Cal 20 vs Tornado
How do the Cal 20 and Tornado compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Cal 20 
Tornado | Cal 20 | Tornado | |
|---|---|---|
| Length overall | 20.0 ft6.10 m | 20.0 ft6.10 m |
| Waterline length | 18.0 ft5.49 m | 19.2 ft5.84 m |
| Beam | 7.0 ft2.13 m | 10.1 ft3.08 m |
| Draft | 3.3 ft1.01 m | 2.5 ft0.76 m |
| Displacement | 1,950 lb885 kg | 342 lb155 kg |
| Ballast | 900 lb408 kg | —— |
| Sail area | 195 ft²18.1 m² | 236 ft²21.9 m² |
| SA / Displacement | 19.99 | 77.21 |
| Displacement / Length | 149 | 22 |
| Comfort ratio | 12.1 | 1.3 |
| Capsize screening | 2.24 | 5.78 |
| Hull speed (kn) | 5.7 | 5.9 |
Cal 20 vs Tornado: the short version
- The Cal 20 and Tornado are close in length (20.0 ft6.10 m vs 20.0 ft6.10 m ).
- The Cal 20 is heavier, displacing about 470% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Tornado carries the more powerful rig (77.2 vs 20.0), favouring lighter-air performance.
- The Cal 20 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Cal 20 rates better for offshore work (2.24 vs 5.78).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.