The Alumacraft Navigator 175 2005 vs Alumacraft Tournament Sport 195 2007 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department — Alumacraft Navigator 175 2005 at 17,0 ft versus Alumacraft Tournament Sport 195 2007 at 19,0 ft. Weight tells a clearer story for trailering families: the Alumacraft Tournament Sport 195 2007 tips the scales at 1 735 lbs — 590 lbs less than the Alumacraft Navigator 175 2005 at 1 145 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 Alumacraft Tournament Sport 195 2007 has a 120-hp advantage over the Alumacraft Navigator 175 2005's 80-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 4 gal and 4 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Alumacraft Tournament Sport 195 2007 is rated for 6 passengers, while the Alumacraft Navigator 175 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Tournament Sport 195 2007 could be the deciding factor.
Bottom line: Choose the Alumacraft Tournament Sport 195 2007 if your priority is putting more people on the water — it handles 6 passengers and at 19,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Navigator 175 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.