Corvette 31 vs Roue 20
How do the Corvette 31 and Roue 20 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Corvette 31 
Roue 20 | Corvette 31 | Roue 20 | |
|---|---|---|
| Length overall | 31.2 ft9.50 m | 31.0 ft9.45 m |
| Waterline length | 22.5 ft6.86 m | 21.0 ft6.40 m |
| Beam | 9.1 ft2.77 m | 8.0 ft2.44 m |
| Draft | 7.0 ft2.13 m | 4.2 ft1.28 m |
| Displacement | 8,545 lb3,876 kg | 4,700 lb2,132 kg |
| Ballast | 4,000 lb1,814 kg | —— |
| Sail area | 444 ft²41.2 m² | 382 ft²35.5 m² |
| SA / Displacement | 17.00 | 21.78 |
| Displacement / Length | 335 | 227 |
| Comfort ratio | 27.9 | 19.0 |
| Capsize screening | 1.78 | 1.91 |
| Hull speed (kn) | 6.4 | 6.1 |
Corvette 31 vs Roue 20: the short version
- The Corvette 31 and Roue 20 are close in length (31.2 ft9.50 m vs 31.0 ft9.45 m ).
- The Corvette 31 is heavier, displacing about 82% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Roue 20 carries the more powerful rig (21.8 vs 17.0), favouring lighter-air performance.
- The Corvette 31 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Corvette 31 rates better for offshore work (1.78 vs 1.91).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.