Matching a modified vee Alumaweld Blackhawk 2010 against a flat Alumaweld Flat Bottom 20 Foot 2009 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 Alumaweld Blackhawk 2010 measures 20,1 feet overall (2010), giving it roughly 18,1 additional feet of deck space compared to the Alumaweld Flat Bottom 20 Foot 2009 at 2,0 feet (2009). Weight tells a clearer story for trailering families: the Alumaweld Blackhawk 2010 tips the scales at 138 lbs — 124 lbs more than the Alumaweld Flat Bottom 20 Foot 2009 at 14 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 150 hp, the Alumaweld Blackhawk 2010 has a 35-hp advantage over the Alumaweld Flat Bottom 20 Foot 2009's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Alumaweld Blackhawk 2010 carries 38 gallons versus 3 gallons in the Alumaweld Flat Bottom 20 Foot 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 5 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.
Bottom line: The Alumaweld Blackhawk 2010 at 20,1 ft is the right call if deck space, comfort, and entertaining are top of your list. The Alumaweld Flat Bottom 20 Foot 2009 at 2,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.