The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 vs Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 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 36 MkI - Wing Keel Wing Keel 1982 measures 36,4 feet overall (1982), giving it roughly 5,3 additional feet of deck space compared to the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 at 31,1 feet (1999). Weight tells a clearer story for trailering families: the Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 tips the scales at 14 081 lbs — 3 781 lbs less than the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 at 10 300 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.
Both boats share a closely matched power ceiling — 26 hp for the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 and 30 hp for the Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 carries 33 gallons versus 20 gallons in the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 is rated for 11 passengers, while the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 could be the deciding factor.
Displacement is where these two sailboats genuinely part ways. The Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 displaces 14 081 lbs — a 3 781-lb difference over the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 at 10 300 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 — 4,0 ft and 4,5 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 uses Sloop rigging.
Hull speed is rated at 7,4 knots for the Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 and 6,9 knots for the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999.
Bottom line: The Catalina Yachts Catalina 36 MkI - Wing Keel Wing Keel 1982 is the offshore and bluewater choice — at 14 081 lbs displacement and 36 ft it has the load capacity, range, and seakeeping for extended passages. The Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 at 10 300 lbs is the more nimble, accessible option — easier to single-hand and better suited to coastal and inland sailing.