Topside icing allowance per IS Code 2008 Part B §6 for fishing vessels and vessels operating in winter seasonal zones - 30 kg/m² horizontal projected + 15 kg/m² vertical.
Formula
$$ m_{ice} = 30 \cdot A_{hor} + 15 \cdot A_{ver} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $A_{hor}$ | Horizontally-projected area (deck + walkways) | m² | GA drawing |
| $A_{ver}$ | Vertically-projected area (sides + rails) | m² | profile drawing |
Sources
- IS Code 2008 Part B §6.