Newport 30 vs Newport 31
How do the Newport 30 and Newport 31 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Newport 30 Lindsay Plastics/Capital Yachts Inc. · 1968 Newport 31 Lindsay Plastics/Capital Yachts Inc. · 1987 | Newport 30 | Newport 31 | |
|---|---|---|
| Length overall | 30.0 ft9.14 m | 30.7 ft9.35 m |
| Waterline length | 25.0 ft7.62 m | 27.0 ft8.23 m |
| Beam | 10.5 ft3.20 m | 10.5 ft3.20 m |
| Draft | 4.8 ft1.45 m | 5.2 ft1.57 m |
| Displacement | 7,500 lb3,402 kg | 8,500 lb3,856 kg |
| Ballast | 2,500 lb1,134 kg | 2,600 lb1,179 kg |
| Sail area | 409 ft²38.0 m² | 447 ft²41.5 m² |
| SA / Displacement | 17.08 | 17.17 |
| Displacement / Length | 214 | 193 |
| Comfort ratio | 19.1 | 20.4 |
| Capsize screening | 2.15 | 2.06 |
| Hull speed (kn) | 6.7 | 7.0 |
Newport 30 vs Newport 31: the short version
- The Newport 31 is the larger boat at 30.7 ft9.35 m LOA versus 30.0 ft9.14 m for the Newport 30.
- The Newport 31 is heavier, displacing about 13% 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 17.1), favouring lighter-air performance.
- The Newport 31 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Newport 31 rates better for offshore work (2.06 vs 2.15).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.