F1 vs K3
How do the F1 and K3 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
| F1 | K3 | |
|---|---|---|
| Length overall | 15.7 ft4.79 m | 16.1 ft4.91 m |
| Waterline length | —— | —— |
| Beam | 6.6 ft2.00 m | 7.3 ft2.21 m |
| Draft | —— | —— |
| Displacement | 254 lb115 kg | 304 lb138 kg |
| Ballast | —— | —— |
| Sail area | 121 ft²11.2 m² | 160 ft²14.9 m² |
| SA / Displacement | 48.27 | 56.62 |
| Displacement / Length | — | — |
| Comfort ratio | — | — |
| Capsize screening | 4.14 | 4.31 |
| Hull speed (kn) | — | — |
F1 vs K3: the short version
- The F1 and K3 are close in length (15.7 ft4.79 m vs 16.1 ft4.91 m ).
- The K3 is heavier, displacing about 20% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the K3 carries the more powerful rig (56.6 vs 48.3), favouring lighter-air performance.
- By the capsize screening formula the F1 rates better for offshore work (4.14 vs 4.31).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.