The Beneteau First 34.7 2005 vs Beneteau First 38 1982 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.
The power gap is worth calling out. Rated to 60 hp, the Beneteau First 38 1982 has a 39-hp advantage over the Beneteau First 34.7 2005's 21-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Beneteau First 38 1982 carries 34 gallons versus 20 gallons in the Beneteau First 34.7 2005. 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 First 38 1982 is rated for 12 passengers, while the Beneteau First 34.7 2005 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau First 38 1982 could be the deciding factor.
The Beneteau First 38 1982 has a documented displacement of 15 653 lbs. Displacement data wasn't available for the other boat in this comparison.
Both boats draw a similar depth — 6,7 ft and 6,1 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Beneteau First 34.7 2005 uses Sloop rigging. For auxiliary power the Beneteau First 38 1982 carries a 60-hp engine against 21 hp on the Beneteau First 34.7 2005. 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 7,8 knots for the Beneteau First 38 1982 and 7,2 knots for the Beneteau First 34.7 2005. For extended cruising, water capacity matters: the Beneteau First 38 1982 carries 106 gallons versus 26 gallons on the Beneteau First 34.7 2005 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The Beneteau First 38 1982 at 40,2 ft offers more living space, greater range, and a more substantial offshore capability. The Beneteau First 34.7 2005 at 34,0 ft is the easier, lower-cost option — simpler to crew and a strong choice for coastal and day sailing.