Division 1 WATERCRAFT DESIGN CATEGORIES
United Kingdom
| Design category | Wind force(Beaufort scale) | Significant wave height(H ⅓, metres) |
|---|---|---|
| A | exceeding 8 | exceeding 4 |
| B | up to, and including, 8 | up to, and including, 4 |
| C | up to, and including, 6 | up to, and including, 2 |
| D | up to, and including, 4 | up to, and including, 0,3 |