Cal 20 vs Cal T/4
How do the Cal 20 and Cal T/4 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Cal 20 | Cal 20 | Cal T/4 | |
|---|---|---|
| Length overall | 20.0 ft6.10 m | 24.2 ft7.37 m |
| Waterline length | 18.0 ft5.49 m | 21.0 ft6.40 m |
| Beam | 7.0 ft2.13 m | 8.0 ft2.44 m |
| Draft | 3.3 ft1.01 m | 4.0 ft1.22 m |
| Displacement | 1,950 lb885 kg | 4,000 lb1,814 kg |
| Ballast | 900 lb408 kg | 2,000 lb907 kg |
| Sail area | 195 ft²18.1 m² | 256 ft²23.8 m² |
| SA / Displacement | 19.99 | 16.25 |
| Displacement / Length | 149 | 193 |
| Comfort ratio | 12.1 | 17.6 |
| Capsize screening | 2.24 | 2.02 |
| Hull speed (kn) | 5.7 | 6.1 |
Cal 20 vs Cal T/4: the short version
- The Cal T/4 is the larger boat at 24.2 ft7.37 m LOA versus 20.0 ft6.10 m for the Cal 20.
- The Cal T/4 is heavier, displacing about 105% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Cal 20 carries the more powerful rig (20.0 vs 16.3), favouring lighter-air performance.
- The Cal T/4 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Cal T/4 rates better for offshore work (2.02 vs 2.24).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.