When two boats share the same hull type — in this case both the SeaArk DuckHawk 1652SLD 2008 and the SeaArk Forecast 156 2009 are modified vee designs with aluminum 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 — SeaArk DuckHawk 1652SLD 2008 at 16,0 ft versus SeaArk Forecast 156 2009 at 15,0 ft. Weight tells a clearer story for trailering families: the SeaArk DuckHawk 1652SLD 2008 tips the scales at 425 lbs — 357 lbs more than the SeaArk Forecast 156 2009 at 68 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 — 45 hp for the SeaArk DuckHawk 1652SLD 2008 and 40 hp for the SeaArk Forecast 156 2009. 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 SeaArk DuckHawk 1652SLD 2008 is rated for 5 passengers, while the SeaArk Forecast 156 2009 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the SeaArk DuckHawk 1652SLD 2008 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The SeaArk Forecast 156 2009 comes in at 2 lbs per hp versus 9 lbs per hp for the SeaArk DuckHawk 1652SLD 2008. 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 SeaArk DuckHawk 1652SLD 2008 if your priority is putting more people on the water — it handles 5 passengers and at 16,0 ft it has the deck room to back that rating up comfortably. The SeaArk Forecast 156 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.