DP station-keeping footprint radius under a given environmental load, based on worst-case single-failure capability - the practical output of IMCA M140 analysis.
Formula
$$ r \approx \tfrac{1}{2} T_{resp} \cdot \text{utilisation} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $T_{resp}$ | DP loop response time | s | DP system data |
| $util.$ | Ratio required / available thrust | - | capability plot |
Sources
- IMCA M140 DP Capability.