Archambault A31 vs M34
How do the Archambault A31 and M34 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Archambault A31 
M34 | Archambault A31 | M34 | |
|---|---|---|
| Length overall | 31.3 ft9.54 m | 34.0 ft10.36 m |
| Waterline length | —— | 33.1 ft10.08 m |
| Beam | 10.6 ft3.22 m | 9.8 ft2.97 m |
| Draft | 6.2 ft1.88 m | 8.2 ft2.49 m |
| Displacement | 6,945 lb3,150 kg | 5,952 lb2,700 kg |
| Ballast | 2,976 lb1,350 kg | 2,315 lb1,050 kg |
| Sail area | 555 ft²51.6 m² | 764 ft²71.0 m² |
| SA / Displacement | 24.39 | 37.22 |
| Displacement / Length | — | 73 |
| Comfort ratio | — | 13.3 |
| Capsize screening | 2.22 | 2.15 |
| Hull speed (kn) | — | 7.7 |
Archambault A31 vs M34: the short version
- The M34 is the larger boat at 34.0 ft10.36 m LOA versus 31.3 ft9.54 m for the Archambault A31.
- The Archambault A31 is heavier, displacing about 17% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the M34 carries the more powerful rig (37.2 vs 24.4), favouring lighter-air performance.
- By the capsize screening formula the M34 rates better for offshore work (2.15 vs 2.22).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.