Archambault A31 vs Archambault A40
How do the Archambault A31 and Archambault A40 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 | Archambault A40 | |
|---|---|---|
| Length overall | 31.3 ft9.54 m | 39.3 ft11.99 m |
| Waterline length | —— | 36.9 ft11.25 m |
| Beam | 10.6 ft3.22 m | 12.3 ft3.76 m |
| Draft | 6.2 ft1.88 m | 7.9 ft2.41 m |
| Displacement | 6,945 lb3,150 kg | 13,669 lb6,200 kg |
| Ballast | 2,976 lb1,350 kg | 5,512 lb2,500 kg |
| Sail area | 555 ft²51.6 m² | 838 ft²77.9 m² |
| SA / Displacement | 24.39 | 23.45 |
| Displacement / Length | — | 121 |
| Comfort ratio | — | 19.8 |
| Capsize screening | 2.22 | 2.06 |
| Hull speed (kn) | — | 8.1 |
Archambault A31 vs Archambault A40: the short version
- The Archambault A40 is the larger boat at 39.3 ft11.99 m LOA versus 31.3 ft9.54 m for the Archambault A31.
- The Archambault A40 is heavier, displacing about 97% 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 23.5), favouring lighter-air performance.
- By the capsize screening formula the Archambault A40 rates better for offshore work (2.06 vs 2.22).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.