Cal 39 vs Cal 39 Mark II
How do the Cal 39 and Cal 39 Mark II compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Cal 39 | Cal 39 | Cal 39 Mark II | |
|---|---|---|
| Length overall | 38.7 ft11.79 m | 39.0 ft11.89 m |
| Waterline length | 31.3 ft9.53 m | 32.1 ft9.78 m |
| Beam | 11.7 ft3.56 m | 12.0 ft3.66 m |
| Draft | 6.0 ft1.83 m | 6.7 ft2.03 m |
| Displacement | 14,600 lb6,622 kg | 17,000 lb7,711 kg |
| Ballast | 6,600 lb2,994 kg | 7,000 lb3,175 kg |
| Sail area | 738 ft²68.6 m² | 719 ft²66.8 m² |
| SA / Displacement | 19.77 | 17.40 |
| Displacement / Length | 214 | 230 |
| Comfort ratio | 25.6 | 28.1 |
| Capsize screening | 1.91 | 1.87 |
| Hull speed (kn) | 7.5 | 7.6 |
Cal 39 vs Cal 39 Mark II: the short version
- The Cal 39 and Cal 39 Mark II are close in length (38.7 ft11.79 m vs 39.0 ft11.89 m ).
- The Cal 39 Mark II is heavier, displacing about 16% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Cal 39 carries the more powerful rig (19.8 vs 17.4), favouring lighter-air performance.
- The Cal 39 Mark II scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Cal 39 Mark II rates better for offshore work (1.87 vs 1.91).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.