The Zodiac Cadet Airlite 240 2011 vs Zodiac Zoom 340 S 2007 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Zodiac Zoom 340 S 2007 measures 11,0 feet overall (2007), giving it roughly 3,1 additional feet of deck space compared to the Zodiac Cadet Airlite 240 2011 at 7,9 feet (2011). Weight tells a clearer story for trailering families: the Zodiac Zoom 340 S 2007 tips the scales at 108 lbs — 102 lbs less than the Zodiac Cadet Airlite 240 2011 at 6 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 — 4 hp for the Zodiac Cadet Airlite 240 2011 and 10 hp for the Zodiac Zoom 340 S 2007. 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 Zodiac Zoom 340 S 2007 is rated for 5 passengers, while the Zodiac Cadet Airlite 240 2011 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac Zoom 340 S 2007 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Zodiac Cadet Airlite 240 2011 comes in at 2 lbs per hp versus 11 lbs per hp for the Zodiac Zoom 340 S 2007. 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 Zodiac Cadet Airlite 240 2011 has a documented top speed of 12 mph. Speed data wasn't available for the other model.
Bottom line: Choose the Zodiac Zoom 340 S 2007 if your priority is putting more people on the water — it handles 5 passengers and at 11,0 ft it has the deck room to back that rating up comfortably. The Zodiac Cadet Airlite 240 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.