The Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999 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.
On paper these two are close siblings in the size department — Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999 at 31,1 ft versus Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 at 31,1 ft. Weight tells a clearer story for trailering families: the Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999 tips the scales at 10 701 lbs — 401 lbs more 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 - Fin Keel Fin Keel 1999 and 26 hp for the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999. 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. Both carry nearly identical fuel loads — 20 gal and 20 gal — so range won't be a tiebreaker here.
Both boats are rated for 9 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.
Both boats sit in a similar displacement bracket — 10 701 lbs for the Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999 and 10 300 lbs for the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.
Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999 draws 5,8 ft, compared to 4,0 ft for the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999. That 1,8-foot difference affects which anchorages you can access, which haul-out facilities will take you, and how carefully you need to read the tide tables in shallower cruising grounds.
The Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999 uses Sloop rigging.
Hull speed is rated at 6,9 knots for the Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 and 6,9 knots for the Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999.
Bottom line: The Catalina Yachts Catalina 310 - Fin Keel Fin Keel 1999 and Catalina Yachts Catalina 310 - Wing Keel Wing Keel 1999 are closely matched on paper. A sea trial on both in representative conditions is the only reliable way to find which one suits your sailing style, home port, and intended cruising ground.