The Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 vs Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 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.
Size is the most obvious dividing line here. The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 measures 31,1 feet overall (1999), giving it roughly 13,9 additional feet of deck space compared to the Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 at 17,2 feet (1994). Weight tells a clearer story for trailering families: the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 tips the scales at 10 300 lbs - 9 650 lbs less than the Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 at 650 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 Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 tops out at 26 hp. Engine specs for the Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 aren't listed - confirm with a dealer before selecting an outboard.
For family outings this is probably the sharpest distinction between the two. The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 is rated for 9 passengers, while the Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 could be the deciding factor.
Displacement is where these two sailboats genuinely part ways. The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 displaces 10 300 lbs - a 9 650-lb difference over the Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 at 650 lbs. That gap separates two entirely different categories of sailing: the heavier boat is built for offshore passage-making and load-carrying, while the lighter hull rewards performance sailing and easier handling in lighter air.
Both boats draw a similar depth - 3,0 ft and 4,0 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 uses Sloop rigging. Helm style differs too: the Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 uses a 1 tiller versus a 1 wheel on the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones. The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 has a documented auxiliary engine of 26 hp.
The Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 is trailerable, giving it a significant lifestyle advantage for sailors who want to move between lakes, rivers, and coastal waters without committing to a marina slip.
Bottom line: The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 is the offshore and bluewater choice - at 10 300 lbs displacement and 31 ft it has the load capacity, range, and seakeeping for extended passages. The Catalina Yachts Catalina 16.5 - Fin Keel Fin Keel 1994 at 650 lbs is the more nimble, accessible option and is trailerable - easier to single-hand and better suited to coastal and inland sailing.