The Beneteau First 51 1986 vs Beneteau Gran Turismo 49 Fly 2013 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 51 1986 at 51,4 ft versus Beneteau Gran Turismo 49 Fly 2013 at 51,6 ft. Weight tells a clearer story for trailering families: the Beneteau Gran Turismo 49 Fly 2013 tips the scales at 33 038 lbs — 4 378 lbs less than the Beneteau First 51 1986 at 28 660 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 80 hp, the Beneteau First 51 1986 has a 78-hp advantage over the Beneteau Gran Turismo 49 Fly 2013's 2-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Beneteau First 51 1986 carries 185 gallons versus 172 gallons in the Beneteau Gran Turismo 49 Fly 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 15 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.

The Beneteau First 51 1986 has a documented displacement of 28 660 lbs. Displacement data wasn't available for the other boat in this comparison.

The Beneteau First 51 1986 uses Sloop rigging. The Beneteau First 51 1986 has a documented auxiliary engine of 80 hp.

For extended cruising, water capacity matters: the Beneteau First 51 1986 carries 74 gallons versus 2 gallons on the Beneteau Gran Turismo 49 Fly 2013 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.