C&C 121 vs C&C Mega 30 One Design
How do the C&C 121 and C&C Mega 30 One Design 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 Mega 30 One Design | C&C 121 | C&C Mega 30 One Design | |
|---|---|---|
| Length overall | 40.0 ft12.19 m | 29.9 ft9.12 m |
| Waterline length | 35.5 ft10.82 m | 27.3 ft8.33 m |
| Beam | 13.1 ft3.99 m | 7.9 ft2.41 m |
| Draft | 6.5 ft1.98 m | 5.0 ft1.52 m |
| Displacement | 14,600 lb6,622 kg | 4,500 lb2,041 kg |
| Ballast | 6,000 lb2,722 kg | 2,250 lb1,021 kg |
| Sail area | 844 ft²78.4 m² | 428 ft²39.8 m² |
| SA / Displacement | 22.61 | 25.12 |
| Displacement / Length | 146 | 98 |
| Comfort ratio | 19.9 | 15.7 |
| Capsize screening | 2.14 | 1.92 |
| Hull speed (kn) | 8.0 | 7.0 |
C&C 121 vs C&C Mega 30 One Design: the short version
- The C&C 121 is the larger boat at 40.0 ft12.19 m LOA versus 29.9 ft9.12 m for the C&C Mega 30 One Design.
- The C&C 121 is heavier, displacing about 224% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the C&C Mega 30 One Design carries the more powerful rig (25.1 vs 22.6), favouring lighter-air performance.
- The C&C 121 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the C&C Mega 30 One Design rates better for offshore work (1.92 vs 2.14).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.