Change in GM when a weight is shifted vertically on board - GG’ = w·d/Δ then ΔGM = −GG'.
Formula
$$ GG’ = \frac{w \cdot d}{\Delta} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $w$ | Mass shifted | t | loading plan |
| $d$ | Distance moved | m | deck drawings |
| $\Delta$ | Displacement | t | loading computer |
Sources
- Kemp & Young - Ship Stability.