The Azimut Yachts 55 Fly 2017 vs Azimut Yachts Atlantis 51 2017 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 — Azimut Yachts 55 Fly 2017 at 55,4 ft versus Azimut Yachts Atlantis 51 2017 at 53,1 ft. Weight tells a clearer story for trailering families: the Azimut Yachts 55 Fly 2017 tips the scales at 63 934 lbs — 14 771 lbs more than the Azimut Yachts Atlantis 51 2017 at 49 163 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 800 hp, the Azimut Yachts 55 Fly 2017 has a 200-hp advantage over the Azimut Yachts Atlantis 51 2017's 600-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Azimut Yachts 55 Fly 2017 carries 676 gallons versus 396 gallons in the Azimut Yachts Atlantis 51 2017. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 16 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.
Bottom line: The Azimut Yachts 55 Fly 2017 at 55,4 ft is the right call if deck space, comfort, and entertaining are top of your list. The Azimut Yachts Atlantis 51 2017 at 53,1 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.