Matching a inflatable rigid Achilles HB-385 2008 against a inflatable non rigid Achilles LSI-335 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-385 2008 at 12,0 ft versus Achilles LSI-335 2010 at 11,0 ft. Weight tells a clearer story for trailering families: the Achilles HB-385 2008 tips the scales at 211 lbs — 120 lbs more than the Achilles LSI-335 2010 at 91 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 40 hp, the Achilles HB-385 2008 has a 25-hp advantage over the Achilles LSI-335 2010's 15-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Achilles HB-385 2008 is rated for 6 passengers, while the Achilles LSI-335 2010 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Achilles HB-385 2008 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Achilles HB-385 2008 comes in at 5 lbs per hp versus 6 lbs per hp for the Achilles LSI-335 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.
Bottom line: Choose the Achilles HB-385 2008 if your priority is putting more people on the water — it handles 6 passengers and at 12,0 ft it has the deck room to back that rating up comfortably. The Achilles LSI-335 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.