Matching a inflatable non rigid Mercury 340 Air Deck Hypalon 2011 against a inflatable rigid Mercury 350 Amanzi 2010 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 Hypalon 2011 at 11,2 ft versus Mercury 350 Amanzi 2010 at 11,4 ft. At 11 lbs and 4 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling — 15 hp for the Mercury 340 Air Deck Hypalon 2011 and 30 hp for the Mercury 350 Amanzi 2010. 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.
For family outings this is probably the sharpest distinction between the two. The Mercury 340 Air Deck Hypalon 2011 is rated for 5 passengers, while the Mercury 350 Amanzi 2010 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mercury 340 Air Deck Hypalon 2011 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Mercury 350 Amanzi 2010 comes in at 0 lbs per hp versus 1 lbs per hp for the Mercury 340 Air Deck Hypalon 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.
Bottom line: Choose the Mercury 340 Air Deck Hypalon 2011 if your priority is putting more people on the water — it handles 5 passengers and at 11,2 ft it has the deck room to back that rating up comfortably. The Mercury 350 Amanzi 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.