The Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 vs Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 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.
Size is the most obvious dividing line here. The Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007 measures 36,5 feet overall (2007), giving it roughly 5,4 additional feet of deck space compared to the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 at 31,1 feet (2012). Weight tells a clearer story for trailering families: the Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007 tips the scales at 14 013 lbs — 3 812 lbs less than the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 at 10 201 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 — 21 hp for the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 and 30 hp for the Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007. 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 350 MkII - Wing Keel Wing Keel 2007 carries 40 gallons versus 27 gallons in the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012. 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 350 MkII - Wing Keel Wing Keel 2007 is rated for 11 passengers, while the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 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 350 MkII - Wing Keel Wing Keel 2007 could be the deciding factor.
Displacement is where these two sailboats genuinely part ways. The Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007 displaces 14 013 lbs — a 3 812-lb difference over the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 at 10 201 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.
Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 draws 6,4 ft, compared to 4,6 ft for the Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007. 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 315 - Fin Keel Fin Keel 2012 uses Sloop rigging. For auxiliary power the Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007 carries a 30-hp engine against 21 hp on the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.
Hull speed is rated at 7,5 knots for the Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007 and 6,9 knots for the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012. For extended cruising, water capacity matters: the Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007 carries 77 gallons versus 35 gallons on the Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The Catalina Yachts Catalina 350 MkII - Wing Keel Wing Keel 2007 is the offshore and bluewater choice — at 14 013 lbs displacement and 37 ft it has the load capacity, range, and seakeeping for extended passages. The Catalina Yachts Catalina 315 - Fin Keel Fin Keel 2012 at 10 201 lbs is the more nimble, accessible option — easier to single-hand and better suited to coastal and inland sailing.