The AB Inflatables 12 DLX 2011 vs AB-Inflatables Nautilus 15 DLX 2019 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 — AB Inflatables 12 DLX 2011 at 12,3 ft versus AB-Inflatables Nautilus 15 DLX 2019 at 15,0 ft. Weight tells a clearer story for trailering families: the AB-Inflatables Nautilus 15 DLX 2019 tips the scales at 766 lbs — 251 lbs less than the AB Inflatables 12 DLX 2011 at 515 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 60 hp, the AB-Inflatables Nautilus 15 DLX 2019 has a 30-hp advantage over the AB Inflatables 12 DLX 2011's 30-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the AB-Inflatables Nautilus 15 DLX 2019 carries 27 gallons versus 11 gallons in the AB Inflatables 12 DLX 2011. 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 AB Inflatables 12 DLX 2011 is rated for 6 passengers, while the AB-Inflatables Nautilus 15 DLX 2019 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the AB Inflatables 12 DLX 2011 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The AB-Inflatables Nautilus 15 DLX 2019 comes in at 13 lbs per hp versus 17 lbs per hp for the AB Inflatables 12 DLX 2011. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
The AB-Inflatables Nautilus 15 DLX 2019 is trailerable — a genuine lifestyle advantage at this size. The AB Inflatables 12 DLX 2011 isn't listed as trailerable, which may mean a permanent berth or mooring is required.
Bottom line: Choose the AB Inflatables 12 DLX 2011 if your priority is putting more people on the water — it handles 6 passengers and at 12,3 ft it has the deck room to back that rating up comfortably. The AB-Inflatables Nautilus 15 DLX 2019 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.