When two boats share the same hull type — in this case both the Duckworth 21 2011 and the Duckworth Pacific Navigator Sport 20 2013 are deep 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 — Duckworth 21 2011 at 21,0 ft versus Duckworth Pacific Navigator Sport 20 2013 at 21,9 ft. Weight tells a clearer story for trailering families: the Duckworth Pacific Navigator Sport 20 2013 tips the scales at 1 635 lbs — 1 607 lbs less than the Duckworth 21 2011 at 28 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 Pacific Navigator Sport 20 2013 tops out at 200 hp. Engine specs for the Duckworth 21 2011 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Duckworth 21 2011 carries 62 gallons versus 42 gallons in the Duckworth Pacific Navigator Sport 20 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.