Matching a inflatable non rigid Zodiac Cadet Airlite 240 2012 against a inflatable rigid Zodiac ProJet 420 TC4 2008 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.
Size is the most obvious dividing line here. The Zodiac ProJet 420 TC4 2008 measures 13,0 feet overall (2008), giving it roughly 5,1 additional feet of deck space compared to the Zodiac Cadet Airlite 240 2012 at 7,9 feet (2012). Weight tells a clearer story for trailering families: the Zodiac ProJet 420 TC4 2008 tips the scales at 904 lbs — 845 lbs less than the Zodiac Cadet Airlite 240 2012 at 60 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 98 hp, the Zodiac ProJet 420 TC4 2008 has a 94-hp advantage over the Zodiac Cadet Airlite 240 2012's 4-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 Zodiac ProJet 420 TC4 2008 is rated for 6 passengers, while the Zodiac Cadet Airlite 240 2012 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Zodiac ProJet 420 TC4 2008 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Zodiac ProJet 420 TC4 2008 comes in at 9 lbs per hp versus 15 lbs per hp for the Zodiac Cadet Airlite 240 2012. 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.
Top speed is rated at 40 mph for the Zodiac ProJet 420 TC4 2008 and 12 mph for the Zodiac Cadet Airlite 240 2012.
The Zodiac Cadet Airlite 240 2012 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Zodiac ProJet 420 TC4 2008 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.
Bottom line: Choose the Zodiac ProJet 420 TC4 2008 if your priority is putting more people on the water — it handles 6 passengers and at 13,0 ft it has the deck room to back that rating up comfortably. The Zodiac Cadet Airlite 240 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.