The Beneteau First 47.7 1999 vs Beneteau Sense 51 2016 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 Sense 51 2016 measures 52,4 feet overall (2016), giving it roughly 4,3 additional feet of deck space compared to the Beneteau First 47.7 1999 at 48,1 feet (1999). Weight tells a clearer story for trailering families: the Beneteau Sense 51 2016 tips the scales at 34 205 lbs - 7 518 lbs less than the Beneteau First 47.7 1999 at 26 687 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 - 100 hp for the Beneteau First 47.7 1999 and 80 hp for the Beneteau Sense 51 2016. 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 Sense 51 2016 carries 110 gallons versus 62 gallons in the Beneteau First 47.7 1999. 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 Sense 51 2016 is rated for 15 passengers, while the Beneteau First 47.7 1999 caps at 14. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Sense 51 2016 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau Sense 51 2016 displaces 34 205 lbs - a 7 518-lb difference over the Beneteau First 47.7 1999 at 26 687 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 - 7,8 ft and 7,2 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.

The Beneteau First 47.7 1999 uses Sloop rigging. Helm style differs too: the Beneteau First 47.7 1999 uses a 1 wheel versus a 2 wheels on the Beneteau Sense 51 2016. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones. For auxiliary power the Beneteau First 47.7 1999 carries a 100-hp engine against 80 hp on the Beneteau Sense 51 2016. 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 9,1 knots for the Beneteau Sense 51 2016 and 8,6 knots for the Beneteau First 47.7 1999. For extended cruising, water capacity matters: the Beneteau First 47.7 1999 carries 164 gallons versus 151 gallons on the Beneteau Sense 51 2016 - a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.