GM result from an inclining experiment - weight shift × arm / (displacement × tan θ). Mandatory verification for new-build / major modification per SOLAS II-1 Reg. 5.
Formula
$$ GM = \frac{w \cdot d}{\Delta \cdot \tan\theta} $$Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $w \cdot d$ | Moment shifted | t·m | weight schedule |
| $\Delta$ | Inclining-condition displacement | t | draft surveys |
| $\theta$ | Measured heel | rad | pendulum |
Sources
- SOLAS II-1 Reg. 5 / IS Code 2008.