When two boats share the same hull type — in this case both the Achilles RV-110 2011 and the Achilles SPD-335 2013 are inflatable non rigid designs with inflatable construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — Achilles RV-110 2011 at 11,0 ft versus Achilles SPD-335 2013 at 11,0 ft. At 82 lbs and 123 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.

The Achilles SPD-335 2013 tops out at 20 hp. Engine specs for the Achilles RV-110 2011 aren't listed — confirm with a dealer before selecting an outboard.

For family outings this is probably the sharpest distinction between the two. The Achilles SPD-335 2013 is rated for 5 passengers, while the Achilles RV-110 2011 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Achilles SPD-335 2013 could be the deciding factor.

Both are inflatable designs, which means they pack down for compact storage, can be carried in a bag, and are dramatically lighter than equivalent rigid hulls. The trade-off is setup time and the need to monitor tube pressure regularly. Tube diameter differs: 16 in. (41 cm) on the Achilles RV-110 2011 vs 18 in. (45 cm) on the Achilles SPD-335 2013 — larger tubes generally mean more buoyancy and a drier, more stable ride.