CS 34 vs CS 40
How do the CS 34 and CS 40 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
CS 34 | CS 34 | CS 40 | |
|---|---|---|
| Length overall | 33.5 ft10.21 m | 39.3 ft11.96 m |
| Waterline length | 27.7 ft8.43 m | 32.7 ft9.96 m |
| Beam | 11.3 ft3.43 m | 12.7 ft3.86 m |
| Draft | 6.3 ft1.91 m | 6.6 ft2.01 m |
| Displacement | 10,500 lb4,763 kg | 17,000 lb7,711 kg |
| Ballast | —— | 7,500 lb3,402 kg |
| Sail area | 533 ft²49.5 m² | 767 ft²71.3 m² |
| SA / Displacement | 17.79 | 18.56 |
| Displacement / Length | 221 | 218 |
| Comfort ratio | 22.0 | 25.8 |
| Capsize screening | 2.06 | 1.97 |
| Hull speed (kn) | 7.0 | 7.7 |
CS 34 vs CS 40: the short version
- The CS 40 is the larger boat at 39.3 ft11.96 m LOA versus 33.5 ft10.21 m for the CS 34.
- The CS 40 is heavier, displacing about 62% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the CS 40 carries the more powerful rig (18.6 vs 17.8), favouring lighter-air performance.
- The CS 40 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the CS 40 rates better for offshore work (1.97 vs 2.06).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.