Formula 18 vs Nacra F18 Infusion
How do the Formula 18 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.
.svg?width=960)
Formula 18 
Nacra F18 Infusion | Formula 18 | Nacra F18 Infusion | |
|---|---|---|
| Length overall | 18.1 ft5.52 m | 18.1 ft5.52 m |
| Waterline length | —— | —— |
| Beam | 8.5 ft2.60 m | 8.5 ft2.60 m |
| Draft | 4.6 ft1.40 m | —— |
| Displacement | 397 lb180 kg | 397 lb180 kg |
| Ballast | —— | —— |
| Sail area | 229 ft²21.3 m² | 229 ft²21.3 m² |
| SA / Displacement | 67.83 | 67.83 |
| Displacement / Length | — | — |
| Comfort ratio | — | — |
| Capsize screening | 4.64 | 4.64 |
| Hull speed (kn) | — | — |
Formula 18 vs Nacra F18 Infusion: the short version
- The Formula 18 and Nacra F18 Infusion are close in length (18.1 ft5.52 m vs 18.1 ft5.52 m ).
- On sail area/displacement the Nacra F18 Infusion carries the more powerful rig (67.8 vs 67.8), favouring lighter-air performance.
- By the capsize screening formula the Nacra F18 Infusion rates better for offshore work (4.64 vs 4.64).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.