The Beneteau First 31.7 1997 vs Beneteau Oceanis 370 1989 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.

Size is the most obvious dividing line here. The Beneteau Oceanis 370 1989 measures 35,7 feet overall (1989), giving it roughly 4,1 additional feet of deck space compared to the Beneteau First 31.7 1997 at 31,6 feet (1997). Weight tells a clearer story for trailering families: the Beneteau Oceanis 370 1989 tips the scales at 11 244 lbs — 2 977 lbs less than the Beneteau First 31.7 1997 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 — 21 hp for the Beneteau First 31.7 1997 and 27 hp for the Beneteau Oceanis 370 1989. 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. Fuel capacity breaks the other way: the Beneteau Oceanis 370 1989 carries 26 gallons versus 8 gallons in the Beneteau First 31.7 1997. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Beneteau Oceanis 370 1989 is rated for 10 passengers, while the Beneteau First 31.7 1997 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Oceanis 370 1989 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau Oceanis 370 1989 displaces 11 244 lbs — a 2 977-lb difference over the Beneteau First 31.7 1997 at 8 267 lbs. That gap separates two entirely different categories of sailing: the heavier boat is built for offshore passage-making and load-carrying, while the lighter hull rewards performance sailing and easier handling in lighter air.

Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Beneteau First 31.7 1997 draws 6,2 ft, compared to 5,1 ft for the Beneteau Oceanis 370 1989. That 1,1-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 31.7 1997 uses Sloop rigging. Helm style differs too: the Beneteau First 31.7 1997 uses a 1 tiller versus a 1 wheel on the Beneteau Oceanis 370 1989. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones. For auxiliary power the Beneteau Oceanis 370 1989 carries a 27-hp engine against 21 hp on the Beneteau First 31.7 1997. 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 7,5 knots for the Beneteau Oceanis 370 1989 and 7,2 knots for the Beneteau First 31.7 1997. For extended cruising, water capacity matters: the Beneteau Oceanis 370 1989 carries 106 gallons versus 42 gallons on the Beneteau First 31.7 1997 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.