The Hallberg - Rassy 31 1992 vs Hallberg - Rassy 310 2009 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 — Hallberg - Rassy 31 1992 at 31,7 ft versus Hallberg - Rassy 310 2009 at 30,1 ft. Weight tells a clearer story for trailering families: the Hallberg - Rassy 31 1992 tips the scales at 9 921 lbs — 331 lbs more than the Hallberg - Rassy 310 2009 at 9 590 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 — 19 hp for the Hallberg - Rassy 31 1992 and 19 hp for the Hallberg - Rassy 310 2009. 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 Hallberg - Rassy 310 2009 carries 26 gallons versus 16 gallons in the Hallberg - Rassy 31 1992. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
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 — 9 921 lbs for the Hallberg - Rassy 31 1992 and 9 590 lbs for the Hallberg - Rassy 310 2009. 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 — 5,7 ft and 5,1 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Hallberg - Rassy 31 1992 uses Sloop rigging.
Hull speed is rated at 7,2 knots for the Hallberg - Rassy 310 2009 and 7,0 knots for the Hallberg - Rassy 31 1992.
Bottom line: The Hallberg - Rassy 31 1992 and Hallberg - Rassy 310 2009 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.