The Beneteau First 310 1990 vs Beneteau R/C 27 1978 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 First 310 1990 measures 31,1 feet overall (1990), giving it roughly 3,4 additional feet of deck space compared to the Beneteau R/C 27 1978 at 27,7 feet (1978). Weight tells a clearer story for trailering families: the Beneteau First 310 1990 tips the scales at 8 157 lbs — 2 866 lbs more than the Beneteau R/C 27 1978 at 5 291 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 — 18 hp for the Beneteau First 310 1990 and 16 hp for the Beneteau R/C 27 1978. 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 First 310 1990 carries 17 gallons versus 7 gallons in the Beneteau R/C 27 1978. 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 First 310 1990 is rated for 9 passengers, while the Beneteau R/C 27 1978 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau First 310 1990 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau First 310 1990 displaces 8 157 lbs — a 2 866-lb difference over the Beneteau R/C 27 1978 at 5 291 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.

Both boats draw a similar depth — 6,0 ft and 5,1 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.

The Beneteau First 310 1990 uses Sloop rigging.

Hull speed is rated at 7,2 knots for the Beneteau First 310 1990 and 6,2 knots for the Beneteau R/C 27 1978. For extended cruising, water capacity matters: the Beneteau First 310 1990 carries 45 gallons versus 24 gallons on the Beneteau R/C 27 1978 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.