Both the Duckworth Magnum Inboard 21 ft. 2007 and the Duckworth Pacific Navigator 235 2012 are deep-V designs, both built in aluminium, so 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?

The Duckworth Pacific Navigator 235 2012 tops out at 450 hp. Engine specs for the Duckworth Magnum Inboard 21 ft. 2007 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Duckworth Pacific Navigator 235 2012 carries 127 gallons versus 62 gallons in the Duckworth Magnum Inboard 21 ft. 2007. 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 Pacific Navigator 235 2012 is rated for 7 passengers, while the Duckworth Magnum Inboard 21 ft. 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth Pacific Navigator 235 2012 could be the deciding factor.