Nacra 20 vs Nacra F18 Infusion
How do the Nacra 20 and Nacra F18 Infusion compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Nacra 20 
Nacra F18 Infusion | Nacra 20 | Nacra F18 Infusion | |
|---|---|---|
| Length overall | 20.0 ft6.10 m | 18.1 ft5.52 m |
| Waterline length | —— | —— |
| Beam | 8.5 ft2.59 m | 8.5 ft2.60 m |
| Draft | 3.2 ft0.97 m | —— |
| Displacement | 390 lb177 kg | 397 lb180 kg |
| Ballast | —— | —— |
| Sail area | 256 ft²23.8 m² | 229 ft²21.3 m² |
| SA / Displacement | 76.73 | 67.83 |
| Displacement / Length | — | — |
| Comfort ratio | — | — |
| Capsize screening | 4.65 | 4.64 |
| Hull speed (kn) | — | — |
Nacra 20 vs Nacra F18 Infusion: the short version
- The Nacra 20 is the larger boat at 20.0 ft6.10 m LOA versus 18.1 ft5.52 m for the Nacra F18 Infusion.
- On sail area/displacement the Nacra 20 carries the more powerful rig (76.7 vs 67.8), favouring lighter-air performance.
- By the capsize screening formula the Nacra F18 Infusion rates better for offshore work (4.64 vs 4.65).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.