The Beneteau 31 2007 vs Beneteau Swift Trawler 50 2013 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 Beneteau Swift Trawler 50 2013 measures 49,2 feet overall (2013), giving it roughly 17,4 additional feet of deck space compared to the Beneteau 31 2007 at 31,8 feet (2007). Weight tells a clearer story for trailering families: the Beneteau Swift Trawler 50 2013 tips the scales at 35 264 lbs — 24 572 lbs less than the Beneteau 31 2007 at 10 692 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 Beneteau 31 2007 and 2 hp for the Beneteau Swift Trawler 50 2013. 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 Beneteau Swift Trawler 50 2013 carries 317 gallons versus 34 gallons in the Beneteau 31 2007. 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 Beneteau Swift Trawler 50 2013 is rated for 14 passengers, while the Beneteau 31 2007 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Swift Trawler 50 2013 could be the deciding factor.
The Beneteau 31 2007 has a documented displacement of 10 692 lbs. Displacement data wasn't available for the other boat in this comparison.
The Beneteau 31 2007 uses Sloop rigging. The Beneteau 31 2007 has a documented auxiliary engine of 21 hp.
For extended cruising, water capacity matters: the Beneteau 31 2007 carries 34 gallons versus 2 gallons on the Beneteau Swift Trawler 50 2013 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The Beneteau Swift Trawler 50 2013 at 49,2 ft offers more living space, greater range, and a more substantial offshore capability. The Beneteau 31 2007 at 31,8 ft is the easier, lower-cost option — simpler to crew and a strong choice for coastal and day sailing.