Matching a inflatable non rigid Mercury 340 Air Deck PVC 2012 against a inflatable rigid Mercury 400 Amanzi Hypalon 2013 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department — Mercury 340 Air Deck PVC 2012 at 10,5 ft versus Mercury 400 Amanzi Hypalon 2013 at 13,0 ft. Weight tells a clearer story for trailering families: the Mercury 400 Amanzi Hypalon 2013 tips the scales at 775 lbs — 766 lbs less than the Mercury 340 Air Deck PVC 2012 at 9 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 50 hp, the Mercury 400 Amanzi Hypalon 2013 has a 30-hp advantage over the Mercury 340 Air Deck PVC 2012's 20-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 5 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.
At this size, power-to-weight ratio matters more than outright horsepower. The Mercury 340 Air Deck PVC 2012 comes in at 0 lbs per hp versus 16 lbs per hp for the Mercury 400 Amanzi Hypalon 2013. 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.
Bottom line: The Mercury 400 Amanzi Hypalon 2013 at 13,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Mercury 340 Air Deck PVC 2012 at 10,5 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.