C&C 121 vs C&C 42 Custom
How do the C&C 121 and C&C 42 Custom 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 121 | C&C 42 Custom | |
|---|---|---|
| Length overall | 40.0 ft12.19 m | 42.5 ft12.95 m |
| Waterline length | 35.5 ft10.82 m | 34.3 ft10.44 m |
| Beam | 13.1 ft3.99 m | 12.9 ft3.94 m |
| Draft | 6.5 ft1.98 m | 7.0 ft2.13 m |
| Displacement | 14,600 lb6,622 kg | 20,000 lb9,072 kg |
| Ballast | 6,000 lb2,722 kg | —— |
| Sail area | 844 ft²78.4 m² | 835 ft²77.6 m² |
| SA / Displacement | 22.61 | 18.13 |
| Displacement / Length | 146 | 222 |
| Comfort ratio | 19.9 | 27.9 |
| Capsize screening | 2.14 | 1.90 |
| Hull speed (kn) | 8.0 | 7.8 |
C&C 121 vs C&C 42 Custom: the short version
- The C&C 42 Custom is the larger boat at 42.5 ft12.95 m LOA versus 40.0 ft12.19 m for the C&C 121.
- The C&C 42 Custom is heavier, displacing about 37% 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 18.1), favouring lighter-air performance.
- The C&C 42 Custom scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the C&C 42 Custom rates better for offshore work (1.90 vs 2.14).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.