Matching a inflatable rigid Achilles HB-350DX 2011 against a inflatable non rigid Achilles LSI-365 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 — Achilles HB-350DX 2011 at 11,5 ft versus Achilles LSI-365 2010 at 12,2 ft. Weight tells a clearer story for trailering families: the Achilles LSI-365 2010 tips the scales at 115 lbs — 113 lbs less than the Achilles HB-350DX 2011 at 2 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.

Both boats share a closely matched power ceiling — 30 hp for the Achilles HB-350DX 2011 and 25 hp for the Achilles LSI-365 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.

Both boats are rated for 6 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 Achilles HB-350DX 2011 comes in at 0 lbs per hp versus 5 lbs per hp for the Achilles LSI-365 2010. 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 Achilles HB-350DX 2011 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Achilles LSI-365 2010 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.