CS 30 vs CS 50
How do the CS 30 and CS 50 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
CS 30 
CS 50 | CS 30 | CS 50 | |
|---|---|---|
| Length overall | 30.0 ft9.14 m | 49.9 ft15.20 m |
| Waterline length | 25.4 ft7.75 m | 38.4 ft11.70 m |
| Beam | 10.3 ft3.12 m | 14.2 ft4.32 m |
| Draft | 5.5 ft1.68 m | 8.7 ft2.64 m |
| Displacement | 8,000 lb3,629 kg | 27,557 lb12,500 kg |
| Ballast | 3,440 lb1,560 kg | 12,125 lb5,500 kg |
| Sail area | 462 ft²42.9 m² | 1,390 ft²129.1 m² |
| SA / Displacement | 18.48 | 24.38 |
| Displacement / Length | 217 | 218 |
| Comfort ratio | 20.8 | 29.9 |
| Capsize screening | 2.05 | 1.88 |
| Hull speed (kn) | 6.8 | 8.3 |
CS 30 vs CS 50: the short version
- The CS 50 is the larger boat at 49.9 ft15.20 m LOA versus 30.0 ft9.14 m for the CS 30.
- The CS 50 is heavier, displacing about 244% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the CS 50 carries the more powerful rig (24.4 vs 18.5), favouring lighter-air performance.
- The CS 50 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the CS 50 rates better for offshore work (1.88 vs 2.05).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.