Beneteau 31 vs Beneteau First Class 10
How do the Beneteau 31 and Beneteau First Class 10 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Beneteau 31 
Beneteau First Class 10 | Beneteau 31 | Beneteau First Class 10 | |
|---|---|---|
| Length overall | 31.7 ft9.65 m | 34.3 ft10.46 m |
| Waterline length | 28.5 ft8.69 m | 30.1 ft9.17 m |
| Beam | 11.1 ft3.38 m | 9.7 ft2.95 m |
| Draft | 5.8 ft1.78 m | 5.8 ft1.75 m |
| Displacement | 8,933 lb4,052 kg | 6,900 lb3,130 kg |
| Ballast | 2,207 lb1,001 kg | 2,450 lb1,111 kg |
| Sail area | 461 ft²42.8 m² | 518 ft²48.1 m² |
| SA / Displacement | 17.13 | 22.87 |
| Displacement / Length | 172 | 113 |
| Comfort ratio | 19.0 | 16.6 |
| Capsize screening | 2.14 | 2.03 |
| Hull speed (kn) | 7.2 | 7.3 |
Beneteau 31 vs Beneteau First Class 10: the short version
- The Beneteau First Class 10 is the larger boat at 34.3 ft10.46 m LOA versus 31.7 ft9.65 m for the Beneteau 31.
- The Beneteau 31 is heavier, displacing about 29% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Beneteau First Class 10 carries the more powerful rig (22.9 vs 17.1), favouring lighter-air performance.
- The Beneteau 31 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Beneteau First Class 10 rates better for offshore work (2.03 vs 2.14).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.