Safety floor under MEPC.1/Circ.850/Rev.3. Level 1 (bulkers/tankers only) gives a simple linear formula:
Formula
$$ P_\text{min} = \begin{cases} 0.0687 \cdot \text{DWT} + 2924.4 & \text{DWT} < 145{,}000 \ 0.0689 \cdot \text{DWT} + 2937.0 & \text{DWT} \ge 145{,}000 \end{cases} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $P_\text{min}$ | Minimum installed MCR required | kW | result |
| $DWT$ | Deadweight tonnage | t | ship design |
Other ship types require Level 2 manoeuvring-in-waves assessment (out of scope of this calculator).
Sources
- IMO MEPC.1/Circ.850/Rev.3.