The Duckworth 28 2010 is a modified-V design and the Duckworth Ultra Magnum Inboard 22 ft. 2008 is a deep-V design, so you're likely deciding between two noticeably 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 Duckworth 28 2010 measures 28,0 feet overall (2010), giving it roughly 6,0 additional feet of deck space compared to the Duckworth Ultra Magnum Inboard 22 ft. 2008 at 22,0 feet (2008). Weight tells a clearer story for trailering families: the Duckworth 28 2010 tips the scales at 5 100 lbs - 1 790 lbs more than the Duckworth Ultra Magnum Inboard 22 ft. 2008 at 3 310 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 Duckworth 28 2010 carries a rated maximum of 500 hp. Engine data for the Duckworth Ultra Magnum Inboard 22 ft. 2008 wasn't available in our records - check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Duckworth 28 2010 carries 130 gallons versus 62 gallons in the Duckworth Ultra Magnum Inboard 22 ft. 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Duckworth 28 2010 is rated for 8 passengers, while the Duckworth Ultra Magnum Inboard 22 ft. 2008 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth 28 2010 could be the deciding factor.
Bottom line: Choose the Duckworth 28 2010 if your priority is putting more people on the water - it handles 8 passengers and at 28,0 ft it has the deck room to back that rating up comfortably. The Duckworth Ultra Magnum Inboard 22 ft. 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.