Maximum permissible mid-span deflection of a weather-deck hatch cover: L/200 per IACS UR S21.
Formula
$$ \delta_\text{mid} \leq \frac{L}{200} $$Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $L$ | Unsupported span | m | hatch GA |
| $δ$ | Mid-span deflection | mm | measurement or FE analysis |
Sources
- IACS UR S21 and S21A.