Archambault A31 vs Atlante
How do the Archambault A31 and Atlante compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Archambault A31 | Archambault A31 | Atlante | |
|---|---|---|
| Length overall | 31.3 ft9.54 m | 27.8 ft8.47 m |
| Waterline length | —— | 21.0 ft6.40 m |
| Beam | 10.6 ft3.22 m | 8.1 ft2.47 m |
| Draft | 6.2 ft1.88 m | 4.3 ft1.30 m |
| Displacement | 6,945 lb3,150 kg | 5,300 lb2,404 kg |
| Ballast | 2,976 lb1,350 kg | —— |
| Sail area | 555 ft²51.6 m² | 260 ft²24.2 m² |
| SA / Displacement | 24.39 | 13.68 |
| Displacement / Length | — | 255 |
| Comfort ratio | — | 21.9 |
| Capsize screening | 2.22 | 1.86 |
| Hull speed (kn) | — | 6.1 |
Archambault A31 vs Atlante: the short version
- The Archambault A31 is the larger boat at 31.3 ft9.54 m LOA versus 27.8 ft8.47 m for the Atlante.
- The Archambault A31 is heavier, displacing about 31% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Archambault A31 carries the more powerful rig (24.4 vs 13.7), favouring lighter-air performance.
- By the capsize screening formula the Atlante rates better for offshore work (1.86 vs 2.22).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.