Allmand 31 vs Newport 31
How do the Allmand 31 and Newport 31 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Allmand 31 | Allmand 31 | Newport 31 | |
|---|---|---|
| Length overall | 30.8 ft9.37 m | 30.7 ft9.35 m |
| Waterline length | 27.9 ft8.51 m | 27.0 ft8.23 m |
| Beam | 11.3 ft3.45 m | 10.5 ft3.20 m |
| Draft | 3.8 ft1.17 m | 5.2 ft1.57 m |
| Displacement | 11,100 lb5,035 kg | 8,500 lb3,856 kg |
| Ballast | 4,300 lb1,950 kg | 2,600 lb1,179 kg |
| Sail area | 461 ft²42.8 m² | 447 ft²41.5 m² |
| SA / Displacement | 14.82 | 17.17 |
| Displacement / Length | 228 | 193 |
| Comfort ratio | 23.5 | 20.4 |
| Capsize screening | 2.03 | 2.06 |
| Hull speed (kn) | 7.1 | 7.0 |
Allmand 31 vs Newport 31: the short version
- The Allmand 31 and Newport 31 are close in length (30.8 ft9.37 m vs 30.7 ft9.35 m ).
- The Allmand 31 is heavier, displacing about 31% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Newport 31 carries the more powerful rig (17.2 vs 14.8), favouring lighter-air performance.
- The Allmand 31 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Allmand 31 rates better for offshore work (2.03 vs 2.06).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.