C&C 121 vs C&C 30
How do the C&C 121 and C&C 30 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
C&C 121 
C&C 30 | C&C 121 | C&C 30 | |
|---|---|---|
| Length overall | 40.0 ft12.19 m | 30.0 ft9.14 m |
| Waterline length | 35.5 ft10.82 m | 24.9 ft7.60 m |
| Beam | 13.1 ft3.99 m | 10.0 ft3.05 m |
| Draft | 6.5 ft1.98 m | 5.0 ft1.52 m |
| Displacement | 14,600 lb6,622 kg | 8,000 lb3,629 kg |
| Ballast | 6,000 lb2,722 kg | 3,450 lb1,565 kg |
| Sail area | 844 ft²78.4 m² | 459 ft²42.6 m² |
| SA / Displacement | 22.61 | 18.36 |
| Displacement / Length | 146 | 231 |
| Comfort ratio | 19.9 | 21.8 |
| Capsize screening | 2.14 | 2.00 |
| Hull speed (kn) | 8.0 | 6.7 |
C&C 121 vs C&C 30: the short version
- The C&C 121 is the larger boat at 40.0 ft12.19 m LOA versus 30.0 ft9.14 m for the C&C 30.
- The C&C 121 is heavier, displacing about 83% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the C&C 121 carries the more powerful rig (22.6 vs 18.4), favouring lighter-air performance.
- The C&C 30 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the C&C 30 rates better for offshore work (2.00 vs 2.14).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.