The Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 vs Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989 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 400 MkII - Fin Keel Fin Keel 2000 at 41,6 ft versus Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989 at 43,2 ft. Weight tells a clearer story for trailering families: the Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989 tips the scales at 20 503 lbs — 802 lbs less than the Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 at 19 701 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 — 56 hp for the Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 and 54 hp for the Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989. 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 — 44 gal and 46 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989 is rated for 13 passengers, while the Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989 could be the deciding factor.
Both boats sit in a similar displacement bracket — 19 701 lbs for the Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 and 20 503 lbs for the Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.
Both boats draw a similar depth — 6,1 ft and 6,7 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 uses Sloop rigging. Helm style differs too: the Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 uses a 2 wheels versus a 1 wheel on the Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones.
Hull speed is rated at 8,1 knots for the Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 and 8,0 knots for the Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989. For extended cruising, water capacity matters: the Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989 carries 111 gallons versus 87 gallons on the Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The Catalina Yachts Catalina 400 MkII - Fin Keel Fin Keel 2000 and Catalina Yachts Catalina 42 - Fin Keel Fin Keel 1989 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.