Archambault A31 vs Archambault Coco
How do the Archambault A31 and Archambault Coco 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 Coco | |
|---|---|---|
| Length overall | 31.3 ft9.54 m | 21.3 ft6.50 m |
| Waterline length | —— | 20.3 ft6.20 m |
| Beam | 10.6 ft3.22 m | 8.9 ft2.70 m |
| Draft | 6.2 ft1.88 m | 4.5 ft1.36 m |
| Displacement | 6,945 lb3,150 kg | 2,535 lb1,150 kg |
| Ballast | 2,976 lb1,350 kg | 992 lb450 kg |
| Sail area | 555 ft²51.6 m² | 285 ft²26.5 m² |
| SA / Displacement | 24.39 | 24.53 |
| Displacement / Length | — | 134 |
| Comfort ratio | — | 10.4 |
| Capsize screening | 2.22 | 2.60 |
| Hull speed (kn) | — | 6.0 |
Archambault A31 vs Archambault Coco: the short version
- The Archambault A31 is the larger boat at 31.3 ft9.54 m LOA versus 21.3 ft6.50 m for the Archambault Coco.
- The Archambault A31 is heavier, displacing about 174% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Archambault Coco carries the more powerful rig (24.5 vs 24.4), favouring lighter-air performance.
- By the capsize screening formula the Archambault A31 rates better for offshore work (2.22 vs 2.60).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.