F1 vs K4
How do the F1 and K4 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
F1 | F1 | K4 | |
|---|---|---|
| Length overall | 15.7 ft4.79 m | 14.8 ft4.51 m |
| Waterline length | —— | —— |
| Beam | 6.6 ft2.00 m | 7.3 ft2.21 m |
| Draft | —— | —— |
| Displacement | 254 lb115 kg | 254 lb115 kg |
| Ballast | —— | —— |
| Sail area | 121 ft²11.2 m² | 118 ft²11.0 m² |
| SA / Displacement | 48.27 | 47.07 |
| Displacement / Length | — | — |
| Comfort ratio | — | — |
| Capsize screening | 4.14 | 4.58 |
| Hull speed (kn) | — | — |
F1 vs K4: the short version
- The F1 is the larger boat at 15.7 ft4.79 m LOA versus 14.8 ft4.51 m for the K4.
- On sail area/displacement the F1 carries the more powerful rig (48.3 vs 47.1), favouring lighter-air performance.
- By the capsize screening formula the F1 rates better for offshore work (4.14 vs 4.58).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.