When two boats share the same hull type — in this case both the Blue Wave 180 Classic 2011 and the Blue Wave 220 Classic Behnke 2005 are modified vee designs with fiberglass 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?
Size is the most obvious dividing line here. The Blue Wave 220 Classic Behnke 2005 measures 22,0 feet overall (2005), giving it roughly 4,3 additional feet of deck space compared to the Blue Wave 180 Classic 2011 at 17,7 feet (2011). Weight tells a clearer story for trailering families: the Blue Wave 180 Classic 2011 tips the scales at 995 lbs — 982 lbs more than the Blue Wave 220 Classic Behnke 2005 at 13 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 200 hp, the Blue Wave 220 Classic Behnke 2005 has a 85-hp advantage over the Blue Wave 180 Classic 2011's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Blue Wave 220 Classic Behnke 2005 is rated for 9 passengers, while the Blue Wave 180 Classic 2011 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Blue Wave 220 Classic Behnke 2005 could be the deciding factor.
Bottom line: Choose the Blue Wave 220 Classic Behnke 2005 if your priority is putting more people on the water — it handles 9 passengers and at 22,0 ft it has the deck room to back that rating up comfortably. The Blue Wave 180 Classic 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.