The Nacra Sailing Nacra 15 2015 vs Nacra Sailing Nacra Inter 20 1998 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.
For family outings this is probably the sharpest distinction between the two. The Nacra Sailing Nacra Inter 20 1998 is rated for 6 passengers, while the Nacra Sailing Nacra 15 2015 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Nacra Sailing Nacra Inter 20 1998 could be the deciding factor.
The Nacra Sailing Nacra 15 2015 has a documented displacement of 309 lbs. Displacement data wasn't available for the other boat in this comparison.
Both boats draw a similar depth — 3,4 ft and 3,4 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Nacra Sailing Nacra 15 2015 uses fractional_rig_sloop rigging.
Both the Nacra Sailing Nacra 15 2015 and Nacra Sailing Nacra Inter 20 1998 are listed as trailerable, which opens up the freedom to explore different sailing grounds without paying for a permanent berth.
Bottom line: The Nacra Sailing Nacra Inter 20 1998 at 20,0 ft offers more living space, greater range, and a more substantial offshore capability. The Nacra Sailing Nacra 15 2015 at 15,5 ft is the easier, lower-cost option — simpler to crew, trailerable, and a strong choice for coastal and day sailing.