Loadline draft shift for sea water ↔ fresh water per ICLL 1966.
Formula
$$ \text{FWA (mm)} = \frac{\Delta}{4 \cdot \text{TPC}} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $\Delta$ | Summer-load displacement | t | loadline certificate |
| $TPC$ | Tonnes per centimetre at SLWL | t/cm | hydrostatic table |
| $FWA$ | Fresh water allowance | mm | result |
Sources
- IMO ICLL 1966.
- Derrett & Barrass Ch.8.