GM Change from Weight Shift
Change in GM when a weight is shifted vertically on board - GG' = w·d/Δ then ΔGM = −GG'.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Mass shifted | t | |
| Distance moved | m | |
| Displacement | t |
Source: Kemp & Young - Ship Stability
In short
Change in GM when a weight is shifted vertically on board - GG' = w\u00b7d/\u0394 then \u0394GM = \u2212GG'.