for the Beneteau Idylle 11.50 Fin keel 1983. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.

Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Beneteau First 345 1983 draws 6,2 ft, compared to 4,5 ft for the Beneteau Idylle 11.50 Fin keel 1983. That 1,7-foot difference affects which anchorages you can access, which haul-out facilities will take you, and how carefully you need to read the tide tables in shallower cruising grounds.

The Beneteau First 345 1983 is rigged as a fractional_rig_sloop while the Beneteau Idylle 11.50 Fin keel 1983 carries Sloop rigging — a meaningful difference in sail handling complexity, upwind performance, and the size of crew you'll need to work the boat comfortably. Helm style differs too: the Beneteau First 345 1983 uses a 1 tiller versus a 1 wheel on the Beneteau Idylle 11.50 Fin keel 1983. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones. For auxiliary power the Beneteau Idylle 11.50 Fin keel 1983 carries a 50-hp engine against 18 hp on the Beneteau First 345 1983. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.

Hull speed is rated at 7,2 knots for the Beneteau First 345 1983 and 7,2 knots for the Beneteau Idylle 11.50 Fin keel 1983.