International 210 vs Semona 30
How do the International 210 and Semona 30 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
International 210 | International 210 | Semona 30 | |
|---|---|---|
| Length overall | 29.8 ft9.09 m | 29.9 ft9.10 m |
| Waterline length | 22.5 ft6.86 m | 23.0 ft7.00 m |
| Beam | 5.8 ft1.78 m | 9.7 ft2.95 m |
| Draft | 5.8 ft1.78 m | 4.3 ft1.30 m |
| Displacement | 2,300 lb1,043 kg | 7,055 lb3,200 kg |
| Ballast | 1,145 lb519 kg | 3,307 lb1,500 kg |
| Sail area | 285 ft²26.5 m² | 344 ft²32.0 m² |
| SA / Displacement | 26.17 | 14.96 |
| Displacement / Length | 90 | 260 |
| Comfort ratio | 13.7 | 21.2 |
| Capsize screening | 1.77 | 2.02 |
| Hull speed (kn) | 6.4 | 6.4 |
| Average used price | — | €3,900 |
International 210 vs Semona 30: the short version
- The International 210 and Semona 30 are close in length (29.8 ft9.09 m vs 29.9 ft9.10 m ).
- The Semona 30 is heavier, displacing about 207% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the International 210 carries the more powerful rig (26.2 vs 15.0), favouring lighter-air performance.
- The Semona 30 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the International 210 rates better for offshore work (1.77 vs 2.02).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.